. Primitivestate, PhysicalObjects((p1: Person)(z1: Zone))

. Primitivestate, PhysicalObjects((p1: Person)(z1: Zone))

H. L. O-'brien and E. G. Toms, A theoretical extension of the technology acceptance model: Four longitudinal field studies, Journal of the American Society for Information Science and Technology, issue.6, p.59, 2008.

K. Clough-gorr, T. Bickmore, D. Schulman, and T. Heeren, Relational agents for older adults, Interacting with Computers, vol.17, issue.6, 2005.

P. Chaudhui, Z. Kasap, M. B. Moussa, and N. Magnenatthalmann, Making them remember ? emotional virtual characters with memory, IEEE Computer Graphics and Applications, vol.29, issue.2, 2009.

C. A. Morse, S. Carmel, and F. M. Torres-gil, The art of aging well, 2007.

R. Fernández-ballesteros, Active aging: The contribution of psychology Cambridgel, 2008.

J. W. Rowe and R. L. Kahn, Successful Aging, The Gerontologist, vol.37, issue.4, pp.433-440, 1997.
DOI : 10.1093/geront/37.4.433

C. Neaufisl, E. Polard, S. Balliard, S. Schuck, D. Ferrer et al., Effets indésirables et médicaments de la maladie d'alzheimer. Congrès National de la Société Française de Pharmacologie, pp.237-242, 1999.

A. , V. Gunten, and A. Kung, Les limites de la prescription des inhibiteurs de l'acétylcholinestérase dans la maladie d'alzheimer, Médecine et hygiène, pp.302-308, 2000.

D. Pascale, Non pharmacological interventions in dementia: a review and prospect, Psychol NeuroPsychiatr Vieil, vol.4, issue.2, pp.135-179, 2006.

L. Guey, G. Rebok, and K. Ball, Ten-year effects of the active cognitive training trial on cognition and everyday functioning in older adult, Journal of the American Geriatrics Society, vol.64, issue.1, pp.16-24, 2014.

O. Olufuwa and T. Alemayehu, Improving elderly health care by using serious games: A systematic literature review, 2015.

H. Mollenkopf, Assistive technology: Potential and preconditions of useful applications, Impact of Technology on Successful Aging, pp.203-214, 2003.

A. D. Fisk, A. R. Rogers, N. Charness, S. J. Czaja, and J. Sharit, Designing for Older Adults ? Principles and Creative Human Factors Approaches, 2004.
DOI : 10.1201/9781420023862

S. J. Czaja and C. C. Lee, Information technology and older adults. In The Human- Computer Interaction Handbook, 2006.

H. S. Becker, Notes on the Concept of Commitment, American Journal of Sociology, vol.66, issue.1, 1960.
DOI : 10.1086/222820

M. Argyle and M. Cook, Gaze and mutual gaze, 1976.

E. Z. Mcclave, Linguistic functions of head movements in the context of speech, Journal of Pragmatics, vol.32, issue.7, p.32, 2000.
DOI : 10.1016/S0378-2166(99)00079-X

F. D. Davis, Perceived Usefulness, Perceived Ease of Use, and User Acceptance of Information Technology, MIS Quarterly, vol.13, issue.3, 1989.
DOI : 10.2307/249008

V. Venkatesh and F. D. David, A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies, Management Science, vol.46, issue.2, 2000.
DOI : 10.1287/mnsc.46.2.186.11926

G. Kearsley and B. Shneiderman, Engagement theory: A framework for technologybased teaching and learning. Educational technology, 1998.

L. Hedman, P. Sharafi, and H. Montgomery, Using information technology: engagement modes, flow experience and personality orientations, Computers in Human Behavior, vol.22, issue.5, 2006.

M. Csikszentmihalyi, Flow: The psychology of optimal experience, 1990.

M. Jennings, Theory and models for creating engaging and immersive ecommerce web sites, Proceedings of the 2000 ACM SIGCPR Conference on Computer Personnel Research, 2000.
DOI : 10.1145/333334.333358

P. L. Roth, A. B. Woszczynski, and A. H. Segars, Exploring the theoretical foundations of playfulness in computer interactions, Computers in Human Behavior, vol.18, issue.4, 2002.

J. Mccarthy and P. Wright, Technology as experience, interactions, vol.11, issue.5, 2004.
DOI : 10.1145/1015530.1015549

J. M. Morris, User interface design for older adults, Interacting with Computers, vol.6, issue.4, 1994.
DOI : 10.1016/0953-5438(94)90009-4

S. Kurniawan and P. Zaphiris, Research-derived web design guidelines for older people, Proceedings of the 7th international ACM SIGACCESS conference on Computers and accessibility, Assets '05, pp.129-135, 2005.
DOI : 10.1145/1090785.1090810
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.109.825

M. Zajicek, Interface design for older adults, Proceedings of the 2001 EC/NSF workshop on Universal accessibility of ubiquitous computing providing for the elderly, WUAUC'01, 2001.
DOI : 10.1145/564526.564543

J. Häikiö, A. Wallin, M. Isomursu, H. Ailisto, T. Matinmikko et al., Touch-based user interface for elderly users, Proceedings of the 9th International Conference on Human Computer Interaction with Mobile Devices and Services, MobileHCI '07, pp.289-296, 2007.

A. L. Culén and T. Bratteteig, Touch-Screens and Elderly users: A Perfect Match? In ACHI 2013, The Sixth International Conference on Advances in Computer-Human Interactions, pp.460-465, 2013.

J. Kay-apted, T. , and A. Quigley, Tabletop sharing of digital photographs for the elderly, Proceedings of the SIGCHI conference on Human Factors in computing systems, pp.781-790, 2006.

