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Bayesian Model Selection for Addressing Cold-Start Problems in Partitioned Time Series Prediction

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  • Jaeseong Yoo

    (Statistical Ground, Seoul 06979, Republic of Korea)

  • Jihoon Moon

    (Department of AI and Big Data, Soonchunhyang University, Asan 31538, Republic of Korea)

Abstract

How to effectively predict outcomes when initial time series data are limited remains unclear. This study investigated the efficiency of Bayesian model selection to address the lack of initial data for time series analysis, particularly in cold-start scenarios—a common challenge in predictive modeling. We utilized a comprehensive approach that juxtaposed observational data against various candidate models through strategic partitioning. This method contrasted traditional reliance on distance measures like the L 2 norm. Instead, it applied statistical tests to validate model efficacy. Notably, the introduction of an interactive visualization tool featuring a slide bar for setting significance levels marked a significant advancement over conventional p -value displays. Our results affirm that when observational data align with a candidate model, effective predictions are possible, albeit with necessary considerations of stationarity and potential structural breaks. These findings underscore the potential of Bayesian methods in predictive analytics, especially when initial data are scarce or incomplete. This research not only enhances our understanding of model selection dynamics but also sets the stage for future investigations into more refined predictive frameworks.

Suggested Citation

  • Jaeseong Yoo & Jihoon Moon, 2024. "Bayesian Model Selection for Addressing Cold-Start Problems in Partitioned Time Series Prediction," Mathematics, MDPI, vol. 12(17), pages 1-43, August.
  • Handle: RePEc:gam:jmathe:v:12:y:2024:i:17:p:2682-:d:1466347
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    References listed on IDEAS

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