{"title":"部分功能线性分位数回归模型及剔除指标的变量选择","authors":"Chengxin Wu , Nengxiang Ling , Philippe Vieu , Wenjuan Liang","doi":"10.1016/j.jmva.2023.105189","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>In this paper, we study the quantile regression<span> (QR) estimation for the partially functional linear model with the responses being right-censored and the censoring indicators being missing at random (MAR). Firstly, we construct the weighted QR estimators for both the infinite-dimensional slope function and the finite </span></span>scalar parameters<span> of the model by combining the methods of calibration, imputation and inverse probability weighting. Then, some </span></span>asymptotic properties<span><span> such as the convergence rate of the estimator for the slope function and the asymptotic distribution of the estimator for the finite scalar parameters are obtained respectively. Moreover, to select the scalar </span>covariates in the model, we also give a variable selection procedure by the method of adaptive LASSO penalty and establish the oracle property of the proposed weighted penalized estimators simultaneously. Finally, some simulation studies and a real data analysis are carried out to show the performances of the proposed methods.</span></p></div>","PeriodicalId":16431,"journal":{"name":"Journal of Multivariate Analysis","volume":"197 ","pages":"Article 105189"},"PeriodicalIF":1.4000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Partially functional linear quantile regression model and variable selection with censoring indicators MAR\",\"authors\":\"Chengxin Wu , Nengxiang Ling , Philippe Vieu , Wenjuan Liang\",\"doi\":\"10.1016/j.jmva.2023.105189\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span>In this paper, we study the quantile regression<span> (QR) estimation for the partially functional linear model with the responses being right-censored and the censoring indicators being missing at random (MAR). Firstly, we construct the weighted QR estimators for both the infinite-dimensional slope function and the finite </span></span>scalar parameters<span> of the model by combining the methods of calibration, imputation and inverse probability weighting. Then, some </span></span>asymptotic properties<span><span> such as the convergence rate of the estimator for the slope function and the asymptotic distribution of the estimator for the finite scalar parameters are obtained respectively. Moreover, to select the scalar </span>covariates in the model, we also give a variable selection procedure by the method of adaptive LASSO penalty and establish the oracle property of the proposed weighted penalized estimators simultaneously. Finally, some simulation studies and a real data analysis are carried out to show the performances of the proposed methods.</span></p></div>\",\"PeriodicalId\":16431,\"journal\":{\"name\":\"Journal of Multivariate Analysis\",\"volume\":\"197 \",\"pages\":\"Article 105189\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Multivariate Analysis\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0047259X23000350\",\"RegionNum\":3,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"STATISTICS & PROBABILITY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Multivariate Analysis","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0047259X23000350","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"STATISTICS & PROBABILITY","Score":null,"Total":0}
Partially functional linear quantile regression model and variable selection with censoring indicators MAR
In this paper, we study the quantile regression (QR) estimation for the partially functional linear model with the responses being right-censored and the censoring indicators being missing at random (MAR). Firstly, we construct the weighted QR estimators for both the infinite-dimensional slope function and the finite scalar parameters of the model by combining the methods of calibration, imputation and inverse probability weighting. Then, some asymptotic properties such as the convergence rate of the estimator for the slope function and the asymptotic distribution of the estimator for the finite scalar parameters are obtained respectively. Moreover, to select the scalar covariates in the model, we also give a variable selection procedure by the method of adaptive LASSO penalty and establish the oracle property of the proposed weighted penalized estimators simultaneously. Finally, some simulation studies and a real data analysis are carried out to show the performances of the proposed methods.
期刊介绍:
Founded in 1971, the Journal of Multivariate Analysis (JMVA) is the central venue for the publication of new, relevant methodology and particularly innovative applications pertaining to the analysis and interpretation of multidimensional data.
The journal welcomes contributions to all aspects of multivariate data analysis and modeling, including cluster analysis, discriminant analysis, factor analysis, and multidimensional continuous or discrete distribution theory. Topics of current interest include, but are not limited to, inferential aspects of
Copula modeling
Functional data analysis
Graphical modeling
High-dimensional data analysis
Image analysis
Multivariate extreme-value theory
Sparse modeling
Spatial statistics.