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The Scientific World Journal
Volume 2014, Article ID 312521, 19 pages
http://dx.doi.org/10.1155/2014/312521
Review Article

A Review of Subsequence Time Series Clustering

Department of Information Systems, Faculty of Computer Science and Information Technology, University of Malaya (UM), 50603 Kuala Lumpur, Malaysia

Received 23 February 2014; Revised 5 June 2014; Accepted 23 June 2014; Published 21 July 2014

Academic Editor: Jesus A. Gonzalez

Copyright © 2014 Seyedjamal Zolhavarieh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Clustering of subsequence time series remains an open issue in time series clustering. Subsequence time series clustering is used in different fields, such as e-commerce, outlier detection, speech recognition, biological systems, DNA recognition, and text mining. One of the useful fields in the domain of subsequence time series clustering is pattern recognition. To improve this field, a sequence of time series data is used. This paper reviews some definitions and backgrounds related to subsequence time series clustering. The categorization of the literature reviews is divided into three groups: preproof, interproof, and postproof period. Moreover, various state-of-the-art approaches in performing subsequence time series clustering are discussed under each of the following categories. The strengths and weaknesses of the employed methods are evaluated as potential issues for future studies.