Learning situation models in a smart home

  • Authors:

  • Oliver Brdiczka;James L. Crowley;Patrick Reignier

  • Affiliations:

  • Palo Alto Research Center, Palo Alto, CA;PRIMA Research Group, Institut National de Recherche en Informatique et en Automatique, Rhône-Alpes, Saint Ismier Cedex, France and Institute National Polytechnique de Grenoble, Grenoble Cede ...;PRIMA Research Group, Institut National de Recherche en Informatique et en Automatique, Rhône-Alpes, Saint Ismier Cedex, France and University Joseph Fourier, Grenoble Cedex 9, France

  • Venue:
  • IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on human computing
  • Year:
  • 2009

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Abstract

This paper addresses the problem of learning situation models for providing context-aware services. Context for modeling human behavior in a smart environment is represented by a situation model describing environment, users, and their activities. A framework for acquiring and evolving different layers of a situation model in a smart environment is proposed. Different learning methods are presented as part of this framework: role detection per entity, unsupervised extraction of situations from multimodal data, supervised learning of situation representations, and evolution of a predefined situation model with feedback. The situation model serves as frame and support for the different methods, permitting to stay in an intuitive declarative framework. The proposed methods have been integrated into a whole system for smart home environment. The implementation is detailed, and two evaluations are conducted in the smart home environment. The obtained results validate the proposed approach.