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PEOPLE@HES-SO – Annuaire et Répertoire des compétences
PEOPLE@HES-SO – Annuaire et Répertoire des compétences

PEOPLE@HES-SO
Annuaire et Répertoire des compétences

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Caon Maurizio

Caon Maurizio

Professeur HES ordinaire/Responsable d'institut

Compétences principales

Human Computer Interaction

Digital Transformation

User Experience Design (UX)

Human-Centered Computing

Digital system design

Design thinking

Digitalisation

  • Contact

  • Recherche

  • Publications

  • Conférences

Contrat principal

Professeur HES ordinaire/Responsable d'institut

Téléphone: +41 26 429 67 44

Bureau: HEG 411

Haute école de gestion de Fribourg
Chemin du Musée 4, 1700 Fribourg, CH
HEG-FR
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En cours

NESTORE COACH (SC1-PM-15-2017 H2020)

Rôle: Co-requérant(s)

Requérant(e)s: Giuseppe Andreoni, Politecnico di Milano

Financement: EU SC1-PM-15-2017 H2020

Description du projet :

NESTORE (Novel Empowering Solutions and Technologies for Older people to Retain Everyday life activities) is a H2020 EU project funded under the SC1-PM15-2017 programme aimed at developing virtual coaches for older adults.

Equipe de recherche au sein de la HES-SO: Angelini Leonardo , Mugellini Elena , Abou Khaled Omar , El Kamali Mira , Crausaz Didier , Carrino Francesco , Caon Maurizio

Partenaires académiques: Giuseppe Andreoni, Politecnico di Milano

Durée du projet: 01.09.2017 - 01.01.2021

Archivage des données: https://nestore-coach.eu/

Publications liées:

  • The NESTORE e-coach : accompanying older adults through a personalized pathway to wellbeing
  • Towards the NESTORE e-Coach : a tangible and embodied conversational agent for older adults

Statut: En cours

Terminés

Personalised Guidance Services for Optimising lifestyle in teen-agers through awareness, motivation and engagement
AGP

Rôle: Collaborateur/trice

Requérant(e)s: FR - EIA - Institut HumanTech, Mugellini Elena, FR - EIA - Institut HumanTech

Financement: FP7

Description du projet : Obesity and other lifestyle-related illness are among the top healthcare challenges in Europe. Obesity alone accounts for up to 7% of healthcare costs in the EU, as well as wider economy costs associated with lower productivity, lost output and premature death. Obesity in younger age is an alarming predictor for obesity in adulthood, but also entails short term health complications in juvenile age along with greater risk of social and psychological problems. Knowing how to stay healthy is not enough to motivate individuals to adopt healthy lifestyles, but relevant progress can be achieved through the use of incentives delivered through a combination of processes and mobile technologies. Recognizing the effectiveness of this approach, the PEGASO project will develop a multi-dimensional cross-disciplinary ICT system that will exploit sophisticated game mechanics to motivate behavioral changes towards healthier lifestyles and prevent overweight and obesity in the younger population. The project relies on ICT technologies to implement a framework for the promotion of an health service based on three main features: individual&environmental monitoring, including wearable sensors, mobile phone and multimedia diaries for the acquisition of physical, physiological and behavioural attributes of participants; feedback to the user, presenting personalised healthy options for alternative lifestyles; social connectivity, encouraging involvement in social network experience sharing and social engagement. For the system development, a user centered approach, social and networked games and online education will be used. PEGASO will be tested with over 300 adolescents in three EU member states (Spain, Italy, UK). The development of PEGASO project will mobilize a wide stakeholders' ecosystem contributed by National Health Authorities and Research Institutions, Industries and Academia from the ICT and healthcare sectors, as well as food companies and SMEs

Equipe de recherche au sein de la HES-SO: Caon Maurizio , Abou Khaled Omar , Carrino Stefano , Mugellini Elena , Crausaz Didier

Partenaires académiques: FR - EIA - Institut HumanTech; Mugellini Elena, FR - EIA - Institut HumanTech

Durée du projet: 02.12.2013 - 31.12.2017

Montant global du projet: 890'185 CHF

Statut: Terminé

2024

LeverAge :
Article scientifique ArODES
a European network to leverage the multi-age workforce

Justin Marcus, Susanne Scheibe, Dorien Kooij, Donald M. Truxillo, Sara Zaniboni, Lilii Abuladze, Maurizio Caon

Work, aging and retirement,  10, 4, 309-316

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Résumé:

Bringing together 150+ scholars and practitioners from 50+ countries, and funded by the European Commission, COST Action LeverAge (https://www.cost.eu/actions/CA22120/) is the first network-building project of its kind in the work and organizational psychology and human resource management (WOP/HRM) aspects of work and aging. Focused on the aging workforce, the Action aims to foster interdisciplinary and multinational scientific excellence and the translation of science to practical and societal impact across 4 years. Based on a research synthesis, we identify five broad research directions for work and aging science including work and organizational practices for a multi-age workforce, successful aging at work, the integration of age-diverse workers and knowledge transfer, aging and technology at work, and career development in later life and retirement. We provide key research questions to guide scientific inquiry along these five research directions alongside best practice recommendations to expand scholarly impact in WOP/HRM.

QoQa :
Article professionnel ArODES
breaking boundaries and scaling an online community

Pedro Soares Lima Vieira, Marco Dante Biscaro, Maurizio Caon

International journal of case studies in management,  2024, 22, 2

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Exploring the impact of commercial wearable activity trackers on body awareness and body representations :
Article scientifique ArODES
a mixed-methods study on self-tracking

Arianna Boldi, Alessandro Silacci, Marc-Olivier Boldi, Mauro Cherubini, Maurizio Caon, Noé Zufferey, Kévin Huguenin, Amon Rapp

Computers in Human Behavior,  151, 108036

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Résumé:

Wearable trackers are believed to enhance users’ self-knowledge, but their impact on the relationship that people have with their own bodies is relatively unexplored. This study aims to shed light on the potential of physiological data collected by a commercial wearable activity tracker to influence how users relate with their own bodies, specifically their body awareness, body image, body consciousness, and body surveillance. Additionally, the study seeks to determine whether this change in body perception improves or worsens the users’ relation with their own bodies. We recruited 321 first-time wearable users, including a control group. Participants in the experimental group (N = 225) completed a set of scales and questionnaires addressing body awareness and representations before and after wearing a Fitbit for four months, and 20 of them were further interviewed about their experience. The findings indicate that participants’ overall view of their bodies was not influenced by the device. However, the Fitbit did increase the awareness of bodily sensations, particularly for women. Moreover, we describe how participants made sense of the data displayed by the Fitbit, which was also used as an emotionregulation tool. These results can contribute to the understanding of the impact of self-tracking technologies on the users’ perceptions of their own body and provide insights for future research in this field.

2023

Cheer for me: effect of non-player character audience feedback on older adult users of virtual reality exergames
Article scientifique ArODES

Kangyou Yu, Shaoyue Wen, Wenge Xu, Maurizio Caon, Nilufar Baghaei, Hai-Ning Liang

Virtual Reality,  27, 3, 1887-1903

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Résumé:

related to sports such as tennis or boxing. Similarly, in videogames, players’ gameplay could be affected if there is an audience and its feedback in response to players’ performance in the environment. The inclusion of an audience with nonplayer characters (NPC) is common in videogames in general. However, there is a limited exploration of the use of an NPC audience in virtual reality (VR) exergames, especially focusing on elderly players. To fill this gap, this work examines the effect of an NPC audience and its associated feedback (with/without) on elderly users of VR exergames. In a user study, we used 120 NPC in a virtual audience. Results showed that the presence of the NPC audience with responsive feedback led to higher performance (with a higher success rate of performing gesture actions, more successful combinations of actions (or combos for short) performed, and more opponent’s combos prevented) and better gameplay experience (with higher levels of competence, autonomy, relatedness, immersion, and intuitive controls) of elderly players. Our results can help frame the design and engineering of VR exergames that are targeted at elderly users to help them have an enhanced gameplay experience and improve their health.

Co-designing an embodied e-coach with older adults :
Article scientifique ArODES
the tangible coach journey

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Nick Dulake, Paul Chamberlain, Claire Craig, Carlo Emilio Standoli, Giuseppe Andreoni, Omar Abou Khaled, Elena Mugellini

International Journal of Human–Computer Interaction,  40, 10, 2736-2759

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Résumé:

This article describes a tangible interface for an e-coach, co-designed in four countries to meet older adults’ needs and expectations. The aim of this device is to coach the user by giving recommendations, personalized tasks and to build empathy through vocal, visual, and physical interaction. Through our co-design process, we collected insights that helped identifying requirements for the physical design, the interaction design and the privacy and data control. In the first phase, we collected users’ needs and expectations through several workshops. Requirements were then trans- formed into three design concepts that were rated and commented by our target users. The final design was implemented and tested in three countries. We discussed the results and the open challenges for the design of physical e-coaches for older adults. To encourage further developments in this field, we released the research outputs of this design process in an open-source repository.

Digital health technology to support health care professionals and family caregivers caring for patients with cognitive impairment: scoping review
Article scientifique ArODES

Mohamed-Amine Choukou, Funminiyi Olatoye, Reg Urbanowski, Maurizio Caon, Caroline Monnin

JMIR Mental Health,  2023, vol. 10, p. e40330

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Résumé:

Background: Digital health technology is a promising way of supporting health care providers and family caregivers as they care for patients with cognitive impairment. Objective: This scoping review aimed to portray the use of digital health technology to assist health care providers and family caregivers in caring for patients with cognitive impairment who live in the community or in a facility. Methods: We conducted a scoping review of peer-reviewed scientific articles available in MEDLINE, PsycINFO, Scopus, and CINAHL with Full Text, as well as gray literature available in preprint servers, theses depositories, and various national and international dementia organizations’ websites. The search yielded 975 articles, of which we included 7 (0.7%) in the review. Results: Of the 7 interventions included in the retrieved manuscripts, 2 (29%) were digital calendar reminder systems to support activities of daily living and medication management; 2 (29%) were apps on tablet devices to simulate the presence of family before therapy interventions; 1 (14%) was a social robot used in therapeutic sessions to include elements of musicotherapy, reminiscence, cognitive games, and relaxation; 1 (14%) was a commercially available computer system that provides access to various recreational leisure activities; and 1 (14%) was a web-based self-management support system that helps family caregivers to deal with behavior changes in a relative with dementia. Of the 7 articles, only 1 (14%) reported on the use of a behavior change theory, namely a comprehensive process model of engagement coupled with cognitive stimulation therapy. Conclusions: Literature on the topic is scarce, recent, and heterogeneous. There is a clear need for a theoretical framework to conceptualize and govern the use of behavior change models that incorporate technology for patients with cognitive impairment.

2022

The NESTORE e-Coach : designing a multi-domain pathway to well-being in older age
Article scientifique ArODES

Leonardo Angelini, Mira El Kamali, Elena Mugellini, Omar Abou Khaled, Christina Röcke, Simone Porcelli, Alfonso Mastropietro, Giovanni Rizzo, Noemi Boqué, Josep Maria Del Bas, Filippo Palumbo, Michele Girolami, Antonino Crivello, Canan Ziylan, Paula Subías-Beltrán, Silvia Orte, Carlo Emilio Standoli, Laura Fernandez Maldonado, Maurizio Caon, Martin Sykora, Suzanne Elayan, Sabrina Guye, Giuseppe Andreoni

Technologies,  2022, vol. 10, no 2, pp. 50-77

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Résumé:

This article describes the coaching strategies of the NESTORE e-coach, a virtual coach for promoting healthier lifestyles in older age. The novelty of the NESTORE project is the definition of a multi-domain personalized pathway where the e-coach accompanies the user throughout different structured and non-structured coaching activities and recommendations. The article also presents the design process of the coaching strategies, carried out including older adults from four European countries and experts from the different health domains, and the results of the tests carried out with 60 older adults in Italy, Spain and The Netherlands.

