Adaptive Learning with Covariate Shift-Detection for Non-Stationary Environments

Haider Raza, G Prasad, Yuhua Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)
374 Downloads (Pure)

Abstract

Learning with data-set shift is a major challenge in non-stationary environments wherein the input data distribution may shift over time. Detecting the data-set shift point in the time-series data, where the distribution of time-series shifts its properties, is of utmost interest. Data-set shift exists in a broad range of real-world systems. In such systems, there is a need for continuous monitoring of the process behavior and tracking the state of the shift so as to decide about initiating adaptation in a timely manner. This paper presents an adaptive learning algorithm with data-set shift-detection using an exponential weighted moving average (EWMA) model based test in a non-stationary environment. The proposed method initiates the adaptation by re-configuring the knowledge-base of the classifier. This algorithm is suitable for real-time learning in non-stationary environments. Its performance is evaluated through experiments using synthetic data-sets. Results show that it reacts well to different co-variate shifts.
Original languageEnglish
Title of host publicationUnknown Host Publication
PublisherIEEE
Number of pages8
DOIs
Publication statusPublished - 8 Sep 2014
Event2014 14th UK Workshop on Computational Intelligence (UKCI) - Bradford, UK
Duration: 8 Sep 2014 → …

Workshop

Workshop2014 14th UK Workshop on Computational Intelligence (UKCI)
Period8/09/14 → …

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