Survey on change detection over data stream

Abstract

Data stream is a type of dynamic data,which is driven by some hidden contexts and may change with time.Generally speaking,the change implies some event in the real world.To detect change over data stream timely and accurately has a quite wide range of practical applications,and has been one of the hot topics in data stream mining.In this paper,a comprehensive survey on data stream change detection was presented,and the key task of change detection was introduced.An inductive unifying framework of change detection process was also given.Besides,a variety of already existing change detection approaches and their features were reviewed and evaluated in detail.Finally,the research outlook of data stream change detection was discussed.