G. D. Abowd, A. K. Dey, P. J. Brown, N. Davies, M. Smith et al., Towards a Better Understanding of Context and Context-Awareness, Proceedings of the 1st International Symposium on Handheld and Ubiquitous Computing , HUC'99, pp.304-307, 1999.
DOI : 10.1007/3-540-48157-5_29

. Abox, Wikipedia Free Encycl Available from: http://en.wikipedia.org/wiki/Abox Ambient intelligence, Wikipedia Free Encycl. Available from, 2009.

A. Jena, Available from, 2010.

D. Athanasopoulos, A. V. Zarras, V. Issarny, E. Pitoura, and P. Vassiliadis, CoWSAMI: Interface-aware context gathering in ambient intelligence environments, Pervasive and Mobile Computing, vol.4, issue.3, pp.360-389, 2008.
DOI : 10.1016/j.pmcj.2007.12.004

URL : https://hal.archives-ouvertes.fr/inria-00415931

M. Baldauf, S. Dustdar, and F. Rosenberg, A survey on context-aware systems, International Journal of Ad Hoc and Ubiquitous Computing, vol.2, issue.4, pp.263-277, 2007.
DOI : 10.1504/IJAHUC.2007.014070

M. Baldauf, S. Dustdar, and F. Rosenberg, A survey on context-aware systems, International Journal of Ad Hoc and Ubiquitous Computing, vol.2, issue.4, pp.263-277, 2007.
DOI : 10.1504/IJAHUC.2007.014070

L. Baum, T. Petrie, G. Soules, and N. Weiss, A Maximization Technique Occurring in the Statistical Analysis of Probabilistic Functions of Markov Chains, The Annals of Mathematical Statistics, vol.41, issue.1, pp.164-171, 1970.
DOI : 10.1214/aoms/1177697196

C. Bettini, O. Brdiczka, K. Henricksen, J. Indulska, D. Nicklas et al., A survey of context modelling and reasoning techniques, Pervasive and Mobile Computing, vol.6, issue.2, pp.161-180, 2010.
DOI : 10.1016/j.pmcj.2009.06.002

M. Bhat, SOA? ESB? What is all this? [WWW Document] Available from: http://software.intel.com/en-us/articles/soa-esb-what-is-all-this, 2008.

W. Borst, Construction of Engineering Ontologies for Knowledge Sharing and Reuse, 1997.

T. R. Gruber, A translation approach to portable ontology specifications. Knowl. A cquis, pp.199-220, 1993.

T. Gu, H. K. Pung, and J. K. Yao, Towards a flexible service discovery, Journal of Network and Computer Applications, vol.28, issue.3, pp.233-248, 2005.
DOI : 10.1016/j.jnca.2004.06.001

T. Gu, H. K. Pung, and D. Q. Zhang, A middleware for building context-aware mobile services, in: Vehicular Technology Conference, pp.2656-2660, 2004.

T. Gu, H. K. Pung, and D. Q. Zhang, A service???oriented middleware for building context???aware services, Journal of Network and Computer Applications, vol.28, issue.1, pp.1-18, 2005.
DOI : 10.1016/j.jnca.2004.06.002

J. Gwizdka, What's in the context? Modeling Context-Aware Systems, pp.1-4, 2000.

M. Hall, E. Frank, G. Holmes, B. Pfahringer, P. Reutemann et al., The WEKA data mining software, ACM SIGKDD Explorations Newsletter, vol.11, issue.1, pp.10-18, 2009.
DOI : 10.1145/1656274.1656278

B. Han, W. Jia, J. Shen, and M. Yuen, Context-Awareness in Mobile Web Services, Parallel and Distributed Processing and Applications, Lecture Notes in Computer Science, pp.519-528, 2005.
DOI : 10.1007/978-3-540-30566-8_62

K. Henricksen, J. Indulska, and A. Rakotonirainy, Generating Context Management I nfrastructure from High-Level Context Models, 4th International Conference on Mobile Data Management (MDM) -Industrial Track, pp.1-6, 2003.

J. Hill, R. Szewczyk, A. Woo, S. Hollar, D. Culler et al., System architecture directions for networked sensors, Architectural Support for Programming Languages and Operating Systems, pp.93-104, 2000.