PEGASO e-Diary: :
Article scientifique ArODES
user engagement and dietary behavior change of a mobile food record for adolescents

Maurizio Caon, Federica Prinelli, Leonardo Angelini, Stefano Carrino, Elena Mugellini, Silvia Orte, José C. E. Serrano, Sarah Atkinson, Anne Martin, Fulvio Adorni

Frontiers in Nutrition,  2022, vol. 9, article 727480

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Résumé:

Background: Obesity amongst children and adolescents is becoming a major health problem globally and mobile food records can play a crucial role in promoting healthy dietary habits. Objective: To describe the methodology for the implementation of the e-Diary mobile food record, to assess its capability in promoting healthy eating habits, to evaluate the factors associated with its usage and engagement. Methods: This is a descriptive study that compared the characteristics of participants engaged in the e-Diary, which was part of the PEGASO project in which an app to provide proactive health promotion was given to 365 students at 4 European sites enrolled during October to December 2016: England (UK), Scotland (UK), Lombardy (Italy), and Catalonia (Spain). The e-Diary tracked the users' dietary habits in terms of food groups, dietary indexes, and 6 dietary target behaviors relating to consumption of: fruit; vegetable; breakfast; sugar-sweetened beverages; fast-food; and snacks. The e-Diary provided also personalized suggestions for the next meal and gamification. Results: The e-Diary was used for 6 months by 357 adolescents (53.8% females). The study showed that females used the e-Diary much more than males (aOR 3.8, 95% CI 1.6–8.8). Participants aged 14 years were more engaged in the e-Diary than older age groups (aOR 5.1, 95% CI 1.4–18.8) as were those with a very good/excellent self-perceived health status compared to their peers with fair/poor health perception (aOR 4.2, 95% CI 1.3–13.3). Compared to the intervention sites, those living in Catalonia (aOR 13.2 95% CI 2.5–68.8) were more engaged. In terms of behavior change, a significant positive correlation between fruit (p < 0.0001) and vegetables (p = 0.0087) intake was observed in association with increased engagement in the e-Diary. Similarly, adolescents who used the app for more than 2 weeks had significantly higher odds of not skipping breakfast over the study period (aOR 2.5, 95% CI 1.0–6.3). Conclusions: The users highly engaged with the e-Diary were associated with improved dietary behaviors: increased consumption of fruit and vegetables and reduced skipping of breakfast. Although the overall usage of the e-Diary was high during the first weeks, it declined thereafter. Future applications should foster user engagement, particularly targeting adolescents at high risk.

2021

Conversational agents for health and well-being across the life course :
Article scientifique ArODES
protocol for an evidence map

Mara Pereira Guerreiro, Leonardo Angelini, Helga Rafael Henriques, Mira El Kamali, Cristina Baixinho, João Balsa, Isa Félix Brito, Omar Abou Khaled, Maria Beatriz Carmo, Ana Paula Claudio, Maurizio Caon, Karl Daher, Bruno Alexandre, Mafalda Padinha, Elena Mugellini

JMIR Research Protocols,  2021, vol. 10, no. 9, article no. e26680

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Résumé:

Background: Conversational agents, which we defined as computer programs that are designed to simulate two-way human conversation by using language and are potentially supplemented with nonlanguage modalities, offer promising avenues for health interventions for different populations across the life course. There is a lack of open-access and user-friendly resources for identifying research trends and gaps and pinpointing expertise across international centers. Objective: Our aim is to provide an overview of all relevant evidence on conversational agents for health and well-being across the life course. Specifically, our objectives are to identify, categorize, and synthesize—through visual formats and a searchable database—primary studies and reviews in this research field. Methods: An evidence map was selected as the type of literature review to be conducted, as it optimally corresponded to our aim. We systematically searched 8 databases (MEDLINE; CINAHL; Web of Science; Scopus; the Cochrane, ACM, IEEE, and Joanna Briggs Institute databases; and Google Scholar). We will perform backward citation searching on all included studies. The first stage of a double-stage screening procedure, which was based on abstracts and titles only, was conducted by using predetermined eligibility criteria for primary studies and reviews. An operational screening procedure was developed for streamlined and consistent screening across the team. Double data extraction will be performed with previously piloted data collection forms. We will appraise systematic reviews by using A Measurement Tool to Assess Systematic Reviews (AMSTAR) 2. Primary studies and reviews will be assessed separately in the analysis. Data will be synthesized through descriptive statistics, bivariate statistics, and subgroup analysis (if appropriate) and through high-level maps such as scatter and bubble charts. The development of the searchable database will be informed by the research questions and data extraction forms. Results: As of April 2021, the literature search in the eight databases was concluded, yielding a total of 16,351 records. The first stage of screening, which was based on abstracts and titles only, resulted in the selection of 1282 records of primary studies and 151 records of reviews. These will be subjected to second-stage screening. A glossary with operational definitions for supporting the study selection and data extraction stages was drafted. The anticipated completion date is October 2021. Conclusions: Our wider definition of a conversational agent and the broad scope of our evidence map will explicate trends and gaps in this field of research. Additionally, our evidence map and searchable database of studies will help researchers to avoid fragmented research efforts and wasteful redundancies. Finally, as part of the Harnessing the Power of Conversational e-Coaches for Health and Well-being Through Swiss-Portuguese Collaboration project, our work will also inform the development of an international taxonomy on conversational agents for health and well-being, thereby contributing to terminology standardization and categorization.

Coaching older adults towards a healthier lifestyle: psychological and technological methods
Chapitre de livre ArODES

Christina Röcke, Leonardo Angelini, Sabrina Guye, Mira El Kamali, Maurizio Caon, Omar Abou Khaled, Elena Mugellini

Dans Andreoni, Giuseppe, Mambretti, Cinzia, Digital health technology for better aging: a multidisciplinary approach  (Pp. 161-177). 2021,  Cham : Springer

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Résumé:

This chapter discusses the theoretical behaviour change framework and its integration and implementation of behaviour change techniques that form the conceptual psychological basis for innovative but efficient coaching approach. We review the current state of e-coaching solutions for older adults that can be found in the literature and identify gaps. Finally, we review and discuss the technological implementation of behaviour change techniques applied in NESTORE to support healthy older adults to adopt a healthy lifestyle in all NESTORE well-being domains as reference case study.

Building trust and companionship in e-coaching through embodiment
Chapitre de livre ArODES

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Guiseppe Andreoni, Nick Dulake, Paul Chamberlain, Omar Abou Khlaed, Elena Mugellini

Dans Andreoni, Giuseppe, Mambretti, Cinzia, Digital health technology for better aging: a multidisciplinary approach  (Pp. 195-204). 2021,  Cham : Springer

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Résumé:

E-coaches are promising tools for health interventions, being scalable and relatively low costs compared to human coaches. Nevertheless, they cannot compare to humans when it comes to trust and social companionship. Hence, many researches were held around the importance of tangible user interfaces in building trust and companionship during human-machine interaction. Co-design, in particular, is the act of creating with stakeholders within the design development process to ensure the results meet their needs and are usable. This chapter describes a design process method and the rationale for building an embodiment for a companion and a trustable e-coach. We also shed lights on the co-design process held in the NESTORE project, which was specifically conducted with older adults to build a vocal assistant that supports user’s behavioral change, as well as to increase the social bonding with the NESTORE e-coach.

Protection des données: consentement, devoir d'informer et utilisation de pictogrammes
Article professionnel ArODES

Bruno Pasquier, Alessandro Silacci, Maurizio Caon

Aktuelle Juristische Praxis / Pratique Juridique Actuelle (AJP / PJA),  2021, vol. 7, pp. 889-904

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Résumé:

Diverses initiatives encouragent l’utilisation de pictogrammes dans le contexte du devoir d’informer préalablement à un consentement à un traitement de données personnelles. L’article discute les conditions de validité du consentement et en particulier les exigences au devoir d’informer (II. et III.). Les auteurs se demandent ensuite, en prenant en compte des études dans le domaine de l’Interaction Homme-Machine, si l’utilisation de pictogrammes permet d’atteindre le but recherché, à savoir à faciliter la compréhension des informations (IV.). Les résultats montrent que, même si plusieurs réserves peuvent être faites, l’utilisation de pictogrammes permet effectivement d’améliorer la fluidité du regard et d’augmenter la vitesse de recherche d’informations ainsi que la motivation à interagir (IV.C. et IV.D.).

A novel actuating–sensing bone conduction-based system for active hand pose sensing and material densities evaluation through hand touch
Article scientifique ArODES

Giovanni Saggio, Angela Scioscia Santoro, Vito Errico, Maurizio Caon, Alfiero Leoni, Giuseppe Ferri, Vincenzo Stronelli

IEEE transactions on instrumentation and measurement,  2021, vol. 70, pp. 1-7

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Résumé:

We realized and tested a novel system aimed at discriminating different hand poses by means of an active actuating and sensing approach realized by converting electro- magnetic to mechanical waves (and vice versa) and analyzing the characteristics of the waves after their travel through the bones and cartilage of the hand. The actuating part is realized through a transducer, placed on the dorsal part of the hand, performing electromagnetic-to-mechanical energy conversion. The sensing part is realized through an accelerometer, placed on a finger, per- forming mechanical-to-electromagnetic energy conversion. The way the sound propagates through the fingers mainly depends on the traveled path, the angles of fingers’ flexion, and the (un)matched conditions with surroundings. Therefore, the investigation of the characteristics of the returned signal (in phase shifts and power spectral densities) can furnish information for discriminating among different finger poses and different densities of touched materials. The system highly performed in repeatability and reproducibility of the measures, well-discriminating among hand poses and among densities of touched materials.

Towards an AI-based tailored training planning for road cyclists :
Article scientifique ArODES
a case study

Alessandro Silacci, Redha Tahar, Maurizio Caon

Applied Sciences,  2021, vol. 11, no. 1, article no. 313, pp. 1-17

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Résumé:

In a world where the data is a central piece, we provide a novel technique to design training plans for road cyclists. This study exposes an in-depth review of a virtual coach based on state-of-the-art artificial intelligence techniques to schedule road cycling training sessions. Together with a dozen of road cycling participants’ training data, we were able to create and verify an e-coach dedicated to any level of road cyclists. The system can provide near-human coaching advice on the training of cycling athletes based on their past capabilities. In this case study, we extend the tests of our empirical research project and analyze the results provided by experts. Results of the conducted experiments show that the computational intelligence of our system can compete with human coaches at training planification. In this case study, we evaluate the system we previously developed and provide new insights and paths of amelioration for systems based on artificial intelligence for athletes. We observe that our system performs equal or better than the control training plans in 14 and 24 week training periods where it was evaluated as better in 4 of our 5 test components. We also report a higher statistical difference in the results of the experts’ evaluations between the control and virtual coach training plan (24 weeks; training load: X2 = 4.751; resting time quantity: X2 = 3.040; resting time distance: X2 = 2.550; efficiency: X2 = 2.142).

2020

"Hi This Is NESTORE, your personal assistant" :
Article scientifique ArODES
design of an integrated IoT system for a personalized coach for healthy aging

Filippo Palumbo, Antonino Crivello, Francesco Furfari, Michele Girolami, Alfonso Mastropietro, Giorgio Manfredelli, Christina Röcke, Sabrina Guye, Antoni Salvá Casanovas, Maurizio Caon, Francesco Carrino, Omar Abou Khaled, Elena Mugellini, Enrico Denna, Marco Mauri, David Ward, Paula Subías-Beltrán, Silvia Orte, Ciprian Candea, Gabriele Candea, Giovanna Rizzo

Frontiers in Digital Health,  2020, vol. 2, article 545949, pp. 1-17

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Résumé:

In the context of the fourth revolution in healthcare technologies, leveraging monitoring and personalization across different domains becomes a key factor for providing useful services to maintain and promote well-being. This is even more crucial for older people, with aging being a complex multi-dimensional and multi-factorial process which can lead to frailty. The NESTORE project was recently funded by the EU Commission with the aim of supporting healthy older people to sustain their well-being and capacity to live independently. It is based on a multi-dimensional model of the healthy aging process that covers physical activity, nutrition, cognition, and social activity. NESTORE is based on the paradigm of the human-in-the-loop cyber-physical system that, exploiting the availability of Internet of Things technologies combined with analytics in the cloud, provides a virtual coaching system to support healthy aging. This work describes the design of the NESTORE methodology and its IoT architecture. We first model the end-user under several domains, then we present the NESTORE system that, analyzing relevant key-markers, provides coaching activities and personalized feedback to the user. Finally, we describe the validation strategy to assess the effectiveness of NESTORE as a coaching platform for healthy aging.

