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Robust variable selection with exponential squared loss for partially linear spatial autoregressive models

Robust variable selection with exponential squared loss for partially linear spatial... In this paper, we consider variable selection for a class of semiparametric spatial autoregressive models based on exponential squared loss (ESL). Using the orthogonal projection technique, we propose a novel orthogonality-based variable selection procedure that enables simultaneous model selection and parameter estimation, and identifies the significance of spatial effects. Under appropriate conditions, we show that the proposed procedure is consistent and the resulting estimator has oracle properties. Furthermore, some simulation studies and an analysis of the Boston housing price data are also carried out to examine the finite-sample performance of the proposed method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of the Institute of Statistical Mathematics Springer Journals

Robust variable selection with exponential squared loss for partially linear spatial autoregressive models

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References (29)

Publisher
Springer Journals
Copyright
Copyright © The Institute of Statistical Mathematics, Tokyo 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
0020-3157
eISSN
1572-9052
DOI
10.1007/s10463-023-00870-w
Publisher site
See Article on Publisher Site

Abstract

In this paper, we consider variable selection for a class of semiparametric spatial autoregressive models based on exponential squared loss (ESL). Using the orthogonal projection technique, we propose a novel orthogonality-based variable selection procedure that enables simultaneous model selection and parameter estimation, and identifies the significance of spatial effects. Under appropriate conditions, we show that the proposed procedure is consistent and the resulting estimator has oracle properties. Furthermore, some simulation studies and an analysis of the Boston housing price data are also carried out to examine the finite-sample performance of the proposed method.

Journal

Annals of the Institute of Statistical MathematicsSpringer Journals

Published: Dec 1, 2023

Keywords: Orthogonal projection; Exponential squared loss; Semiparametric spatial autoregressive models; Oracle property; Variable selection

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