B. Loureiro and R. Rodrigues, Design guidelines and design recommendations of multi-touch interfaces for elders, The Seventh International Conference on Advances in Computer-Human Interactions, 2014.

C. Golanski-camille-roux, F. Portet, M. Vacher, and B. Meillon, Design and evaluation of a smart home voice interface for the elderly. In Acceptability and objec-tion aspects. Personal and Ubiquitous Computing, p.127, 2013.

M. Doris, The impact of animated interface agents: a review of empirical research, Human-Computer Studies Journal, vol.52, 2000.

M. N. Grimshaw, R. H. Campbell, and G. M. Green, Relational agents: A critical review, The Open Virtual Reality Journal, vol.1, issue.1, 2009.

D. Schulman, T. Bickmore, and L. Yin, Maintaining engagement in long-term interventions with relational agents, Applied Artificial Intelligence: An International Journal, vol.24, issue.6, 2010.

D. Oyarzun, J. J. Yanguas, C. Buiza, M. F. Gonzalez, A. Ortiz et al., Elderly users in ambient intelligence: Does an avatar improve the interaction? Universal access in ambient intelligence environments, 2007.

J. I. Aoe-kiyoshi-yasuda and M. Fuketa, Development of an agent system for conversing with individuals with dementia. The 27th Annual Conference of the, 2013.

Y. Laurent-corniquet, S. Benveniste, P. Jouvelot, P. Wargnier, G. Carletti et al., Field evaluation with cognitively-impaired older adults of attention management in the embodied conversational agent louise, 4th International Conference on Serious Games and Applications for Health, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01266477

H. H. Nap, Y. De-kort, W. Ijsselsteijn, and K. Poels, Digital game design for elderly users, Proceedings of the 2007 conference on Future Play, pp.17-22, 2007.

J. W. Lee and S. Park, A study on interface design of serious game for the elderly, Advanced Science and Technology Letters, pp.159-163, 2015.

O. Mubin, S. Shahid, A. Mahmud, and J. B. Martens, Designing and evaluating the tabletop game experience for senior citizens, Proceedings of the 5th Nordic conference on Human-computer interaction: building bridges, pp.285-308, 2006.

C. Miao, H. Yu, C. Leung, Z. Pan, and J. J. Chin, The effects of familiarity design on the adoption of wellness games by the elderly, IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT), pp.387-390, 2015.

S. Gerling, K. M. , and M. Masuch, Exergame design for elderly users, Proceedings of the 7th International Conference on Advances in Computer Entertainment Technology, ACE '10, pp.66-69, 2010.
DOI : 10.1145/1971630.1971650

K. M. Gerling, R. L. Mandryk, and M. R. Kalyn, Wheelchair-based game design for older adults, Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS '13, pp.1-27, 2013.
DOI : 10.1145/2513383.2513436
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.363.3721

F. A. Nghiem and . Bremond, Background subtraction in people detection framework for RGB-D cameras, 2014 11th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), p.2014
DOI : 10.1109/AVSS.2014.6918675
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.677.882

F. , B. D. Chau, and M. Thonnat, A multi-featuretracking algorithm enabling adaptation to context variation, the International Conference on Imaging for Crime Detection and Prevention, 2011.
DOI : 10.1049/ic.2011.0127
URL : http://arxiv.org/abs/1112.1200

B. A. Fosty, . R. Konig, . M. Romdhane, V. C. Thonnat-crispim-junior, F. Bathrinarayanan et al., Evaluation of a monitoring system for event recognition of older people, The 10th IEEE International Conference on Advanced Video and Signal-Based Surveillance, 2013.
URL : https://hal.archives-ouvertes.fr/hal-00875972

F. Sascha, M. Morandell, H. Martin, W. Andreas, and . Siegfried, Avatars in assistive homes for the elderly. HCI and usability for education and work, 2013.

L. S. Candace, B. Timothy, P. V. Laura, and B. Barbara, Designing relational agents as long term social companions for older adults, The 12th international conference on Intelligent Virtual Agents, 2012.

O. David, J. Jose, B. Cristina, M. F. Gonzalez, O. Amalia et al., Elderly users in ambient intelligence: does an avatar improve the interaction? The 9th conference on User interfaces for all, 2006.

L. M. Robins, M. F. Folstein, and J. E. Helzer, The mini-mental state examination, Arch Gen. Psychiatry, issue.7, p.40, 1983.

M. Phan-tran, B. Khue, R. François, and . Philippe, Comment intéresser les personnes âgées aux serious game ?, Journée Annuelle SFTAG 2014, 2014.

V. B. Axel, C. Tammy, B. Craig, H. Jesse, P. Pascal et al., Automated handwashing assistance for persons with dementia using video and a partially observable markov decision process, Computer Vision and Image Understanding, 2010.

M. Phan-tran, B. Khue, P. François, and . Robert, Assistance for Older Adults in Serious Game Using an Interactive System, GALA 2015 -4th International Game and Learning Alliance Conference, 2015.
DOI : 10.1007/978-3-540-71025-7_8
URL : https://hal.archives-ouvertes.fr/hal-01275258

M. Phan-tran, R. Khue, B. Philippe, and . François, A virtual agent for enhancing performance and engagement of older people with dementia in serious games, Workshop Artificial Compagnon-Affect-Interaction, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01369878

F. Negin, S. Cosar, M. Koperski, and F. Bremond, Generating unsupervised models for online long-term daily living activity recognition, 2015 3rd IAPR Asian Conference on Pattern Recognition (ACPR), p.2015, 2015.
DOI : 10.1109/ACPR.2015.7486491
URL : https://hal.archives-ouvertes.fr/hal-01233494