Design of an ergonomic gestural interface for professional road cycling
Article scientifique ArODES

Maurizio Caon, Rico Süsse, Benoit Grelier, Omar Abou Khaled, Elena Mugellini

Work,  2020, vol. 66, pp. 933-944

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Résumé:

BACKGROUND: Connected bike computers can support professional cyclists in achieving better performances but interacting with them requires taking their hands off the handlebar compromising focus and safety. OBJECTIVE: This research aims at exploring the design of an ergonomic interface based on micro-gestures that can allow cyclists to interact with a device while holding the handlebar. METHODS: Three different studies were conducted with seven professional cyclists adopting the gesture-elicitation technique. One study aimed at eliciting free micro-gestures; a second to evaluate gestures recognizable with a smart glove; the last focused on the gestures recognized through an interactive armband. RESULTS: The analysis of the micro-gestures elicited during these studies allowed producing a first set of guidelines to design gestural interfaces for drop-bars (a specific type of handlebar for road bikes). These guidelines suggest which fingers to use and how to design their movement in order to provide an ergonomic interface. It also introduces the principle of symmetry for the attribution of symbols to symmetric referents. Finally, it provides suggestions on the design of the interactive drop-bar. CONCLUSIONS: The guidelines provided in this paper can support the design of gestural interfaces for professional cyclists that can enhance performance and increase safety.

Virtual coaches for older adults’ wellbeing :
Article scientifique ArODES
a systematic review

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Francesco Carrino, Christina Röcke, Sabrina Guye, Giovanna Rizzo, Alfonso Mastropietro, Martin Sykora, Suzanne Elayan, Isabelle Kniestedt, Canan Ziylan, Emanuele Lettieri, Omar Abou Khaled, Elena Mugellini

IEEE Access,  2020, vol. 8, pp. 101884-101902

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Résumé:

Virtual Coaches, also known as e-coaches, are a disruptive technology in healthcare. Indeed, among other usages, they might provide cost-effective solutions for increasing human wellbeing in different domains, such as physical, nutritional, cognitive, social, and emotional. This paper presents a systematic review of virtual coaches specifically aimed at improving or maintaining older adults' health in the aforementioned domains. Such digital systems assume various forms, from classic apps, to more advanced conversational agents or robots. Fifty-six articles describing a virtual coach for older adults and aimed at improving their wellbeing were identified and further analyzed. In particular, we presented how previous studies defined their virtual coaches, which behavioral change models and techniques they adopted and the overall system architecture, in terms of monitoring solutions, processing methods and modalities for intervention delivery. Our results show that few thorough evaluations of e-coaching systems have been conducted, especially regarding multi-domain coaching approaches. Through our analysis, we identified the wellbeing domains that should be addressed in future studies as well as the most promising behavior change models and techniques and coaching interfaces. Previous work illustrates that older adults often appreciate conversational agents and robots. However, the lack of a multidomain intervention approach in the current literature motivates us to seek to define future solutions.

Correlation between entrepreneurial orientation and implementation of AI in Human Resources Management (HRM)
Article scientifique ArODES

Rico Baldegger, Maurizio Caon, Kreshnik Sadiku

Technology innovation management review,  2020, vol. 10, no. 4, pp. 72-79

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Résumé:

This paper develops the concept of adopting artificial intelligence (AI) in human resources management (HRM) through a research questionnaire and reports the results of a study designed to investigate the perception of adopting and introducing AI in HRM processes. In addition, it investigates the correlation between entrepreneurship orientation (EO) and AI in HRM processes. A survey was conducted with a sample of 310 firm members in the HR Section Romande, as well as a literature review on the adoption of new technologies. The results indicate a perceived positive value of introducing AI in HRM and a correlation between the level of a company's EO and the introduction of AI in HRM. This means that the more a company is entrepreneurially oriented, the more it tends to implement or include already implemented AI projects and tools in HRM processes. The perceived value of AI in HRM was evaluated by comparing answers to research questions involving the introduction of AI in HRM tools, and expectations of widely implementing AI in the next five years. The main barrier of adopting AI in HRM appeared to be a lack of skills and training. In addition, potential features of implementing AI in HRM were identified as potential steps toward introducing AI as a new technology. Questions regarding the evaluation of EO were based on a research Colvin Slevin (1989). It is important for SMEs to invest in information technology to set the basis for further development. Owing to intensified competitive pressures and the necessity of entering global markets, SMEs are incrementally employing Information Technology (IT) to create substantial benefits. Most prior research has focused more on IT adoption in large organizations, yet when regarding the limited resources of SMEs, the IT adoption process is considerably different. (Ghobakhloo, Sabouri, Hong and Zulkifli, 2011).

2019

Promoting healthy teenage behaviour across three European countries through the use of a novel smartphone technology platform, PEGASO fit for future :
Article scientifique ArODES
study protocol of a quasi-experimental, controlled, multi-Centre trial

Elisa Puigdomenech, Anne Martin, Alexandra Lan, Fulvio Adorni, Santiago Felipe Gomez, Maurizio Caon

BMC medical informatics and decision making,  2019, vol. 19, no 278, pp. 1-13

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Résumé:

Background : Behaviour change interventions targeting physical activity, diet, sleep and sedentary behaviour of teenagers show promise when delivered through smartphones. However, to date there is no evidence of effectiveness of multicomponent smartphone-based interventions. Utilising a user-centred design approach, we developed a theory-based, multi-dimensional system, PEGASO Fit For Future (PEGASO F4F), which exploits sophisticated game mechanics involving smartphone applications, a smartphone game and activity sensors to motivate teenagers to take an active role in adopting and maintaining a healthy lifestyle. This paper describes the study protocol to assess the feasibility, usability and effectiveness (knowledge/awareness and behavioural change in lifestyle) of the PEGASO system. Methods : We are conducting a quasi-experimental controlled cluster trial in 4 sites in Spain, Italy, and UK (England, Scotland) over 6 months. We plan to recruit 525, in a 2:1 basis, teenagers aged 13–16 years from secondary schools. The intervention group is provided with the PEGASO system whereas the comparison group continues their usual educational routine. Outcomes include feasibility, acceptance, and usability of the PEGASO system as well as between and within group changes in motivation, self-reported diet, physical activity, sedentary and sleeping behaviour, anthropometric measures and knowledge about a healthy lifestyle. Discussion : PEGASO F4F will provide evidence into the cross-cultural similarities and differences in the feasibility, acceptability and usability of a multi-dimensional smartphone based behaviour change intervention for teenagers. The study will explore facilitating factors, challenges and barriers of engaging teenagers to adapt and maintain a healthy lifestyle when using smartphone technology. Positive results from this ICT based multi component intervention may have significant implications both at clinical level, improving teenagers health and at public health level since it can present an influential tool against the development of chronic disease during adulthood.

Codesign of public spaces for intercultural communication, diversity and inclusion
Chapitre de livre ArODES

Alessandra Rinaldi, Leonardo Angelini, Abou Khaled, Elena Mugellini, Maurizio Caon

Dans Di Bucchianico, Giuseppe, Advances in design for inclusion : proceedings of the AHFE 2019 International Conference on design for inclusion and the AHFE 2019 International Conference on human factors for apparel and textile engineering, July 24-28, 2019, Washington D.C., USA  (Pp. 186-195). 2019,  Cham, Switzerland : Springer

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The consistent phenomenon of immigration from countries with different cultures, that characterized the last decade, has changed the use of public spaces in European cities. The need to develop innovative solutions aimed at improving intercultural inclusion and mutual understanding of all citizens emerges, so that urban spaces become inclusive, safe and sustainable. This research project is focused on two main questions: (1) can design and technology enable the creation of a different way of living the public space to catalyze interpersonal interaction and to promote a shared sense of citizenship? (2) is it possible to support intercultural communication and to facilitate social inclusion through the design of innovative and interactive public spaces equipped with smart urban furniture? This paper presents three Design Orienting Scenarios as results of the research conducted by several experts, professionals and people with different cultural backgrounds during a focus groups and two different workshops where they made converge competences from design, business, engineering and social sciences to find innovative solutions for the social inclusion of migrants in urban areas.

Enhancing toward the last universal common descendant
Article scientifique ArODES

Johann A. R. Roduit, Maurizio Caon, Vincent Menuz

Journal of posthuman studies,  2018, vol. 2, no. 2, pp. 184-189

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In the debate addressing socio-ethical issues related to human enhancement, some have suggested that technological modifications of individuals could vastly increase diversity between them. This article argues the contrary. In this thought experiment, we argue that if—as some have argued—we have a moral obligation to use technology to enhance humans and other species, and if such enhancement is understood as improving particular traits only, it might artificially make all the species in the world converge toward a specific one, which we have named the last universal common descendant. In this reductio ad absurdum, we suggest that this argument could be used to challenge the idea that it would be morally good to enhance humans and other species without considering their species limitations.

2018

Utilizzare il design partecipativo per l'innovazione sostenibile
Article scientifique ArODES

Maurizio Caon, Leonardo Angelini, Omar Abou Khaled, Elena Mugellini

Rivista italiana di ergonomia,  2018, no. 16, pp. 9-23

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My pain coach :
Chapitre de livre ArODES
a mobile system with tangible interface for pain assessment

Maurizio Caon, Leonardo Angelini, Katharina Ledermann, Chantal Martin-Sölch, Omar Abou Khaled, Elena Mugellini

Dans Bagnara, Sebastiano, Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) : volume VII: ergonomics in design, design for all, activity theories for work analysis and design, affective design  (Pp. 1372-1381). 2018,  Cham : Springer

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Pain assessment is an essential first step in planning for and providing pain management. Access to effective pain management programs is often limited, due to scarcity of services. Other barriers to treatment include physical symptoms that limit mobility, distance from a clinic, transportation requirements and cost constraints. In response to these barriers to service delivery, the demand for online health resources is growing. However, current solutions present a number of shortcomings, in particular when referring to usability and accessibility. This paper presents the vision of the My Pain Coach system and the first prototype generated as the result of the first iteration of the development process. This prototype is based on a smartphone app and presents two different interfaces: a force-sensitive touchscreen, and a tangible interface based on a textile mat. A preliminary usability evaluation has been conducted and the results show that these interfaces are perceived as excellent from a usability point of view. Nevertheless, further development and testing are still required for the tangible interface.

Gesturing on the handlebar :
Chapitre de livre ArODES
a user-elicitation study for on-bike gestural interaction

Maurizio Caon, Rico Süsse, Benoit Grelier, Omar Abou Khaled, Elena Mugellini

Dans Bagnara, Sebastiano, Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) : volume VII: ergonomics in design, design for all, activity theories for work analysis and design, affective design  (Pp. 429-439). 2018,  Cham : Springer

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There are growing numbers of apps and smartphone-mounts for professional cyclists, since they are crucial to track performances during training. However, these solutions require the athlete to take her hand off the handlebar to interact with it. This represents a major safety issue for the cyclists since it requires leaving the brake control, shifting the attention and, possibly, compromising posture. This paper reports the findings of a user elicitation study conducted with seven professional and semi-professional cyclists in order to design gestures that can be performed while maintaining the hands in the correct position on the handlebar. Results report the frequency of fingers used for these gestures, with the index being the favorite. Furthermore, it provides a classification of gestures in three categories: press, extension and swipe. The most convenient gestures were the thumb and index press, followed by the extension of different combinations of fingers.

Designing urban smart furniture for facilitating migrants' integration :
Chapitre de livre ArODES
the co-design workshop as approach for supporting inclusive design

Alessandra Rinaldi, Maurizio Caon, Omar Abou Khaled, Elena Mugellini

Dans Bagnara, Sebastiano, Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) : volume VII: ergonomics in design, design for all, activity theories for work analysis and design, affective design  (Pp. 461-470). 2018,  Cham : Springer

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European cities are changing due the immigration of people from different cultures. There are many issues related to the integration and dialogue between cultures. Urban design plays a key role in how migrants participate in their host community and it is an important driver for the inclusion process. Facilitating the participation of residents in designing public spaces and their use helps to create a better sense of belonging. Promoting in public spaces the interaction of different cultures becomes a crucial element to facilitate social cohesion and living together. The research project explores an innovative approach in the use of public spaces, through the design of smart urban furniture. Based on a survey of the user’s needs, and on co-design activities, the project investigates innovative solutions for facilitating migrants’ integration and the dialogue between different cultures, through the design of innovative urban furniture, with smart technologies embodied inside. The project, based on the co-design approach of rapid prototyping, creates different kinds of new interaction among urban space and people, and between users of different social or cultural background. The results presented in this paper, were conducted by the research unit of the University of Florence, in cooperation with the Human Tech Institute and the School of Management of the University of Applied Sciences and Arts Western Switzerland.

