Results 11 to 20 of about 15,268,523 (297)

Optimal Smoothing in Single-Index Models

open access: yesAnnals of Statistics, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hidehiko Ichimura
exaly   +4 more sources

Distributional (Single) Index Models [PDF]

open access: yesJournal of the American Statistical Association, 2021
A Distributional (Single) Index Model (DIM) is a semi-parametric model for distributional regression, that is, estimation of conditional distributions given covariates. The method is a combination of classical single index models for the estimation of the conditional mean of a response given covariates, and isotonic distributional regression. The model
Henzi, Alexander   +2 more
core   +7 more sources

Variable selection for the single-index model [PDF]

open access: yesBiometrika, 2007
We consider variable selection in the single-index model. We prove that the popular leave-m-out crossvalidation method has different behaviour in the single-index model from that in linear regression models or nonparametric regression models. A new consistent variable selection method, called separated crossvalidation, is proposed.
Kong, E., Xia, Y.
openaire   +4 more sources

Analysis of Double Single Index Models. [PDF]

open access: yesScand Stat Theory Appl, 2017
Abstract Motivated from problems in canonical correlation analysis, reduced rank regression and sufficient dimension reduction, we introduce a double dimension reduction model where a single index of the multivariate response is linked to the multivariate covariate through a single index of these covariates, hence the name double ...
Chen K, Ma Y.
europepmc   +5 more sources

Statistical Inference for High-Dimensional Heteroscedastic Partially Single-Index Models [PDF]

open access: yesEntropy
In this study, we propose a novel penalized empirical likelihood approach that simultaneously performs parameter estimation and variable selection in heteroscedastic partially linear single-index models with a diverging number of parameters.
Jianglin Fang, Zhikun Tian
doaj   +2 more sources

Robust Variable Selection Based on Penalized Composite Quantile Regression for High-Dimensional Single-Index Models

open access: yesMathematics, 2022
The single-index model is an intuitive extension of the linear regression model. It has been increasingly popular due to its flexibility in modeling. In this work, we focus on the estimators of the parameters and the unknown link function for the single ...
Yunquan Song, Zitong Li, Minglu Fang
doaj   +3 more sources

SiAM: A Hybrid of Single Index Models and Additive Models. [PDF]

open access: yesElectron J Stat, 2017
While popular, single index models and additive models have potential limitations, a fact that leads us to propose SiAM, a novel hybrid combination of these two models. We first address model identifiability under general assumptions. The result is of independent interest.
Ma S, Lian H, Liang H, Carroll RJ.
europepmc   +4 more sources

A bootstrap test for single index models [PDF]

open access: yesStatistics, 2001
Single index models are frequently used in econometrics and biometrics. Logit and Probit models arc special cases with fixed link functions. In this paper we consider a bootstrap specification test that detects nonparametric deviations of the link function.
Enno Mammen, Proença I
exaly   +7 more sources

Estimation for single-index and partially linear single-index integrated models

open access: yesAnnals of Statistics, 2016
Published at http://dx.doi.org/10.1214/15-AOS1372 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Jití Gao   +2 more
exaly   +4 more sources

Single-index regression models [PDF]

open access: yes, 2015
Indiana University-Purdue University Indianapolis (IUPUI) ; Useful medical indices pose important roles in predicting medical outcomes. Medical indices, such as the well-known Body Mass Index (BMI), Charleson Comorbidity Index, etc., have been used extensively in research and clinical practice, for the quantification of risks in individual patients ...
Wu, Jingwei
openaire   +3 more sources

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