Activity recognition using temporal evidence theory
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|Title:||Activity recognition using temporal evidence theory||Authors:||McKeever, Susan
Bleakley, Chris J.
|Permanent link:||http://hdl.handle.net/10197/2947||Date:||2010||Online since:||2011-05-24T11:15:56Z||Abstract:||The ability to identify the behavior of people in a home is at the core of Smart Home functionality. Such environments are equipped with sensors that unobtrusively capture information about the occupants. Reasoning mechanisms transform the technical, frequently noisy data of sensors into meaningful interpretations of occupant activities. Time is a natural human way to reason about activities. People's activities in the home often have an identifiable routine; activities place at distinct times throughout the day and last for predicable lengths of time. However, the inclusion of temporal information is still limited in the domain of activity recognition. Evidence theory is gaining increasing interest in the field of activity recognition, and is suited to the incorporation of time related domain knowledge into the reasoning process. In this paper, an evidential reasoning framework that incorporates temporal knowledge is presented. We evaluate the effectiveness of the framework using a third party published smart home dataset. An improvement in activity recognition of 70% is achieved when time patterns and activity durations are included in activity recognition. We also compare our approach with Naïve Bayes classifier and J48 Decision Tree, with temporal evidence theory achieving higher accuracies than both classifiers.||Funding Details:||Science Foundation Ireland||Type of material:||Journal Article||Publisher:||IOS Press||Journal:||Journal of Ambient Intelligence and Smart Environments||Volume:||2||Issue:||3||Start page:||253||End page:||269||Copyright (published version):||2010 IOS Press and the authors.||Keywords:||Smart home dataset; Time; Context reasoning; Activity recognition; Evidence theory; Dempster-shafer theory; Temporal||Subject LCSH:||Case-based reasoning
Human activity recognition
|DOI:||10.3233/AIS-2010-0071||Other versions:||http://dx.doi.org/10.3233/AIS-2010-0071||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||CLARITY Research Collection|
Computer Science Research Collection
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