T. Hofer, W. Schwinger, M. Pichler, G. Leonhartsberger, J. Altmann et al., Context-awareness on mobile devices - the hydrogen approach, 36th Annual Hawaii International Conference on System Sciences, 2003. Proceedings of the, pp.292-302, 2003.
DOI : 10.1109/HICSS.2003.1174831

A. Horn, On sentences which are true of direct unions of algebras, The Journal of Symbolic Logic, vol.8, issue.01, pp.14-21, 1951.
DOI : 10.2307/2268661

D. H. Hu, V. W. Zheng, and Q. Yang, Cross-domain activity recognition via transfer learning, Pervasive and Mobile Computing, vol.7, issue.3, pp.344-358, 2011.
DOI : 10.1016/j.pmcj.2010.11.005

R. Hull, P. Neaves, and J. Bedford-roberts, Towards situated computing, Digest of Papers. First International Symposium on Wearable Computers, pp.146-153, 1997.
DOI : 10.1109/ISWC.1997.629931

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.88.641

B. Johanson, A. Fox, and T. Winograd, The Interactive Workspaces project: experiences with ubiquitous computing rooms, IEEE Pervasive Computing, vol.1, issue.2, pp.67-74, 2002.
DOI : 10.1109/MPRV.2002.1012339

G. V. Kass, An Exploratory Technique for Investigating Large Quantities of Categorical Data, Applied Statistics, vol.29, issue.2, pp.119-127, 1980.
DOI : 10.2307/2986296

M. Keidl and A. Kemper, Towards context-aware adaptable web services, Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters , WWW Alt. '04, pp.55-65, 2004.
DOI : 10.1145/1013367.1013378

T. Kindberg, J. Barton, J. Morgan, G. Becker, D. Caswell et al., People, places, things: Web presence for the real world, Proceedings Third IEEE Workshop on Mobile Computing Systems and Applications, pp.19-28, 2000.
DOI : 10.1109/MCSA.2000.895378

K. E. Kjaer, A survey of context-aware middleware, Proceedings of the 25th Conference on IASTED International Multi-Conference: Software Engineering, SE'07, pp.148-155, 2007.

P. Korpipaa, J. Mantyjarvi, J. Kela, H. Keranen, and E. Malm, Managing context information in mobile devices, IEEE Pervasive Computing, vol.2, issue.3, pp.42-51, 2003.
DOI : 10.1109/MPRV.2003.1228526

J. Krumm, Ubiquitous Computing Fundamentals, 2009.
DOI : 10.1201/9781420093612

B. Y. Lim and A. K. Dey, Toolkit to support intelligibility in context-aware applications, Proceedings of the 12th ACM international conference on Ubiquitous computing, Ubicomp '10, pp.13-22, 2010.
DOI : 10.1145/1864349.1864353

L. Lin, Location-based activity recognition, 2006.

J. Mccarthy, Notes on formalizing context, Proceedings of the 13th International Joint Conference on Artifical Intelligence -Volume 1, IJCAI'93, pp.555-560, 1993.

C. Melchiorre, S. Reiff-marganiec, H. Q. Yu, D. Shall, and S. Dustdar, InContext -Interaction and Context-based Technologies for Collaborative Teams, 2008.

R. Neches, R. Fikes, T. Finin, T. Gruber, R. Patil et al., Enabling technology for knowledge sharing, pp.36-56, 1991.

G. V. Pallapa, A privacy enhanced situation-aware middleware framework for ubiquitous computing environments, 2010.

J. Pascoe, N. S. Ryan, and D. R. Morse, Human Computer Giraffe Interaction: HCI in the Field, Workshop on Human Computer Interaction with Mobile Devices, pp.21-23, 1998.

M. Pazzani, J. Muramatsu, and D. Billsus, Syskill & Webert: Identifying interesting web sites, Proceedings of the Thirteenth National Conference on Artificial Intelligence, pp.96-54, 1996.

M. E. Pollack, L. Brown, D. Colbry, C. E. Mccarthy, C. Orosz et al., Autominder: an intelligent cognitive orthotic system for people with memory impairment, Robotics and Autonomous Systems, vol.44, issue.3-4, pp.3-4, 2003.
DOI : 10.1016/S0921-8890(03)00077-0

. Protégé, Available from: http://protege, 2004.

