Method evidence record

Time-Series Cross-Validation

Time-series cross-validation is a resampling procedure designed for sequentially ordered data. Instead of randomly partitioning observations — which would destroy temporal structure and introduce data leakage — it advances a forecast origin one step at a time, fitting a model on all past data up to that origin and evaluating it on the immediately following out-of-sample period. Economists, financial analysts, and meteorologists use it whenever an honest, operationally realistic estimate of predictive accuracy is required for a time-ordered process.

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Time-Series Cross-Validation (Rolling/Expanding Window)

Taxonomic method record · process-pipeline / econometrics

Bergmeir, C., & Benítez, J. M. (2012). On the use of cross-validation for time series predictor evaluation. Information Sciences, 191, 192–213. · DOI 10.1016/j.ins.2011.12.028

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Related methods

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