Eudaimonic gamification to engage cancer patients in positive coping strategies
Chapitre de livre ArODES

João Ventura, Sandy Ingram, Maurizio Caon, Maya Zumstein-Shaha, Omar Abou Khaled, Elena Mugellini

Dans Kurosu, Masaaki, Human-computer interaction : interaction in context : 20th International Conference, HCI International 2018, Las Vegas, NV, USA, July 15–20, 2018, Proceedings, Part II  (Pp. 206-218). 2018,  Cham : Springer

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This paper presents a mobile gamified application encouraging positive coping strategies for patients of serious and possibly fatal illnesses. The application concept is based on the analogy between one’s lifetime memories and future bucket lists and a journey in the sea of remembrance, traveling back and forth between past and present positive moments and future wish-lists, whilst being aware that life as water, goes on. This concept was co-designed by a team of UX researchers, engineers, and domain experts applying the principles of Eudaimonic design. The iterative development process brought to the final prototype: a multimedia diary with a gameful interface, which is thoroughly described, along with the relative heuristic and empirical evaluations, in this paper.

Towards cross-generational system design
Chapitre de livre ArODES

Maurizio Caon

Dans Kurosu, Masaaki, Human-computer interaction : interaction in context : 20th International Conference, HCI International 2018, Las Vegas, NV, USA, July 15–20, 2018, Proceedings, Part II  (Pp. 258-267). 2018,  Cham : Springer

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This paper introduces the concept of cross-generational system, which indicates an information technology system designed to allow different generations interacting through centuries or, even, millennia. In the era of digital immortality and advances in artificial intelligence, there will be not only the problem of preserving and accessing data, but the emergence of digital clones will bring new challenges for technology development, interaction design and ethics. This paper provides an overview of societal transformation towards digital immortality, then describes the vision of cross-generational system design, investigates the relative future challenges and proposes the eventual socio-ethical questions.

Feet fidgeting detection based on accelerometers using decision tree learning and gradient boosting
Chapitre de livre ArODES

Julien Esseiva, Maurizio Caon, Elena Mugellini, Omar Abou Khaled, Kamiar Aminian

Dans Ortuño, Francesco, Rojas, Ignacio, Bioinformatics and Biomedical Engineering : 6th International Work-Conference, IWBBIO 2018, Granada, Spain, April 25–27, 2018, Proceedings, Part I  (Pp. 75-84). 2018,  Cham : Springer

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Detection of fidgeting activities is a field which has not been much explored as of now. Studies have shown that fidgeting has a beneficial impact on people's healthiness as it burns a significant amount of energy. Being able to detect when someone is fidgeting would allow to study more closely the health impact of fidgeting. The purpose of this work is to propose an algorithm being able to detect feet fidgeting period of subjects while sitting using 3D accelerometers on both shoes. Initial results on data from 5 subjects collected during this work shows an accuracy of 95% for a classification between sitting with fidgeting and sitting without fidgeting.

Towards the nestore e-coach: a tangible and embodied conversational agent for older adults
Article scientifique

El Kamali Mira, Angelini Leonardo, Caon Maurizio, Giuseppe Andreoni, Abou Khaled Omar, Mugellini Elena

Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers, 2018

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The ability to engage the user in a conversation and the credibility of the system are two fundamental characteristics of virtual coaches. In this paper, we present the architecture of a conversational e-coach for promoting healthy lifestyles in older age, developed in the context of the NESTORE H2020 EU project. The proposed system allows multiple access points to a conversational agent via different interaction modalities: a tangible companion that embodies the virtual coach will leverage voice and other non-verbal cues in the domestic environment, while a mobile app will integrate a text-based chat for a ubiquitous intervention. In both cases, the conversational agent will deliver personalized interventions based on behavior change models and will promote trust by means of emotionally rich conversations.

2017

Bien-être psychologique avec l'âge
Article professionnel ArODES

Leonardo Angelini, Francesco Carrino, Maurizio Caon, Elena Mugellini, Omar Abou Khaled, Nadine Couture

Angewandte GERONTOLOGIE Appliquée,  2017, vol. 2

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Résumé:

La perte progressive de mobilité chez les seniors peut avoir de lourdes conséquences, pas seulement physiques, mais aussi psychiques et cognitives due à un isolement social croissant. La fenêtre interactive est un outil permettant la communication à distance. Elle est issue d’un projet de recherche qui vise à réduire l’isolement social des seniors en utilisant de nouvelles technologies de manière innovante.

Intelligent assistive technology for Alzheimer’s disease and other dementias :
Article scientifique ArODES
a systematic review

Marcello Ienca, Fabrice Jotterand, Bernice Elger, Maurizio Caon, Alessandro Scoccia Pappagallo, Reto W. Kressig, Tenzin Wangmo

Journal of Alzheimer's Disease,  2017, vol. 56, no. 4, pp. 1301-1340

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Intelligent assistive technologies (IATs) have the potential of offering innovative solutions to mitigate the global burden of dementia and provide new tools for dementia care. While technological opportunities multiply rapidly, clinical applications are rare as the technological potential of IATs remains inadequately translated into dementia care. In this article, the authors present the results of a systematic review and the resulting comprehensive technology index of IATs with application in dementia care. Computer science, engineering, and medical databases were extensively searched and the retrieved items were systematically reviewed. For each IAT, the authors examined their technological type, application, target population, model of development, and evidence of clinical validation. The findings reveal that the IAT spectrum is expanding rapidly in volume and variety over time, and encompasses intelligent systems supporting various assistive tasks and clinical uses. At the same time, the results confirm the persistence of structural limitations to successful adoption including partial lack of clinical validation and insufficient focus on patients’ needs. This index is designed to orient clinicians and relevant stakeholders involved in the implementation and management of dementia care across the current capabilities, applications, and limitations of IATs and to facilitate the translation of medical engineering research into clinical practice. In addition, a discussion of the major methodological challenges and policy implications for the successful and ethically responsible implementation of IAT into dementia care is provided.

2016

Testing the tangible interactive window with older adults
Article scientifique ArODES

Leonardo Angelini, Francesco Carrino, Maurizio Caon, Frédéric Lemaréchal, Nadine Couture, Omar Abou Khaled, Elena Mugellini

GeroPsych,  2016, vol. 29, no. 4, pp. 215-224

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Social relationships are crucial for older adults’ well-being. Past research demonstrated that video-communication technology could reduce social isolation. However, most commercial telecommunication systems have interfaces that are too complex to be operated by older adults without assistance. In this paper, we present a system that exploits the tangible affordances of a physical window to provide a natural interface for an always-on video-communication system. In addition, we present a case study focused on the system accessibility and user acceptance with 8 older adults living in a retirement home. We also describe the preliminary findings based on an observation study and on a semistructured interview. Finally, we discuss the possible improvements and impact this system might have on older adults’ life.

2014

PEGASO :
Chapitre de livre ArODES
a personalised and motivational ICT system to empower adolescents towards healthy lifestyle

Stefano Carrino, Maurizio Caon, Leonardo Angelini, Elena Mugellini, Omar Abou Khaled, Silvia Orte, Eloisa Vargiu, Neil Coulson, José C. E. Serrano, Sarah Tabozzi, Neil Lafortuna, Giovanna Rizzo

Dans Graña, Manuel, Howlett, Robert J., Jain, Lakhmi C., Toro, Carlos, Innovation in medicine and helathcare 2014  (pp. 350-359). 2014,  Amsterdam, The Netherlands : IOS Press

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Résumé:

Unhealthy alimentary behaviours and physical inactivity habits are key risk factors for major non communicable diseases. Several researches demonstrate that juvenile obesity can lead to serious medical conditions, pathologies and have important psycho-social consequences. PEGASO is a multidisciplinary project aimed at promoting healthy lifestyles among teenagers through assistive technology. The core of this project is represented by the ICT system, which allows providing tailored interventions to the users through their smartphones in order to motivate them. The novelty of this approach consists of developing a Virtual Individual Model (VIM) for user characterization, which is based on physical, functional and behavioural parameters opportunely selected by experts. These parameters are digitised and updated thanks to the user monitoring through smartphone; data mining algorithms are applied for the detection of activity and nutrition habits and this information is used to provide personalised feedback. The user interface will be developed using gamified approaches and integrating serious games to effectively promote health literacy and facilitate behaviour change.

Affective interaction in smart environments
Article scientifique ArODES

Maurizio Caon, Leonardo Angelini, Omar Abou Khaled, Denis Lalanne, Yong Yue, Elena Mugellini

Procedia Computer Science,  2014, vol. 32, pp. 1016-1021

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We present a concept where the smart environments of the future will be able to provide ubiquitous affective communication. All the surfaces will become interactive and the furniture will display emotions. In particular, we present a first prototype that allows people to share their emotional states in a natural way. The input will be given through facial expressions and the output will be displayed in a context-aware multimodal way. Two novel output modalities are presented: a robotic painting that applies the concept of affective communication to the informative art and an RGB lamp that represents the emotions remaining in the user's peripheral attention. An observation study has been conducted during an interactive event and we report our preliminary findings in this paper.

2022

Towards an emotionally augmented metaverse :
Conférence ArODES
a framework for recording and analysing physiological data and user behaviour

Leonardo Angellini, Massimo Mecella, Hai-Ning Liang, Danilo Bernardini, Omar Abou Khaled, Elena Mugellini, Maurizio Caon

Proceedings of the 13th Augmented Human International Conference

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Several big tech companies are currently eager of building the metaverse, mainly through virtual reality experiences. Albeit immersive, in shared virtual environments it might be difficult to have emotionally rich interactions. Indeed, current available headsets and VR applications have limited possibilities for tracking and sharing emotions. We believe that physiological signal technology could enhance future metaverse applications. In this context, this paper presents a framework for visualizing, recording and synchronizing experiences in VR with human body signals. In order to prove the effectiveness of the system, we illustrate a use case and the development of a proof-of-concept scenario. Finally, we present the results of the tests conducted on this proof-of-concept that demonstrate the validity of the proposed system. Such framework could be used to design new emotionally augmented experiences in VR.

Etude exploratoire d’un assistant digital d’aide au montage basé sur la projection en réalité augmentée
Conférence ArODES

Simon Ruffieux, Samuel Torche, Maurizio Caon, Omar Abou Khaled

Proceedings of the 33rd Conference on l'Interaction Humain-Machine (IHM'22), 5-8 April 2022, Namur, Belgium

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Cet article présente PMF-Vision, un assistant digital d’aide au montage manuel basé sur le concept de projection d’informations en réalité augmentée sur l’espace de travail. Cet assistant digital vise à assister des opérateurs en situation de handicap mental dans leurs tâches de montage en suivant leurs actions en temps-réel. Dans le cadre de cette recherche, nous avons analysé les algorithmes de suivi des mains basés sur les dernières techniques d’apprentissage profond et mis en valeur le meilleur candidat pour notre contexte en termes de précision et de temps de traitement. Nous présentons différents concepts d’interaction pour le système et proposons d’évaluer deux concepts de visualisation pour assister l’opérateur lors du placement de composants. Les résultats de l’étude exploratoire (N=6) ont permis de mettre en valeur l’excellente utilisabilité du prototype et l’intérêt, exprimé par la population cible, d’utiliser de tels outils dans leurs tâches quotidiennes.

2021

Effect of visual cues on pointing tasks in co-located augmented reality collaboration
Conférence ArODES

Lei Chen, Yilin Liu, Yue Li, Lingyun Yu, BoYu Gao, Maurizio Caon, Yong Yue, Hai-Ning Liang

SUI '21: Symposium on Spatial User Interaction Proceedings

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Résumé:

Visual cues are essential in computer-mediated communication. It is especially important when communication happens in a collabo- ration scenario that requires focusing several users’ attention on a specific object among other similar ones. This paper explores the effect of visual cues on pointing tasks in co-located Augmented Reality (AR) collaboration. A user study (N = 32, 16 pairs) was conducted to compare two types of visual cues: Pointing Line (PL) and Moving Track (MT). Both are head-based visual techniques. Through a series of collaborative pointing tasks on objects with different states (static and dynamic) and density levels (low, medium and high), the results showed that PL was better on task performance and usability, but MT was rated higher on social presence and user preference. Based on our results, some design implications are provided for pointing tasks in co-located AR collaboration.

Seniors’ perception of smart speakers: challenges and opportunities elicited in the Silver&Home Living Lab
Conférence ArODES

Leonardo Angelini, Maurizio Caon, Emmanuel Michielan, Omar Abou Khaled, Elena Mugellini

Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021)

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As the European population is getting older, there is an increasing need in maintaining older adults living independently at home. Vocal assistants may offer various services that can be beneficial for senior citizens. In the context of the Silver&Home living lab, we tested the Google Home Smart speaker connected to smart lighting installation with 7 people to understand the strengths, weaknesses and possible usage for improving the quality of life of older adults. The test and the questions asked to participants were framed according to the Unified Theory on Acceptance and Use of Technology (UTAUT2). Participants generally appreciated the interaction with the smart speaker, although they also identified some barriers, such as the “OK Google” wakeword or the assistant speaking too fast for some answers. Finally, they considered it particularly adapted to people living alone.