J. R. Quinlan, Induction of decision trees, Machine Learning, vol.1, issue.1, pp.81-106, 1986.
DOI : 10.1007/BF00116251

J. R. Quinlan, C4.5: programs for machine learning, 1993.

L. Rabiner, A tutorial on hidden Markov models and selected applications in speech recognition, Proc. IEEE, pp.257-286, 1989.

A. Ranganathan and R. H. Campbell, A Middleware for Context-Aware Agents in Ubiquitous Computing Environments, Middleware 2003, pp.143-161, 2003.
DOI : 10.1007/3-540-44892-6_8

M. Román, C. Hess, R. Cerqueira, R. H. Campbell, and K. Nahrstedt, A middleware infrastructure for active spaces, IEEE Pervasive Computing, vol.1, issue.4, pp.74-83, 2002.
DOI : 10.1109/MPRV.2002.1158281

M. Román, C. Hess, R. Cerqueira, R. H. Campbell, and K. Nahrstedt, A middleware infrastructure for active spaces, IEEE Pervasive Computing, vol.1, issue.4, pp.74-83, 2002.
DOI : 10.1109/MPRV.2002.1158281

D. Romero, C. Parra, L. Seinturier, L. Duchien, and R. Casallas, An SCA-Based Middleware Platform for Mobile Devices, 2008 12th Enterprise Distributed Object Computing Conference Workshops, pp.393-396, 2008.
DOI : 10.1109/EDOCW.2008.17

URL : https://hal.archives-ouvertes.fr/inria-00311807

L. Rudolph, Project Oxygen: Pervasive, Human-Centric Computing ??? An Initial Experience, Proceedings of the 13th International Conference on Advanced Information Systems Engineering, CAiSE '01, pp.1-12, 2001.
DOI : 10.1007/3-540-45341-5_1

N. Ryan, MCFE metadata elements, version 0.2. Working document Available from, 1997.

N. Ryan, J. Pascoe, and D. Morse, Enhanced Reality Fieldwork: the Context-aware Archaeological Assistant, British Archaeology Report, 1997.

D. Salber, A. K. Dey, and G. D. Abowd, The context toolkit, Proceedings of the SIGCHI conference on Human factors in computing systems the CHI is the limit, CHI '99, pp.434-441, 1999.
DOI : 10.1145/302979.303126

S. Salerno, The Learning Grid Handbook: Concepts, Technologies and Applications, 2008.

M. Satyanarayanan, Pervasive computing: vision and challenges, IEEE Personal Communications, vol.8, issue.4, pp.10-17, 2001.
DOI : 10.1109/98.943998

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.6338

B. Schilit, N. Adams, and R. Want, Context-Aware Computing Applications, Proceedings of the Workshop on Mobile Computing Systems and Applications, pp.85-90, 1994.

B. N. Schilit and M. M. Theimer, Disseminating active map information to mobile hosts, IEEE Network, vol.8, issue.5, pp.22-32, 1994.
DOI : 10.1109/65.313011

A. Schmidt and K. V. Laerhoven, How to build smart appliances? IEEE Pers, Commun, vol.8, pp.66-71, 2001.

Q. Z. Sheng and B. Benatallah, ContextUML: A UML-Based Modeling Language for Model-Driven Development of Context-Aware Web Services Development, International Conference on Mobile Business (ICMB'05), pp.206-212, 2005.
DOI : 10.1109/ICMB.2005.33

A. Singh and M. Conway, Survey of Context aware Frameworks -Analysis and Criticism, 2006.

C. Sørensen, M. Wu, T. Sivaharan, G. S. Blair, P. Okanda et al., A context-aware middleware for applications in mobile Ad Hoc environments, Proceedings of the 2nd Workshop on Middleware for Pervasive and Ad-hoc Computing, pp.107-110, 2004.

J. P. Sousa, J. P. Sousa, D. Garlan, and D. Garlan, Aura: An Architectural Framework for User Mobility in Ubiquitous Computing Environments, Proceedings of the 3rd Working IEEE/IFIP Conference on Software Architecture, pp.29-43, 2002.
DOI : 10.1007/978-0-387-35607-5_2

R. Sparql-query-language-for, Available from: http://www.w3.org/TR/rdf- sparql-query, 2008.

T. Strang and C. Linnhoff-popien, A Context Modeling Survey, in: In: Workshop on Advanced Context Modelling, Reasoning and Management, The Sixth International Conference on Ubiquitous Computing, 2004.

