期刊
STATISTICAL PAPERS
卷 55, 期 2, 页码 349-374出版社
SPRINGER
DOI: 10.1007/s00362-012-0482-x
关键词
LASSO; Change-points; Selection criterion; Asymptotic behavior; Oracle properties
The paper considers a linear regression model with multiple change-points occurring at unknown times. The LASSO technique is very interesting since it allows simultaneously the parametric estimation, including the change-points estimation, and the automatic variable selection. The asymptotic properties of the LASSO-type (which has as particular case the LASSO estimator) and of the adaptive LASSO estimators are studied. For this last estimator the Oracle properties are proved. In both cases, a model selection criterion is proposed. Numerical examples are provided showing the performances of the adaptive LASSO estimator compared to the least squares estimator.
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