Pattern Recognition in Wireless Sensor Networks in Presence of Sensor Failures

In the current paper we consider the task of object classification in wireless sensor networks. Assuming that each feature needed for classification is acquired by a sensor, a new approach is proposed that aims at minimizing the number of features used for classification while maintaining a given correct classification rate. In particular, we address the case where a sensor may have a failure before its battery is exhausted. In experiments with data from the UCI repository, the feasibility of this approach is demonstrated. Key–Words: wireless sensor networks, feature ranking, feature selection, system lifetime, sensor failure