Opportunities and challenges of digital technologies for inclusion
Conférence ArODES

Maurizio Caon, Isabella Tiziana Steffan, Alessandra Rinaldi

Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021) : Volume II: Inclusive Design

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Résumé:

Digital technologies are profoundly changing our daily life and our society more in general. This transformation brings new opportunities and challenges also in terms of inclusion. Indeed, some technologies can present barriers in terms of adoption and accessibility; for this reason, it is important to elaborate new methodologies that can guide the design process in order to be more inclusive. At the same time, digital services and products can empower citizens to fight social exclusion, or assist people with disabilities for enabling them to perform activities that they have not been able to do before, or to increase participation of disadvantaged people in social and economic activities. This paper shows the current trends in terms of design applied to digital technologies and highlights the importance and urgency of this topic calling all researchers from academia and industry for action to leverage “design for all” methods in order to increase inclusion in our connected world.

Inclusion design and functionalities of a personalized virtual coach for wellbeing to facilitate a universal access for older adults
Conférence ArODES

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Francesco Carrino, Carlo Emilio Standoli, Paolo Perego, Giuseppe Andreoni, Filippo Palumbo, Alfonso Mastropietro, Omar Abou Khaled, Elena Mugellini

Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021)

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The current research proposes a technological system "NESTORE" designed for and with older adults in four different countries in order to improve and sustain their wellbeing. The system personalized activities and architecture, co-designed interfaces, and its multilingual aspect aim to establish an ‘inclusion’ criterion based on the user’s sociocultural profile and health condition.

A study on the acceptance towards blockchain-based access to biobanks’ services using UTAUT2 with ITM and perceived risk
Conférence ArODES

Francesco Carrino, Omar Abou Khaled, Elena Mugellini, Maurizio Caon

Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021)

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Résumé:

The blockchain technology offers reliability, decentralization, security and credibility. Blockchain solutions can be based on smart contracts and on the use of utility tokens which may represent a utility of a company like limited fashion items, cars, car parts or even human biological samples stored in biobanks. However, decentralization comes with responsibilities: people must take care of storing those tokens in a safe place (commonly denominated as “wallets”) knowing that losing a wallet or wallet key means losing the owned tokens. This concept is still new to people and might sound scary. The success of such services relies on the extent of customers intending to adopt them and very few studies target this intention. The current research proposes a model combining of the unified theory of acceptance and usage of technology (UTAUT2) with the initial trust model (ITM) and the perceived risk construct in order to evaluate the factors affecting the behaviour and use intention of people towards a blockchain technology that enables access to biobank services. An online questionnaire was built and sent to swiss university students. The 72 results showed that simplifying the access to blockchain-based technologies will facilitate inclusion, enabling people with lower digital literacy to access these technologies.

2020

An embodied and ubiquitous e-coach for accompanying older adults towards a better lifestyle
Conférence ArODES

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Denis Lalanne, Omar Abou Khaled, Elena Mugellini

Human-computer Interaction : human values and quality of life : thematic area, HCI 2020, held as part of the 22nd International Conference, HCII 2020, Copenhagen, Denmark, July 19–24, 2020, proceedings, part III

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Résumé:

The population of people age 65 or over is increasing especially inEurope [3]. Granting to this target population a longer and healthier life isparamount for the European Community. In the context of the H2020 EUfunded project“NESTORE”[11], an embodied and ubiquitous e-coach is beingdeveloped seeking to change the lifestyle of seniors in different domains ofwellbeing. NESTORE e-coach is known as a personalized embodied andubiquitous e-coach that plays three essential roles in elderly’s wellbeing: acoach, a friend and a companion. As a coach, NESTORE will give trainings andadvice following a wellbeing path that is proposed by experts in wellbeing. As afriend, this e-coach knows and understands the user. As a companion, this e-coach has the ability to detect the user’s emotion and aims at building empathywith the user based by providing support throughout their daily training.The NESTORE e-coach is based on three different intervention medium: amobile application, a chatbot and an embodied vocal assistant. These interfaceshave different forms, different capabilities and different visions. Users cancommunicate with the NESTORE e-coach through different interfaces exclu-sively, sequentially, concurrently and synergistically. The interaction can beinitiated from the user side to different interfaces and/or from the e-coach side.In this paper, we present the NESTORE’s full vision for building the threeessential roles of this e-coach which are: a coach, a companion and a friend forseniors. Furthermore, we explain the NESTORE system design, architecture,capabilities and how the different interfaces of this E-coach contribute to make amulti-modal system. Finally, we conclude our work with the state of this H2020project.

Comparing the ergonomics of gestural interfaces while running on a treadmill
Conférence ArODES

Matthieu Vallat, Alessandro Silacci, Omar Abou Khaled, Elena Mugellini, Giuseppe Fedele, Maurizio Caon

Advances in physical, social & occupational ergonomics : Proceedings of the AHFE 2020 Virtual Conferences on Physical Ergonomics and Human Factors, Social & Occupational Ergonomics and Cross-Cultural Decision Making, July 16–20, 2020, USA

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Résumé:

Interactions with treadmills are based on pressing buttons or through a touchscreen. However, these interactions require the user to touch the frontal dashboard of the treadmill while running. Indeed, for each interaction that the runner does, the user needs to break her/his running form to reach the interface. Those actions cost also some additional energy to the runner with a possible impact on performance. Current technologies allow finding a better solution for the runner like gesture-based interaction. This paper presents a comparison of different interaction modalities, including gestures, on a treadmill. The goal of this study is to analyze the ergonomics of gestural interfaces while running on a treadmill. In fact, specific tailored gestures are perceived as more natural and easier to perform while doing an activity and can improve significantly the user experience.

NESTORE
Conférence ArODES

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Omar Abou Khaled, Elena Mugellini, Nick Dulack, Paul Chamberlin, Claire Craig, Giuseppe Andreoni

Proceedings of the 2nd Conference on Conversational User Interfaces (CUI'20), 9-10 July, Bilbao, Spain

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Résumé:

Conversational agents are becoming widespread thanks to the development of natural language processing and deep learning techniques. NESTORE is a virtual coach designed to support seniors during their journey to wellbeing. This virtual coach interacts with the user through two different type of conversational agents: a text-based chatbot integrated in a mobile application and a tangible coach, which is a physical object based on vocal interaction and tangible interaction. This paper presents the design of each conversational agent interface developed to support seniors in enhancing their wellbeing. A cloud conversational agent manages the user interaction with the NESTORE virtual coach, which can occur through interfaces with different design, forms and capabilities, i.e., the chatbot and the tangible coach: two different intelligent interfaces with a shared mind.

Digitalization of the last mile of a humanitarian supply chain
Conférence ArODES

Maurizio Caon, Omar Abou Khaled, Paul Vaucher, Dany Mezher, George Mc Guire

Proceedings of the 2nd International Conference on Human Interaction and Emerging Technologies: Future Applications (IHIET – AI 2020)

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Résumé:

The digitalization of humanitarian supply chains allows overcoming one of the greatest difficulties faced by NGOs and governments in managing health equipment in crisis situations: the visibility of stocks and consumption at the end of the chain. This paper presents the design process of the health equipment inventory management system developed to support the humanitarian crisis related to the Syrian refugees in Lebanon. The prototype was tested at the pharmacy of the ICRC Weapon-wounded Trauma and Training Centre in Tripoli, Lebanon, where it was demonstrated to be easy to use and able to facilitate the work related to the management of medicament stocks and orders.

Enriching the user experience of a connected car with quantified self
Conférence ArODES

Maurizio Caon, Marc Demierre, Omar Abou Khaled, Elena Mugellini, Pierre Delaigue

Proceedings of the 3rd International Conference on Intelligent Human Systems Integration (IHSI 2020)

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Résumé:

This paper presents the R’SENS project, the design for a system leveraging the Internet of Things to connect the dots between the user, her car and her environment through the integration of tools belonging to different domains, such as the connected car, the quantified self and web services. The aim of this study is to test a concept through a prototype to explore the possibility of enhancing the user experience of a connected car through the opportune and ubiquitous display of relevant information not only about the car status and the environment, but also the physical status of the driver. The integration of three different user interfaces (i.e., wearable, smartphone and infotainment system) to be used in different moments played a crucial role in the preliminary evaluation of the perceived usefulness and usability of this proof-of-concept.

2019

Desigining an e-coach to tailor training plans for road cyclists
Conférence ArODES

Alessandro Silacci, Omar Abou Khaled, Elena Mugellini, Maurizio Caon

Proceedings of 3rd International Conference on Human Systems Engineering and Design: Future Trends and Applications (IHSED 2019), 16-18 September 2019, Munich, Germany

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Résumé:

Athletes seek to constantly improve their performances pushing their limits and overwork is often the direct consequence of this behavior. This is not a common problem for professionals, who usually are followed by a coach, but it is a growing phenomenon in amateur sports, which drives people to get injured because of overtraining or incorrect movements. Meantime, advances in artificial intelligence enabled the creation of new tools increasingly capable of understanding the complexity of our world. We therefore propose a novel e-coaching system for road cycling athletes, able to automatically follow and tailor their training plans. This paper describes the design of the machine learning algorithm, its model based on reinforcement learning and the metrics that were adopted for the scoring system. Finally, we report our tests, which show that the virtual coach already can compete with human experts in making a proper personalized training plan.

Designing systems for the digital immortality of intangible cultural heritage
Conférence ArODES

Maurizio Caon

Proceedings of International Conference on Human Interaction and Emerging Technologies (IHIET 2019)

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Résumé:

Digital curation of cultural heritage is an urgent and important matter for our society, which is becoming more and more digitized. In particular, preserving intangible cultural heritage requires novel solutions that can enable transmitting all the nuances of values and identity linked to different traditions and communities. The current development of digital copies of human beings, which promises the achievement of digital immortality in the near future, can allow our posterity to experience traditional events or create new artistic performances with deceased people that, otherwise, could not be lived and, therefore, understood.

The antecedents and outcomes of AI adoption in SMEs
Conférence ArODES

Patrick Schueffel, Rico Baldegger, David Buenzli, Maurizio Caon

Proceedings of 2019 International Council for Small Business World Congress

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A decision support system to propose coaching plans for seniors
Conférence ArODES

Paula Subias-Beltran, Silvia Orte, Eloisa Vargiu, Filippo Palumbo, Leonardo Angelini, Omar Abou Khaled, Elena Mugellini, Maurizio Caon

Proceedings of the 32nd IEEE CBMS International Symposium on Computer-Based Medical Systems

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Résumé:

This paper presents the decision support system that has been defined and developed under the umbrella of the NESTORE project. The main goal of the proposed system is to help users in selecting coaching plans by proposing personalised recommendations based on their behaviours and preferences. Recognising such behaviours and their evolution over time is therefore a crucial element for tailoring the interaction of the system with the user. A three-layer system composed of pathways, coaching activity plans, and coaching events, constitutes the so-called coaching timeline on which the analysis is grounded. Various techniques are used to model and personalise the recommendations and feedback. Firstly, the indicators are extracted from disparate data sources, then these are modelled through a profiling system and, finally, recommendations on the pathways and coaching plans are performed through a scoring and a tagging system.

2018

Ubiquitous Chatbots :
Conférence ArODES
workshop on wearable and embodied conversational agents

Leonardo Angelini, Maurizio Caon, Jacky Casas, Frederica Cena, Amon Rapp, Omar Abou Khaled, Elena Mugellini

Proceedings of ACM International Symposium on Wearble Computers (ISWC'18), Ubicomp 2018, 8-12 October 2018, Singapore

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Résumé:

Human-computer interaction is progressively shifting towards natural language communication, determining the rise of conversational agents. In the context of ubiquitous computing, the opportunities for interacting with new services and systems in a conversational manner are increasing and, nowadays, it is common to talk to home assistants to interact with a smart environment or to write to chatbots to access an online service. This workshop aims at bringing together researchers from academia and industry in order to establish a multidisciplinary community interested in discovering and exploring the challenges and opportunities coming from the ubiquity of conversational agents.

