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Regression and time series model selection in small samples

1989/01/01 by Clifford M. Hurvich, Chih‐Ling Tsai · 35 citations
Engineering · Mathematics · Computer Science · #Control Systems and Identification #Statistical Methods and Inference #Neural Networks and Applications #Akaike information criterion #Autoregressive model #Mathematics #STAR model #Series (stratigraphy) #Model selection #SETAR #Statistics #Sample size determination #Autoregressive integrated moving average #Information Criteria #Applied mathematics #Time series #Dimension (graph theory) #Regression analysis #Selection (genetic algorithm) #Combinatorics #Computer science #Artificial intelligence

paper · doi:10.1093/biomet/76.2.297

openalex publication_date 1989/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A bias correction to the Akaike information criterion, AIC, is derived for regression and autoregressive time series models. The correction is of particular use when the sample size is small, or when the number of fitted parameters is a moderate to large fraction of the sample size. The corrected method, called AICC, is asymptotically efficient if the true model is infinite dimensional. Furthermore, when the true model is of finite dimension, AICC is found to provide better model order choices than any other asymptotically efficient method. Applications to nonstationary autoregressive and mixed autoregressive moving average time series models are also discussed.

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