Mathematical optimization for time series decomposition (original) (raw)

Abstract

Decomposing time series into trend and seasonality components reveals insights used in forecasting and anomaly detection. This study proposes a mathematical optimization approach that addresses several data-related issues in time series decomposition. Our approach does not only handle longer and multiple seasons but also identifies outliers and trend shifts. Numerical experiments on real-world and synthetic problem sets present the effectiveness of the proposed approach.

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Notes

  1. The user can purposefully set M value and limit trend shifts. We highlight even a large number does not lead to an unrealistic solution due to the rest of the constraints.
  2. Similar to the trend shift, the user can set M value if spikes or dips are to be bounded.

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Acknowledgements

The second author would like to thank Osman Aydemir Yetkin and Nedim Yılmaz, from Bıçakcılar Medical Devices, for helpful feedback on this work’s earlier numerical experiments’ forecasting performance. The authors also thank two anonymous referees and guest editors for their constructive comments and suggestions.

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Authors and Affiliations

  1. Department of Industrial Engineering, Ozyegin University, Istanbul, Turkey
    Seyma Gozuyilmaz & O. Erhun Kundakcioglu

Authors

  1. Seyma Gozuyilmaz
  2. O. Erhun Kundakcioglu

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Correspondence toO. Erhun Kundakcioglu.

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Gozuyilmaz, S., Kundakcioglu, O.E. Mathematical optimization for time series decomposition.OR Spectrum 43, 733–758 (2021). https://doi.org/10.1007/s00291-021-00637-w

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