Towards the NESTORE e-Coach :
Conférence ArODES
a tangible and embodied conversational agent for older adults

Mira El Kamali, Leonardo Angelini, Maurizio Caon, Giuseppe Andreoni, Omar Abou Khaled, Elena Mugellini

Proceedings of ACM International Symposium on Wearble Computers (ISWC'18), Ubicomp 2018, 8-12 October 2018, Singapore

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Résumé:

The ability to engage the user in a conversation and the credibility of the system are two fundamental characteristics of virtual coaches. In this paper, we present the architecture of a conversational e-coach for promoting healthy lifestyles in older age, developed in the context of the NESTORE H2020 EU project. The proposed system allows multiple access points to a conversational agent via different interaction modalities: a tangible companion that embodies the virtual coach will leverage voice and other non-verbal cues in the domestic environment, while a mobile app will integrate a text-based chat for a ubiquitous intervention. In both cases, the conversational agent will deliver personalized interventions based on behavior change models and will promote trust by means of emotionally rich conversations.

A personalised virtual coach to counteract ageing decline :
Conférence ArODES
the H2020 NESTORE project

Maria Renata Guarneri, Alfonso Mastropietro, Maurizio Caon, Laura Fernandez Maldonado, Francesco Furfari, Giuseppe Andreoni, Giovanna Rizzo

Proceedings of ForItAAL 2018

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Résumé:

Ageing population is growing faster in EU. ICT can provide solutions for Active Ageing; however, the success of novel ICT solutions depends on the user perception about their efficacy to support toward health promotion and global wellness. In this context, the H2020 project NESTORE (Non-intrusive Empower-ing Solutions and Technologies for Older people to Retain Everyday life activity) will develop an innovative, multidimensional, personalised coaching system to support healthy ageing by: 1) Generating and sustaining motivation to take care of health; 2) Suggesting healthy nutrition and personalised physical and mental coach, as well as social interaction, to prevent decline and preserve wellbeing. NESTORE started in September 2017 and will last three years. It involves 16 partners from 7 European countries.

Teenagers' usage of a mobile-wearable-cloud platform to promote healthy lifestyles :
Conférence ArODES
the PEGASO experience

Maurizio Caon, Stefano Carrion, Leonardo Angelini, Omar Abou Khaled, Elena Mugellini, Filip Velickovski, Giuseppe Andreoni

Proceedings of the 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'18)

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Résumé:

In contemporary society, non-communicable diseases linked to unhealthy lifestyles, such as obesity, are on the rise with a major impact on global deaths. Prevention is the new frontier, promising to increase life expectancy and quality, while reducing costs related to healthcare. The PEGASO project developed a mobile ecosystem where the digital Companion aims at empowering teenagers in the adoption of healthy lifestyles. The pilot study conducted in three European countries (Spain, UK and Italy) shows a good acceptance of the system and that teenagers are keen to use mobile technology to improve their lifestyle, although wearable devices did not engage the young users

Towards multisensory storming
Conférence ArODES

Maurizio Caon, Leonardo Angelini, Omar Abou Khaled, Elena Mugellini, Assunta Matassa

Proceedings of Designing Interactive Systems (DIS), 9-13 June 2018, Hong Kong, China

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Résumé:

Current digital system interfaces are mainly based on vision and hearing. HCI practitioners and researchers need to introduce unconventional senses in interaction design in order to avoid sensory deprivation in digital life and enhance information accessibility. In this paper, we present a novel technique, called Multisensory Storming, which aims at supporting the multisensory interaction design process. Multisensory Storming is a group method enabling the generation of new ideas and design proposals in physical contexts through exercises that allow exploring all the human senses.

Designing systems in the digital immortality era
Conférence ArODES

Maurizio Caon

Proceedings of DIS 2018

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Résumé:

Society is undergoing a relentless digital transformation process. This process is creating a digital copy of every entity present in the physical world and these digital goods will be inherited through centuries establishing a direct link between distant generations. Advances in artificial intelligence make the promise for future whole brain emulation enabling the possibility of uploading the human mind on a digital system. This would enable the possibility of interacting with immortal digital clones of deceased people. This paper wants to start investigating the consequences of the emergence of the concept of digital immortality.

Ethics by design :
Conférence ArODES
necessity or curse?

Virginia Dignum, Matteo Baldoni, Cristina Baroglio, Maurizio Caon, et al.

Proceedings of the AAAI / ACM Conference on Artificial Intelligence, Ethics and Society

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Résumé:

Ethics by Design concerns the methods, algorithms and tools needed to endow autonomous agents with the capability to reason about the ethical aspects of their decisions, and the methods, tools and formalisms to guarantee that an agent’s behavior remains within given moral bounds. In this context some questions arise: How and to what extent can agents un-derstand the social reality in which they operate, and the other intelligences (AI, animals and humans) with which they co-exist? What are the ethical concerns in the emerging new forms of society, and how do we ensure the human dimen-sion is upheld in interactions and decisions by autonomous agents?. But overall, the central question is: “Can we, and should we, build ethically-aware agents?”

2017

A mobile serious game fostering healthy eating habits
Conférence ArODES

Stefano Carrino, Maurizio Caon, Elena Mugellini

Proceedings of the 2nd Gamification & Serious Games Symposium (GSGS 17), 30 June-1 July 2017, Neuchâtel, Switzerland

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Investigating how to measure mobile user engagement
Conférence ArODES

Stefano Carrino, Maurizio Caon, Omar Abou Khaled, Elena Mugellini

Proceedings of the 6th International Conference Mobihealth 2016, "Wireless Mobile Communication and Healthcare", 14-16 November 2016, Milan, Italy

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Résumé:

User Engagement is a keyword employed by software companies, researchers, and developers designing user-centred applications. Indeed, designing digital experiences to engage users is a goal that is becoming increasingly important for several disciplines such as education, marketing, information systems, and much more. Since opinions concerning the definition of user engagement greatly vary, the question comes up whether it is possible to provide a universal set of metrics to equally measure the engagement in any kind of application and in mobile applications in particular. Starting from results in the literature, this paper provides a simple definition of user engagement and a related set of metrics. Such metrics will be evaluated in a pilot study with more than 300 teenagers in four European countries.

PEGASO companion :
Conférence ArODES
a mobile app to promote healthy lifestyles among adolescents

Maurizio Caon, Stefano Carrino, Laura Condon, Antonio Ascolese, Sara Facchinetti, Marco Mazzola, Paolo Perego, Filip Velickovski, Giuseppe Andreoni, Elena Mugellini

Proceedings of the 6th International Conference Mobihealth 2016, "Wireless Mobile Communication and Healthcare", 14-16 November 2016, Milan, Italy

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Résumé:

Promoting healthy lifestyles can be a successful weapon in counter-fighting the epidemics of overweight and obesity. The PEGASO project aims at encouraging adolescents to become co-creators of their own health. In particular, it aims at creating an ecosystem where adolescents are motivated and supported in adopting healthy lifestyles. In this ecosystem, the PEGASO Companion, a smartphone app, plays the role of universal access to healthy services and providing personalised mechanisms to support behaviour change.

2016

Nautilus :
Conférence ArODES
real-time interaction between dancers and augmented reality with pixel-cloud avatars

Andreas Fischer, Pascal Buchs, Maurizio Caon, Omar Abou Khaled, Elena Mugellini, Sara Grimm, Franziska Meyer, Claudia Wagner, Valentine Bernasconi, Angelika Garz

Actes de la 28ième conférence francophone sur l’Interaction Homme-Machine (IHM'16), 25-28 octobre 2016, Fribourg, Suisse

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Résumé:

L'interaction en temps réel avec la réalité augmentée re-présente un nouveau matériel avec lequel les danseurs et chorégraphes peuvent travailler pour leurs spectacles. Cela permet aux danseurs d'aller au-delà de la seule syn-chronisation entre musique et mouvement et amène de nouvelles opportunités comme modifier l'environnement audio-visuel et de réagir à ses changements. Dans cet article, nous présentons le processus et le résultat d'un travail collaboratif entre art et technologie, lequel a per- mis d’explorer ce nouveau matériel dans le cadre du spec- tacle Nautilus. Nous suggérons une approche basée sur le tracking des corps par caméra 3D et sur des avatars com- posés de nuages de pixels ; cette approche permet aux danseurs d’interagir de manière fiable avec la réalité augmentée en gardant la liberté de mouvements.

Comparing gesture, speech and touch interaction modalities for in-vehicle infotainment systems
Conférence ArODES

Leonardo Angelini, Jürgen Baumgartner, Francesco Carrino, Stefano Carrino, Maurizio Caon, Omar Abou Khaled, Jürgen Sauer, Denis Lalanne, Elena Mugellini, Andreas Sonderegger

Actes de la 28e conférence francophone sur l'Interaction Homme-Machine on - IHM '16, 25-28 octobre 2016, Fribourg, Suisse

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Résumé:

This paper compares an emergent interaction modality for the In-Vehicle Infotainment System (IVIS), i.e., gesturing on the steering wheel, with two more popular modalities in modern cars: touch in the central dashboard and speech. We conducted a between-subjects experiment with 20 participants for each modality to assess the interaction performance with the IVIS and the impact on the driving performance. Moreover, we compared the three modalities in terms of usability, subjective workload and emotional response. The results showed no statically significant differences between the three interaction modalities regarding the various indicators for the driving task performance, while significant differences were found in measures of IVIS interaction performance: users performed less interactions to complete the secondary tasks with the speech modality, while, in average, a lower task completion time was registered with the touch modality. The three interfaces were comparable in terms of perceived usability, mental workload and emotional response.

Third workshop on full-body and multisensory experience
Conférence ArODES

Maurizio Caon, Leonardo Angelini, Elena Mugellini, Assunta Matassa, Nadia Bianchi-Berthouze, Aneesha Singh, Ana Tajadura-Jiménez

Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct, UbiComp '16, 12-16 September 2016, Heidelberg, Germany

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Résumé:

The workshop on "Full-Body and Multisensory Experience" aims at discussing the rich possibilities that the body offers to experience the external world and the prospects that arise for interaction designers when these often-neglected abilities are taken into account. In particular, the workshop will focus on the rediscovery of the human senses, either alone or in a multimodal combination, and of the perceptual-motor abilities of our body. The one-day workshop is divided in three steps: first phase is for the generation of ideas on multisensory interfaces, in the second phase, participants will have the possibilities to explore and rediscover their sensorimotor abilities through several exercises and games; in the third and last phase, there will be a further creative session in order to evaluate how the full body and multisensory activities have fostered people's creative processes. The aim of the whole experience is twofold: first, inspiring participants in designing novel concepts for multisensory interfaces; second, providing a preliminary study on the effect of these exercises in fostering creativity and supporting the design process of multisensory interfaces.

Multi-sensory EmotiPlant :
Conférence ArODES
multimodal interaction with augmented plants

Leonardo Angelini, Maurizio Caon, Stefania Caparrota, Omar Abou Khaled, Elena Mugellini

Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct, UbiComp '16, 12-16 September 2016, Heidelberg, Germany

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Résumé:

Plants are live beings with often underestimated sensory and communicative abilities. In this paper, we sensitize to these natural abilities and we show how they can be extended through technology. To these purpose, we propose a framework for multisensory augmented plants and we present the design of three different augmented plants that are able to communicate with humans through different modalities. The three systems aim at bridging the communication gap between plants and humans, with a particular focus on cognitive or sensory impaired people.

Tangible interaction with light in the IoT
Conférence ArODES

Maurizio Caon, Leonardo Angelini, Omar Abou Khaled, Dzmitry Aliakseyeu, Jon Mason, Elena Mugellini

Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct, UbiComp '16, 12-16 September 2016, Heidelberg, Germany

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Résumé:

Interacting with digital lighting systems opens new opportunities and challenges, especially when those systems are connected to the Internet of Things (IoT). This workshop aims at investigating richer interactions with interconnected lights. We strive for interactions that happen in our everyday environments and that go beyond not only swiping and tapping on a screen, but also the mere tangible switch. This workshop will be an opportunity to discuss and practice novel interactions with light, exploring human bodily and cognitive skills to grasp better the ephemerality of light and of the IoT.

