Elastic Partial Matching of Time Series

نویسندگان

  • Longin Jan Latecki
  • Vasileios Megalooikonomou
  • Qiang Wang
  • Rolf Lakämper
  • Chotirat Ratanamahatana
  • Eamonn J. Keogh
چکیده

We consider a problem of elastic matching of time series. We propose an algorithm that automatically determines a subsequence b′ of a target time series b that best matches a query series a. In the proposed algorithm we map the problem of the best matching subsequence to the problem of a cheapest path in a DAG (directed acyclic graph). Our experimental results demonstrate that the proposed algorithm outperforms the commonly used Dynamic Time Warping in retrieval accuracy.

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تاریخ انتشار 2005