Detecting Anomalies to Improve Classification Performance in Opportunistic Sensor Networks

Anomalies and changes in sensor networks which are deployed for activity recognition may abate the classification performance. Detection of anomalies followed by compensatory reaction would ameliorate the performance. This paper introduces a novel approach to detect the faulty or degraded sensors in a multi-sensory environment and a way to compensate it. The approach considers the distance between each classifier output and the fusion output to decide whether a sensor (classifier) is degraded or not. Evaluation is done on two activity datasets with different configuration of sensors and different types of noise. The results show that using the method improves the classification accuracy.


Published in:
Proceedings of 7th IEEE International Workshop on Sensor Networks and Systems for Pervasive Computing (PerSeNS 2011)
Presented at:
Seventh IEEE International Workshop on Sensor Networks and Systems for Pervasive Computing, Seattle, WA, USA, March 21-25,2011
Year:
2011
Keywords:
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 Record created 2011-02-15, last modified 2018-03-18

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