We propose a link-free procedure for testing whether two multi-index models share identical indices via the sufficient …

linear single-index models, of which the univariate nonparametric link function is approximated by local polynomial …

index models that feature one separate index for each spouse, which interact nonparametrically in the determination of power …

The varying-coefficient single-index models (VCSIMs) form a class of very flexible and general dimension reduction … models, which contain many important regression models such as partially linear models, pure single-index models …, partially linear single-index models, varying-coefficient models and so on as special examples. However, the testing problems of the …

In this paper, we consider the partially linear single-index models with longitudinal data. We propose the bias …

Single index models are natural extensions of linear models and overcome the so-called curse of dimensionality. They …, we propose a new robust and efficient estimation procedure based on local modal regression for single index models. The …

We propose an easy to use derivative based two-step estimation procedure for semi-parametric index models. In the first …