R. Studer, V. R. Benjamins, and D. Fensel, Knowledge engineering: Principles and methods, Data & Knowledge Engineering, vol.25, issue.1-2, pp.161-197, 1998.
DOI : 10.1016/S0169-023X(97)00056-6

H. Truong, L. Juszczyk, A. Manzoor, and S. Dustdar, ESCAPE ??? An Adaptive Framework for Managing and Providing Context Information in Emergency Situations, Second European Conference, pp.207-222, 2007.
DOI : 10.1007/978-3-540-75696-5_13

H. Truong and S. Dustdar, A survey on context???aware web service systems, International Journal of Web Information Systems, vol.5, issue.1, pp.5-31, 2009.
DOI : 10.1108/17440080910947295

D. L. Vail, M. M. Veloso, and J. D. Lafferty, Conditional random fields for activity reco gnition, Proceedings of the 6th International Joint Conference on Autonomous Agents and Multiagent Systems, pp.1-2358, 2007.

T. Van-kasteren, A. Noulas, G. Englebienne, and B. Kröse, Accurate activity recogn ition in a home setting, Proceedings of the 10th International Conference on Ubiquitous Computing, UbiComp'08, pp.1-9, 2008.

A. J. Viterbi, Error bounds for convolutional codes and an asymptotically optimum decoding algorithm, IEEE Transactions on Information Theory, vol.13, issue.2, pp.260-269, 1967.
DOI : 10.1109/TIT.1967.1054010

X. H. Wang, D. Q. Zhang, T. Gu, and H. K. Pung, Ontology Based Context Modeling and Reasoning using OWL, Proceedings of the Second IEEE Annual Conference on Pervasive Computing and Communications Workshops, pp.18-23, 2004.

R. Want, A. Hopper, V. Falcão, and J. Gibbons, The active badge location system, ACM Transactions on Information Systems, vol.10, issue.1, pp.91-102, 1992.
DOI : 10.1145/128756.128759

URL : https://hal.archives-ouvertes.fr/hal-00699850

R. Want, B. N. Schilit, N. I. Adams, R. Gold, K. Petersen et al., An overview of the PARCTAB ubiquitous computing experiment, IEEE Personal Communications, vol.2, issue.6, pp.28-43, 1995.
DOI : 10.1109/98.475986

T. Xu, B. David, R. Chalon, and Y. Zhou, A context-aware middleware for ambient intelligence, Proceedings of the Workshop on Posters and Demos Track, PDT '11, pp.1-10, 2011.
DOI : 10.1145/2088960.2088970

URL : https://hal.archives-ouvertes.fr/hal-01492957

T. Xu, Y. Zhou, B. David, and R. Chalon, Supporting Activity Context Recognition in Context aware Middleware, Seventh AAAI Conference on Artificial Intelligence (AAAI'13), 2013.
URL : https://hal.archives-ouvertes.fr/hal-01339212

T. Xu, H. Jin, B. David, R. Chalon, and Y. Zhou, A context-ware middleware for interaction devices deployment in AmI, 15th International Conference on Human- Computer Interaction (HCI'13), 2013.

T. Xu, B. David, R. Chalon, and Y. Zhou, A context-aware middleware for ambient intelligence, Proceedings of the Workshop on Posters and Demos Track, PDT '11, 2011.
DOI : 10.1145/2088960.2088970

URL : https://hal.archives-ouvertes.fr/hal-01492957

Y. Zhou, T. Xu, B. David, and R. Chalon, Innovative wearable interfaces: an exploratory analysis of paper-based interfaces with camera-glasses device unit, Personal and Ubiquitous Computing, vol.16, issue.1
DOI : 10.1007/s00779-013-0697-4

URL : https://hal.archives-ouvertes.fr/hal-01267053

B. David, C. Yin, Y. Zhou, T. Xu, B. Zhang et al., SMART-CITY: problematic , techniques and case studies, 8th International Conference on Computing Technology and Information Management (ICCM 12), 2012.

B. David, Y. Zhou, T. Xu, and R. Chalon, Mobile User Interfaces and their Utilization in a Smart City, pp.383-388, 2011.
URL : https://hal.archives-ouvertes.fr/hal-01354533