Segmentation algorithm for long time series analysis |
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Authors: | Abdullah Gedikli Hafzullah Aksoy N. Erdem Unal |
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Affiliation: | (1) Department of Civil Engineering, Hydraulics Division, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey |
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Abstract: | Time series analysis is an important issue in the earth science-related engineering applications such as hydrology, meteorology and environmetrics. Inconsistency and nonhomogeneity that might arise in a time series yield segments with different statistical characteristics. In this study, an algorithm based on the first order statistical moment (average) of a time series is developed and applied on five time series with length ranging from 84 items to nearly 1,300. Comparison to the existing segmentation algorithms proves the applicability and usefulness of the proposed algorithm in long hydrometeorological and geophysical time series analysis. |
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