Wang, Xiaoying; Jiang, Song; Yin, Junping - In: Journal of Multivariate Analysis 105 (2012) 1, pp. 258-275
This paper is concerned with the conditional bias and variance of local quadratic regression to the multivariate … mainly the fitting precision, we extend their results on the asymptotic bias and variance. Using the data sharpening … bias and variance of the estimator at the interior and boundary points of the support of the density function. …