Learning temporal context for activity recognition

Coppola, Claudio and Krajnik, Tomas and Duckett, Tom and Bellotto, Nicola (2016) Learning temporal context for activity recognition. In: European Conference on Artificial Intelligence (ECAI), 29 Aug - 2 Sept 2016, The Hague, Holland.

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Item Type:Conference or Workshop contribution (Paper)
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Abstract

We investigate how incremental learning of long-term human activity patterns improves the accuracy of activity classification over time. Rather than trying to improve the classification methods themselves, we assume that they can take into account prior probabilities of activities occurring at a particular time. We use the classification results to build temporal models that can provide these priors to the classifiers. As our system gradually learns about typical patterns of human activities, the accuracy of activity classification improves, which results in even more accurate priors. Two datasets collected over several months containing hand-annotated activity in residential and office environments were chosen to evaluate the approach. Several types of temporal models were evaluated for each of these datasets. The results indicate that incremental learning of daily routines leads to a significant improvement in activity classification.

Keywords:activity recognition, temporal context, Ambient Assisted Living
Subjects:G Mathematical and Computer Sciences > G700 Artificial Intelligence
Divisions:College of Science > School of Computer Science
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ID Code:23297
Deposited On:13 Jun 2016 13:21

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