Designing a mobile serious game to promote healthy lifestyles :
Conférence ArODES
motivating teenagers to adopt healthy habits through play

Stefano Carrino, Maurizio Caon, Elena Mugellini, Ian Dunwell, Dalia Morosini

Proceedings of the 8th International Conference on eHealth, Telemedicine, and Social Medicine (eTELEMED 2016), 24-28 April 2016, Venice, Italy

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Résumé:

Behaviours such as diet, sedentariness and how much exercise we do play a major role in influencing health and wellbeing. As a medium, mobile serious games have the potential to educate and foster behaviour change whilst engaging and motivating users. This paper illustrates the user-centred design approach used to develop a mobile serious game to promote healthy lifestyles. In particular, this research, developed in the frame of the PEGASO European project, focuses on teenagers and healthy behaviours linked to the prevention of obesity. In this approach, teenagers from different European countries (Italy, Spain, and United Kingdom) participate to the co-design of the serious game. This activity is still ongoing but first findings show encouraging feedback concerning the generic game mechanics and the designed game.

We are super-humans :
Conférence ArODES
towards a democratisation of the socio-ethical debate on augmented humanity

Maurizio Caon, Vincent Menuz, Johann, A. R. Roduit

Proceedings of the 7th Augmented Human International Conference 2016 (AH'16), 25-27 February 2016, Geneva, Switzerland

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Résumé:

Research in human enhancement technologies (e.g., nanotechnology, genetic engineering, robotics et cetera) is exploding bringing unforeseen solutions that will expand human capabilities further. Therefore, new socio-ethical issues need to be continuously addressed. In this scenario, we argue that a revolution in addressing these issues is needed and that we should enable a democratic process to cause broader reflections on the future augmented humanity. We will present the SuperHumains.ch project as an example of educational and collaborative thinking on the future of human enhancement.

Second workshop on full-body and multisensory experience
Conférence ArODES

Assunta Matassa, Leonardo Angelini, Maurizio Caon, Marianna Obrist, Elena Mugellini

Proceedings of the TEI '16 Tenth International Conference on Tangible, Embedded, and Embodied Interaction, 14-17 February 2016, Eindhoven, The Netherlands

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Résumé:

This workshop aims at discussing the rich possibilities that the body offers to experience the external world and the prospects that arise for interaction designers when these often-neglected abilities are taken into account. In particular, the workshop will focus on the rediscovery of the five senses, either alone or in a multimodal combination, and of the perceptual-motor abilities of our body. The one-day workshop is divided in two steps: first, participants will have the possibility to briefly present and discuss with the other attendees their research. Workshop candidates are requested to send a position paper, including a short biography and detailing their research interests and background. Second, participants will have the possibilities to explore and rediscover their sensorimotor abilities through several exercises and games abilities using a critical design approach. Interdisciplinary groups will be challenged to design and develop new interaction experience concepts using our natural 'tools' as prototyping tools.

2015

The multisensory interactive window :
Conférence ArODES
immersive experiences for the elderly

Leonardo Angelini, Maurizio Caon, Nadine Couture, Omar Abou Khaled, Elena Mugellini

Proceedings of UBICOMP/ISWC '15 ADJUNCT, 7-11 September 2015, Osaka, Japan

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Résumé:

This paper presents the Multisensory Interactive Window, a system that allows experiencing distant places and communicating with distant people through a tangible installation that exploits the window metaphor and multisensory feedback. Thanks to the feeling of being just in front of a natural landscape or a room inhabited by a beloved person, we strive to enhance the older adult's well-being at home. We illustrate two interaction concepts and a feasibility study for the implementation of the first prototype.

Workshop on full-body and multisensory experience in ubiquitous interaction
Conférence ArODES

Assunta Matassa, Luca Console, Leonardo Angelini, Maurizio Caon, Omar Abou Khaled

Proceedings of UBICOMP/ISWC '15 ADJUNCT, 7-11 September 2015, Osaka, Japan

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Résumé:

The ubiquitous computing era is bringing to the human the possibility to interact always and everywhere with digital information. However, the interaction means used to access this information exploit only few of the human sensorimotor abilities. Most of these interactions happen through traditional desktop or mobile interfaces, which often involve just vision and hearing senses and require the movement of only one finger. The aim of this workshop is rediscovering the role of human body and senses, focusing on abilities that are often forgotten by the HCI designers, in order to provide new body experiences through the design of novel interactions in smart environments. The focus of this workshop will go beyond the mere design of multimodal interfaces and will exploit theories of embodied cognition to design new full-body experiences to explore ambient space and, more in general, the environment.

Smart garments and accessories for healthy lifestyles
Conférence ArODES

Maurizio Caon, Stefano Carrino, Elena Mugellini, Alexandra Rosewall Lang, Sarah Atkinson, Giuseppe Andreoni

Proceedings of UBICOMP/ISWC '15 ADJUNCT, 7-11 September 2015, Osaka, Japan

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Résumé:

Wearable devices are trying to conquer the market and to enter the users’ daily life. However, wearables show their limits when creating long-term engagement, which is crucial for helping the users to build healthy lifestyles that can accompany them during their lives. The main goal of this workshop is to bring together researchers and practitioners that can contribute with their expertise in creating common guidelines for the design of wearable devices.

Towards an engaging mobile food record for teenagers
Conférence ArODES

Maurizio Caon, Stefano Carrino, Federica Prinelli, Valentina Ciociola, Fulvio Adorni, Claudio Lafortuna, Sarah Tabozzi, José Serrano, Laura Condon, Omar Abou Khaled, Elena Mugellini

Proceedings of 18th International Conference on Image Analysis and Processing, ICIAP 2015: New Trends in Image Analysis and processing - ICIAP 2015 Worshops, 7-11 September 2015, Genova, Italy

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Résumé:

In the frame of the PEGASO European project, we aim at promoting healthier lifestyles among teenagers focusing on the alimentary education and physical activity. This paper presents a novel concept of mobile food record developed following a multidisciplinary approach to innovate both the monitoring and the user experience. This mobile food record does not count calories but is focused on tracking dietary patterns and support the adoption of target behaviours. Moreover, the introduction of game mechanics developed through participatory design techniques aims at sustaining engagement in the long term.

Engaging community for participatory design
Conférence ArODES

Maurizio Caon

Proceedings of the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'15), 25-29 August 2015, Milan, Italy

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Résumé:

This paper illustrates an overview of the benefits provided by the practice of participatory design with special regard to the engagement of communities in the context of health promotion, as showed with the PEGASO experience.

A smartphone application to promote affective interaction and mental health
Conférence ArODES

Maurizio Caon, Leonardo Angelini, Stefano Carrino, Omar Abou Khaled, Elena Mugellini

Proceedings of the 17th International Conference on Human-Computer Interaction, HCI 2015: Human-Computer Interaction: Design and Evaluation, 2-7 August 2015, Los Angeles, CA, USA

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Résumé:

In this paper, we describe a smartphone application that aims at motivating users to use facial expressions. This has a twofold goal: to reintroduce the use of facial expressions as nonverbal means in the computer-mediated communication of emotions and to provide the opportunity for self-reflection about the personal emotional states while fostering smiles in order to improve mental wellbeing. This paper provides a description of the developed prototype and reports the results of a first observation study conducted during an interactive event.

Towards an anthropomorphic lamp for affective interaction
Conférence ArODES

Leonardo Angelini, Omar Abou Khaled, Maurizio Caon, Elena Mugellini, Denis Lalanne

Proceedings of the Ninth International Conference on Tangible, Embedded, and Embodied Interaction (TEI '15), 15-19 January 2015, Stanford, CA, USA

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Résumé:

This paper presents the concept of a lamp that allows displaying and collecting user’s emotional states. In particular, it displays the emotional information changing colors and facial expressions; in fact, the lamp is characterized by anthropomorphic form and behavior in order to make the interaction more natural and spontaneous. The user can interact with the lamp through tangible gestures typically used in social interactions by humans. Two different scenarios involving the use of the lamp as a companion and for computer-mediated communication are presented.

2014

Une lampe anthropomorphique pour la communication des émotions
Conférence ArODES

Leonardo Angelini, Omar Abou Khaled, Maurizio Caon, Elena Mugellini, Denis Lalanne

Actes de la conférence IHM'14, 28-31 octobre 2014, Villeneuve d'Ascq, France

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Résumé:

Cet article présente la conception d’une lampe qui permet d’afficher et récolter des états émotionnels de l’utilisateur au travers d’interactions multimodales, basées sur des gestes tangibles du côté utilisateur, et des couleurs et des expressions faciales du côté lampe. En particulier, la lampe bénéfice d’une forme et d’un comportement anthropomorphiques pour rendre l’interaction plus naturelle et spontanée. Deux scénarios d’utilisation sont présentés, ainsi que l’implémentation de l’un d’eux.

Atelier of smart garments and accessories :
Conférence ArODES
second edition

Maurizio Caon, Elena Mugellini, Paolo Perego, Giuseppe Andreoni

Proceedings of the 2014 ACM International Symposium on Wearable Computers: Adjunct Program, ISWC '14 Adjunct, 13-17 September 2014, Seattle, WA, USA

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Résumé:

Technology is actually weaving itself into 'the fabric of everyday life' (as predicted by Weiser). Nowadays, computational systems can be embedded in garments or body accessory, such as clothes, shirts, eyeglasses, bracelets and watches. This new technological revolution is deeply changing the human life and society. The Atelier of Smart Garments and Accessories workshop aims to bring together researchers from the academia and the industry in order to establish a multidisciplinary community interested in discovering and exploring the challenges and opportunities coming from this technological revolution.

Wearable technologies for automotive user interfaces
Conférence ArODES

Maurizio Caon, Michele Tagliabue, Leonardo Angelini, Paolo Perego, Elena Mugellini, Giuseppe Andreoni

Proceedings of the AutomotiveUI '14: Adjunct Proceedings of the 6th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 17-19 September 2014, Sattle, WA, USA

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Résumé:

Wearable technologies are spreading into human's everyday life. Smart bracelets, watches and glasses promise to provide us with ready-at-hand access to several information and interaction possibilities. What happens when these technologies enter the car? Are they a mere danger or can also offer information and interaction opportunities that can improve the vehicle inhabitants' user experience and safety? This workshop aims to discuss all the opportunities and dangers that such technologies not only are already bringing in nowadays vehicles, but could also bring in future semi-autonomous and autonomous vehicles.

Gesturing on the steering wheel :
Conférence ArODES
a user-elicited taxonomy

Leonardo Angelini, Frnacesco Carrino, Stefano Carrino, Maurizio Caon, Omar Abou Khaled, Jürgen Baumgartner, Andreas Sonderegger, Denis Lalanne, Elena Mugellini

Proceedings of the 6th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, AutomotiveUI '14, 17-19 September 2014, Seattle, WA, USA

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Résumé:

"Eyes on the road, hands on the wheel" is a crucial principle to be taken into account designing interactions for current in-vehicle interfaces. Gesture interaction is a promising modality that can be implemented following this principle in order to reduce driver distraction and increase safety. We present the results of a user elicitation for gestures performed on the surface of the steering wheel. We asked to 40 participants to elicit 6 gestures, for a total of 240 gestures. Based on the results of this experience, we derived a taxonomy of gestures performed on the steering wheel. The analysis of the results offers useful suggestions for the design of in-vehicle gestural interfaces based on this approach.

Hugginess :
Conférence ArODES
encouraging interpersonal touch through smart clothes

Leonardo Angelini, Omar Abou Khaled, Maurizio Caon, Elena Mugellini, Denis Lalanne

Proceedings of the 2014 ACM International Symposium on Wearable Computers: Adjunct Program, ISWC '14 Adjunct, 13-17 September 2014, Seattle, WA, USA

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Résumé:

Physical contact has an important role in human well-being. In this paper, we present Hugginess, a concept of interactive system that encourages people to hug by augmenting this gesture with digital information exchange. As a proof of concept, we developed two t-shirts that reciprocally send information to the hugged person through the conductive fabric.

Tailoring motivational mechanisms to engage teenagers in healthy life-style :
Conférence ArODES
a concept

Maurizio Caon, Stefano Carrino, Claudio L. Lafortuna, José C. E. Serrano, Neil S. Coulson, Marco Sacco, Omar Abou Khaled, Elena Mugellini

Proceedings of the 5th International Conference on Applied Human Factors and Ergonomics 2014, 19-23 July 2014, Kracow, Poland

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Résumé:

Overweight and obesity are the first leading risk related to nutrition for global deaths, in the last few years it outranked the famine. Obesity increases the risk of several debilitating, and deadly diseases, including diabetes, heart disease, and some cancers. Due to the many health risks associated with obesity, the financial burden that the treatment of this disease exercises on the European healthcare system is enormous. For this reason, the best strategy relies in prevention. In particular, the pervasiveness of technology can leverage an important advantage for the promotion of healthy behaviors in the new generations. This paper introduces PEGASO, a technological multidisciplinary project funded by the European Commission that aims at creating an ecosystem that can enable teenagers to adopt healthy habits leading to a healthy life-style. The ICT system plays an important role in the PEGASO ecosystem. This behavior change support system integrates a Virtual Individual Model that allows characterizing the physiological status, physical condition and the psychological status for each user. This allows the elaboration of tailored interventions aiming at promoting the adoption of healthy habits by the users. This paper describes this concept introducing the Virtual Individual Model and discusses the possible interventions related to the promotion of physical exercise and of healthy dietary habits. At the end of the paper, some indications about the future development of the PEGASO project are provided.

