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題名 Exploring heterogeneities with geographically weighted quantile regression: An enhancement based on the bootstrap approach
作者 陳怡如
Chen, Vivian Yi-Ju;Yang, Tse-Chuan;Matthews, Stephen A.
貢獻者 統計系
關鍵詞 heterogeneity; geographically weighted quantile regression; bootstrap method
日期 2020-10
上傳時間 29-Jan-2024 09:12:09 (UTC+8)
摘要 Geographically weighted quantile regression (GWQR) has been proposed as a spatial analytical technique to simultaneously explore two heterogeneities, one of spatial heterogeneity with respect to data relationships over space and one of response heterogeneity across different locations of the outcome distribution. However, one limitation of GWQR framework is that the existing inference procedures are established based on asymptotic approximation, which may suffer computation difficulties or yield incorrect estimates with finite samples. In this article, we suggest a bootstrap approach to address this limitation. Our bootstrap enhancement is first validated by a simulation experiment and then illustrated with an empirical U.S. mortality data. The results show that the bootstrap approach provides a practical alternative for inference in GWQR and enhances the utilization of GWQR.
關聯 Geographical Analysis, Vol.52, No.4, pp.642-661
資料類型 article
DOI https://doi.org/10.1111/gean.12229
dc.contributor 統計系
dc.creator (作者) 陳怡如
dc.creator (作者) Chen, Vivian Yi-Ju;Yang, Tse-Chuan;Matthews, Stephen A.
dc.date (日期) 2020-10
dc.date.accessioned 29-Jan-2024 09:12:09 (UTC+8)-
dc.date.available 29-Jan-2024 09:12:09 (UTC+8)-
dc.date.issued (上傳時間) 29-Jan-2024 09:12:09 (UTC+8)-
dc.identifier.uri (URI) https://nccur.lib.nccu.edu.tw/handle/140.119/149417-
dc.description.abstract (摘要) Geographically weighted quantile regression (GWQR) has been proposed as a spatial analytical technique to simultaneously explore two heterogeneities, one of spatial heterogeneity with respect to data relationships over space and one of response heterogeneity across different locations of the outcome distribution. However, one limitation of GWQR framework is that the existing inference procedures are established based on asymptotic approximation, which may suffer computation difficulties or yield incorrect estimates with finite samples. In this article, we suggest a bootstrap approach to address this limitation. Our bootstrap enhancement is first validated by a simulation experiment and then illustrated with an empirical U.S. mortality data. The results show that the bootstrap approach provides a practical alternative for inference in GWQR and enhances the utilization of GWQR.
dc.format.extent 98 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Geographical Analysis, Vol.52, No.4, pp.642-661
dc.subject (關鍵詞) heterogeneity; geographically weighted quantile regression; bootstrap method
dc.title (題名) Exploring heterogeneities with geographically weighted quantile regression: An enhancement based on the bootstrap approach
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1111/gean.12229
dc.doi.uri (DOI) https://doi.org/10.1111/gean.12229