Consistent Bayesian information criterion based on a mixture prior for possibly high‐dimensional multivariate linear regression models

Haruki Kono and Tatsuya Kubokawa

Scandinavian Journal of Statistics, 2023, vol. 50, issue 3, 1022-1047

Abstract: In the problem of selecting variables in a multivariate linear regression model, we derive new Bayesian information criteria based on a prior mixing a smooth distribution and a delta distribution. Each of them can be interpreted as a fusion of the Akaike information criterion (AIC) and the Bayesian information criterion (BIC). Inheriting their asymptotic properties, our information criteria are consistent in variable selection in both the large‐sample and the high‐dimensional asymptotic frameworks. In numerical simulations, variable selection methods based on our information criteria choose the true set of variables with high probability in most cases.

Date: 2023
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https://doi.org/10.1111/sjos.12617

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