Application of a Cluster-Based Classifier Ensemble to Activity Recognition in Smart Homes
An increasingly popular technique of monitoring activities within a smart environment involves the use of sensor technologies. With such an approach complex constructs of data are generated which subsequently require the use of activity recognition techniques to infer the underlying activity. The assignment of sensor data to one from a possible set of predefined activities can essentially be considered as a classification task. In this study, we propose the application of a cluster-based classifier ensemble method to the activity recognition problem, as an alternative to single classification models. Experimental evaluation has been conducted on publicly available sensor data collected over a period of 26 days from a single person apartment. Two types of sensor data representation have been considered, namely numeric and binary. The results show that the ensemble method performs with accuracies of 94.2% and 97.5% for numeric and binary data, respectively. These results outperformed a range of single classifiers.
KeywordsActivity recognition classifier ensembles smart homes
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- 5.Hasan, M., Rubaiyeat, H., Lee, Y., Lee, S.: A HMM for Activity Recognition. In: 10th International Conference Advanced Communication Technology, pp. 843–846 (2008)Google Scholar
- 7.Yang, J.Y., Wang, J.S., Chen, Y.P.: Using acceleration measurements for activity recognition: An effective learning algorithm for constructing neural classifiers. Pattern Recognition Letters, 2213–2220 (2008)Google Scholar
- 9.Jurek, A., Bi, Y., Wu, S., Nugent, C.D.: A survey of commonly used ensemble-based classification techniques. Cambridge University Press (in press, 2013)Google Scholar
- 10.Jurek, A., Bi, Y., Wu, S., Nugent, C.D.: A Cluster-Based Classifier Ensemble as an Alternative to the Nearest Neighbour Ensemble. In: 24th IEEE International Conference on Tools with Artificial Intelligence, pp. 1100–1105 (2012)Google Scholar
- 11.van Kasteren, T.: Activity Recognition for Health Monitoring Elderly using Temporal Probabilistic Models. UvA Universiteit van Amsterdam, Ph.D. thesis (2011)Google Scholar