PEGASO :
Conférence ArODES
towards a life companion

Stefano Carrino, Maurizio Caon, Omar Abou Khaled, Giuseppe Andreoni, Elena Mugellini

Proceedings of the 5th International Conference, DHM 2014, Held as Part of HCI International 2014, 22-27 June 2014, Heraklion, Crete, Greece

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Résumé:

In the frame of the PEGASO European project, we aim at promoting healthier lifestyles focusing on the alimentary education and physical activity. This paper presents the concept of health companion as the main tool to inform and push the user towards a healthier lifestyle. This companion is an advanced interface that assists and entertains the user, providing him an adequate knowledge about alimentary and physical education. The companion is based on a knowledge model of the user and its behavior; it is composed of three main facets: is tailored to the user, is based on affective design and is designed to be a life companion.

A persuasive system for obesity prevention in teenagers :
Conférence ArODES
a concept

Maurizio Caon, Stefano Carrino, Renata Guarnieri, Giuseppe Andreoni, Claudio L. Lafortuna, Omar Abou Khaled, Elena Mugellini

Proceedings of the 2nd International Workshop on Behavior Change Support Systems co-located with the 9th International Conference on Persuasive Technology (PERSUASIVE 2014), 22 May 2014, Padua, Italy

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Résumé:

In the frame of the PEGASO European project, we aim at creating an ecosystem that enables teenagers to easily adopt a healthy lifestyle. In this ecosystem, the persuasive ICT system plays a key role in motivating users to build healthy habits. The persuasive system is based on mobile technologies and provides tailored motivational mechanisms based on the information provided by the virtual individual model.

Towards individualised persuasive technology for obesity prevention in teenagers
Conférence ArODES

Claudio L. Lafortuna, Maurizio Caon, Sarah H. Tabozzi, Stefano Carrino, Neil S. Coulson, José C. E. Serrano, Marco Sacco, Omar Abou Khaled, Giovanna Rizzo

Proceedings of the International Conference on Health Informatics, 3-6 March 2014, Angers, Loire Valley, France

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Résumé:

Obesity is a major clinical problem for individuals and health care systems worldwide, alarmingly fuelled by body mass excess in the juvenile age. In spite of its multi-factorial origin, unhealthy lifestyles relative to alimentary behaviours and physical activity habits play a major causative role. Thus, an important preventive action of this condition can be conducted by fostering motivation of young people towards healthy lifestyles through engagement and inclusion. ICT technologies offer a powerful tool to address effectively this serious medical and societal issue by the development of persuasive strategies based on an accurate modelling of individual's characteristics. PEGASO is a technological multidisciplinary project aimed at promoting healthy lifestyles among teenagers, through assistive technology enhancing motivation to healthy lifestyles, empowered by a virtual individual model (VIM) for user characterisation. The VIM intended for the PEGASO project, including functional, physical and psychosocial aspects profiling young individuals' health status and behaviours relevant in alimentary and physical activity domain, will enable the development of an individualised assistive technology expected to leverage motivation to healthy lifestyles through implicit and explicit interaction.

2013

Ubiquitous Interaction for Computer Mediated Communication of Emotions
Conférence ArODES

Maurizio Caon, Omar Abou Khaled, Elena Mugellini, Denis Lalanne, Leonardo Angelini

Proceedings of the 2013 Humaine Association Conference on Affective Computing and Intelligent Interaction, 2-5 September 2013, Geneva, Switzerland

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Résumé:

Social awareness streams limit the expressivity of emotions in computer mediated communication. In this demo, we present a system that allows sharing emotional states in a social group with multimodal ambient feedback in order to provide a more immersive and natural interaction experience.

Opportunistic synergy :
Conférence ArODES
a classifier fusion engine for micro-gesture recognition

Leonardo Angelini, Francesco Carrino, Stefano Carrino, Maurizio Caon, Denis Lalanne, Omar Abou Khaled, Elena Mugellini

Proceedings of AutomotiveUI'13 : Automotive User Interfaces and Interactive Vehicular Applications, 28-30 October 2013, Eindhoven, Netherlands

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Résumé:

In this paper, we present a novel opportunistic paradigm for in-vehicle gesture recognition. This paradigm allows using two or more subsystems in a synergistic manner: they can work in parallel but the lack of some of them does not compromise the functioning of the whole system. In order to segment and recognize micro-gestures performed by the user on the steering wheel, we combine a wearable approach based on the electromyography of the user's forearm muscles, with an environmental approach based on pressure sensors integrated directly on the steering wheel. We present and analyze several fusion methods and gesture segmentation strategies. A prototype has been developed and evaluated with data from nine subjects. The results prove that the proposed opportunistic system performs equal or better than each stand-alone subsystem while increasing the interaction possibilities.

Designing a desirable smart bracelet for older adults
Conférence ArODES

Leonardo Angelini, Maurizio Caon, Stefano Carrino, Luc Bergeron, Nathalie Nyffeler, Mélanie Jean-Mairet, Elena Mugellini

Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication

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Résumé:

In this paper, we present the design process of a smart bracelet that aims at enhancing the life of elderly people. The bracelet acts as a personal assistant during the user's everyday life, monitoring the health status and alerting him or her about abnormal conditions, reminding medications and facilitating the everyday life in many outdoor and indoor activities.

A pervasive game to promote social offline interaction
Conférence ArODES

Maurizio Caon, Elena Mugellini, Omar Abou Khaled

Proceedings of UbiComp'13 Adjunct, 9-12 September 2013, Zurich, Switzerland

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Résumé:

Human relationships are migrating from the physical world to the virtual world. Pervasive games can be a valuable and enjoyable method to bring people back to the physical world. In this position paper, we present a concept for a pervasive game, which integrates some specific mechanisms aiming at promoting social offline interaction.

WheelSense :
Conférence ArODES
enabling tangible gestures on the steering wheel for in-car natural interaction

Leonardo Angelini, Maurizio Caon, Francesco Carrino, Stefano Carrino, Denis Lalanne, Omar Abou Khaled, Elena Mugellini

Proceedings of the 15th International Conference, HCI International 2013, 21-26 July 2013, Las Vegas, NV, USA, Pt. II

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Résumé:

This paper presents WheelSense, a system for non-distracting and natural interaction with the In-Vehicle Information and communication System (IVIS). WheelSense embeds pressure sensors in the steering wheel in order to detect tangible gestures that the driver can perform on its surface. In this application, the driver can interact by means of four gestures that have been designed to allow the execution of secondary tasks without leaving the hands from the steering wheel. Thus, the proposed interface aims at minimizing the distraction of the driver from the primary task. Eight users tested the proposed system in an evaluation composed of three phases: gesture recognition test, gesture recognition test while driving in a simulated environment and usability questionnaire. The results show that the accuracy rate is 87% and 82% while driving. The system usability scale scored 84 points out of 100.

Context-aware multimodal sharing of emotions
Conférence ArODES

Maurizio Caon, Leonardo Angelini, Yong Yue, Omar Abou Khaled, Elena Mugellini

Proceedings of the 15th International Conference, HCI International 2013, 21-26 July 2013, Las Vegas, NV, USA

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Résumé:

Computer mediated interaction often lacks of expressivity, in particular for emotion communication. Therefore, we present a concept for context-aware multimodal sharing of emotions for human-to-computer-to-human interaction in social networks. The multimodal inputs and outputs of this system are distributed in a smart environment in order to grant a more immersive and natural interaction experience. The context information is used to improve the opportuneness and the quality of feedback. We implemented an evaluation scenario and we conducted an observation study during some events with the participants. We reported our considerations at the end of this paper.

Functional gestures for human-environment interaction
Conférence ArODES

Stefano Carrino, Maurizio Caon, Omar Abou Khaled, Rolf Ingold, Elena Mugellini

Proceedings of the 15th International Conference on Human-Computer Interaction, HCI International 2013, 21-26 July 2013, Las Vegas, NV, USA

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Résumé:

In this paper, we describe an opportunistic model for human-environment interaction. Such model is conceived to adapt the expressivity of a small lexicon of gestures through the use of generic functional gestures lowering the cognitive load on the user and reducing the system complexity. An interactive entity is modeled as a finite-state machine. A functional gesture is defined as the semantic meaning of an event that triggers a state transition and not as the movement to be performed. An interaction scenario has been designed in order to evaluate the features of the proposed model and to investigate how its application can enhance a post-WIMP human-environment interaction.

Kinesiologic electromyography for activity recognition
Conférence ArODES

Maurizio Caon, Francesco Carrino, Antonio Ridi, Yong Yue, Omar Abou Khaled, Elena Mugellini

Proceedings of PETRA '13: Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments, 29-31 May 2013, Rhodes, Greece

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Résumé:

This paper presents a wearable system based on kinesiologic electromyography that recognizes the user activity in real time. In particular, the system recognizes the following five activities: "walking", "running", "cycling", "sitting" and "standing". We conducted a study in order to select the opportune muscles and sensors placement. Furthermore, we evaluated the system conducting two analyses: impersonal and subjective. The impersonal analysis evaluated the system behavior when it was trained on several users' data; on the opposite, the subjective analysis evaluated the system when it was specialized on a single subject data. In the impersonal analysis, the accuracy rate was 96.8% for the 10-fold cross-validation and 91.8% for the leave one subject out. The system accuracy rate for the subjective analysis was 99.4%.

Optimization of an electromyography-based activity recognition system
Conférence ArODES

Francesco Carrino, Antonio Ridi, Maurizio Caon, Omar Abou Khaled, Elena Mugellini

Proceedings of the 2013 ISSNIP Biosignals and Biorobotics Conference: Biosignals and Robotics for Better and Safer Living (BRC), 18-20 February 2013, Rio de Janeiro, Brazil

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Résumé:

We present the optimization of a wearable surface electromyography-based system for activity recognition in relation with the number of sensed muscles. The muscles of interest were four: Gastrocnemius, Tibialis Anterior, Vastus Lateralis and Erector Spinae. In particular, the system has been tested for the recognition of five everyday activities: “walking”, “running”, “cycling”, “sitting” and “standing”. We conducted two types of analysis: impersonal and subjective. The impersonal analysis aimed to evaluate the recognition rate when the system was trained over different users. On the opposite, during the subjective analysis the system has been trained using the data coming from a single user. Moreover, we computed the relative computational costs. Among the results, we can highlight that using the signals sensed from three opportunely selected muscles (Gastrocnemius, Tibialis Anterior and Vastus Lateralis) instead of four did not entail a sensible loss of accuracy, whereas it reduced the computational cost of the 24.1 %. In particular, sensing four and three muscles we achieved an activity recognition accuracy higher than 96% for the impersonal analysis; for the subjective analysis, the attained accuracy was higher than 99%.

Democratizing 3D dynamic gestures recognition
Conférence ArODES

Maurizio Caon, Yong Yue, Julien Tscherrig, Omar Abou Khaled, Elena Mugellini

Proceedings of the 2013 1st IEEE Workshop on User-Centered Computer Vision (UCCV), 15-17 January 2013, Clearwater Beach, FL, USA

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Résumé:

Developing vision-based 3D gestures recognition systems requires strong expertise and knowledge in computer vision and machine learning techniques. As human-computer interaction researchers do not generally have a thorough knowledge of these techniques, we developed Gesta. Gesta is a tool that enables non-experts in vision computing and artificial intelligence techniques to rapidly develop a 3D gestures recognition system prototype and to support the gesture design process. This tool works with up to two Microsoft Kinects, and integrates the depth cameras calibration algorithm and the hidden Markov models classifier. The users can manage these complex functions through a simple graphical user interface, even if they do not have any expertise in computer vision and machine learning domains. A usability test with 12 researchers with experience in human-computer interaction has been conducted in order to evaluate the overall usability of this tool. Results demonstrate that the testers appreciated the Gesta tool which scored 88.9 points out of 100 in the Brooke's system usability scale.

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