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Mixed-dependency models for multi-resident activity recognition in smart homes
journal contribution
posted on 2023-05-20, 17:25 authored by Son TranSon Tran, Ngo, T-S, Zhang, Q, Karunanithi, KRecent growing interest in ambient intelligent environments has driven a desire for effective models to reason about activities of multiple residents. Such models are the keystone for the future of smart homes where occupants can be assisted with non-intrusive technologies. Much attention has been put on this research, however current works tend to focus on developing statistical algorithms for prediction, whilst there still lacks a study to fully understand the relations of residents’ behaviours and how they are reflected through the sensors’ states. In this paper we investigate the dependencies of the activities from residents and their interaction with the environments. We represent such dependencies in Bayesian networks that leads to construction of six variants of Hidden Markov Models (HMMs). Furthermore, we argue that a complete model should embody more than one type of dependency. Therefore, we propose an ensemble of HMMs, and then generalize it to a novel mixed-dependency model. In the experiments we perform intensive evaluation of our study on multi-resident activity recognition task. The results show that the proposed models outperform other models in three smart home environments, thus asserting our hypothesis.
History
Publication title
Multimedia Tools and ApplicationsVolume
79Pagination
23445-23460ISSN
1380-7501Department/School
School of Information and Communication TechnologyPublisher
Kluwer Academic PublPlace of publication
Van Godewijckstraat 30, Dordrecht, Netherlands, 3311 GzRights statement
Copyright 2020 Springer Science+Business Media, LLC, part of Springer NatureRepository Status
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