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  • Volume 12, Issue 3

AUG-Segmenter: a user-friendly tool for segmentation of long time series

Abdullah Gedikli, Hafzullah Aksoy, N. Erdem Unal
Published July 2010, 12 (3) 318-328; DOI: 10.2166/hydro.2009.084
Abdullah Gedikli
Department of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey E-mail: haksoy@itu.edu.tr
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Hafzullah Aksoy
Department of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey E-mail: haksoy@itu.edu.tr
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N. Erdem Unal
Department of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey E-mail: haksoy@itu.edu.tr
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Abstract

In this study, three algorithms are presented for time series segmentation. The first algorithm is based on the branch-and-bound approach, the second on the dynamic programming while the third is a modified version of the latter into which the remaining cost concept of the former is introduced. A user-friendly computer program called AUG-Segmenter is developed. Segmentation-by-constant and segmentation-by-linear-regression can be performed by the program. The program is tested on real-world time series of thousands of terms and found useful in performing segmentation satisfactorily and fast.

  • branch-and-bound approach
  • change point
  • dynamic programming
  • remaining cost
  • segmentation
  • time series
  • First received 29 November 2008.
  • Accepted in revised form 11 June 2009.
  • © IWA Publishing 2010
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Journal of Hydroinformatics: 20 (2)
  Volume 12, Issue 3

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AUG-Segmenter: a user-friendly tool for segmentation of long time series
Abdullah Gedikli, Hafzullah Aksoy, N. Erdem Unal
Journal of Hydroinformatics Jul 2010, 12 (3) 318-328; DOI: 10.2166/hydro.2009.084
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AUG-Segmenter: a user-friendly tool for segmentation of long time series
Abdullah Gedikli, Hafzullah Aksoy, N. Erdem Unal
Journal of Hydroinformatics Jul 2010, 12 (3) 318-328; DOI: 10.2166/hydro.2009.084

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Keywords

branch-and-bound approach
change point
dynamic programming
remaining cost
segmentation
time series
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