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Local prediction pools

delete2023-09-09
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OA
AI
O
Oscar Oelrich *
M
Mattias Villani
S
Sebastian Ankargren
DOI:10.1002/for.3030delete
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Abstract

Abstract

En 中文
We propose local prediction pools as a method for combining the predictive distributions of a set of experts conditional on a set of variables believed to be related to the predictive accuracy of the experts. This is done in a two-step process where we first estimate the conditional predictive accuracy of each expert given a vector of covariates-or pooling variables-and then combine the predictive distributions of the experts conditional on this local predictive accuracy. To estimate the local predictive accuracy of each expert, we introduce the simple, fast, and interpretable caliper method. Expert pooling weights from the local prediction pool approaches the equal weight solution whenever there is little data on local predictive performance, making the pools robust and adaptive. We also propose a local version of the widely used optimal prediction pools. Local prediction pools are shown to outperform the widely used optimal linear pools in a macroeconomic forecasting evaluation and in predicting daily bike usage for a bike rental company.
Keywords:
Bayesian predictive synthesis
combining forecasts
density forecasts
macroeconomic forecasting
nonparametric methods
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Journal

Journal of Forecasting cover
Journal of Forecasting
IF:
2.7
Papers:
2.3K
Citations:
3.0K

Organization

S
Stockholm University
Scholars:
1.8W
Papers: 1.7W
Citations: 32