Learning in dynamic environments: application to the diagnosis of evolving systems

Abstract

In dynamic environments, data characteristics may drift over time. This leads to deteriorate dramatically the performance of incremental learning algorithms over time. This is because of the use of data which is no more consistent with the characteristics of new incoming one. In this paper, an approach for learning in dynamic environments is proposed. This approach integrates a mechanism to use only the recent and useful patterns to update the classifier without a “catastrophic forgetting”. This approach is used for the acoustic leak detection in the steam generator unit of the nuclear power generator “Prototype Fast React”.