Mining emerging patterns for recognizing activities of multiple users in pervasive computing

Tao Gu, Zhanqing Wu, Liang Wang, Xianping Tao, Jian Lu

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

3 Citations (Scopus)

Abstract

Understanding and recognizing human activities from sensor readings is an important task in pervasive computing. Existing work on activity recognition mainly focuses on recognizing activities for a single user in a smart home environment. However, in real life, there are often multiple inhabitants live in such an environment. Recognizing activities of not only a single user, but also multiple users is essential to the development of practical context-aware applications in pervasive computing. In this paper, we investigate the fundamental problem of recognizing activities for multiple users from sensor readings in a home environment, and propose a novel pattern mining approach to recognize both single-user and multi-user activities in a unified solution. We exploit emerging pattern -a type of knowledge pattern that describes significant changes between classes of data - for constructing our activity models, and propose an emerging pattern based multi-user activity recognizer (epMAR) to recognize both single-user and multiuser activities. We conduct our empirical studies by collecting real-world activity traces done by two volunteers over a period of two weeks in a smart home environment, and analyze the performance in detail with respect to various activity cases in a multi-user scenario. Our experimental results demonstrate that our epMAR recognizer achieves an average accuracy of 89.72% for all the activity cases.
Original languageEnglish
Title of host publication6th Annual International Conference on Mobile and Ubiquitous Systems: Networking Services (MobiQuitous 2009)
Place of PublicationGent, Belgium
PublisherICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)
Pages1-10
Number of pages10
ISBN (Print)9789639799592
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventInternational Conference on Mobile and Ubiquitous Systems: Networking & Services (6th: 2009) - Toronto, Canada
Duration: 13 Jul 200916 Jul 2009

Conference

ConferenceInternational Conference on Mobile and Ubiquitous Systems: Networking & Services (6th: 2009)
Abbreviated titleMobiQuitous 2009
CountryCanada
CityToronto
Period13/07/0916/07/09

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