A fuzzy varying coefficient model and its estimation. - Si-Lian Shen; Chang-Lin Mei; Jian-Ling Cui (Comput. Math. Appl., 2010)

Testing Heteroscedasticity in Nonparametric Regression Based on Trend Analysis. - Si-Lian Shen; Jian-Ling Cui; Chun-Wei Wang (J. Appl. Math., 2014)

Estimation and inference of semi-varying coefficient models with heteroscedastic errors. - Si-Lian Shen; Jian-Ling Cui; Chang-Lin Mei; Chun-Wei Wang (J. Multivar. Anal., 2014)