[Statlist] Next talk: Friday, November 25, 2011 with Yanyuan Ma, Texas A&M University

[Susanne Kaiser-Heinzmann]

ETH and University of Zurich

Proff. P. Buehlmann -  L. Held - H.R. Kuensch -
M. Maathuis -  S. van de Geer - M. Wolf


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We are glad to announce the following talk
Friday, November 25, 2011, 15.15h, HG G 19.1

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by Yanyuan Ma,  Texas A&M University, Department of Statistics


Title:

A Semiparametric View to Dimension Reduction

Abstract:

We provide a novel and completely different approach to dimension  
reduction problems from the existing literature.  We cast the  
dimension reduction problem in a semiparametric estimation framework  
and derive estimating equations. Viewing this problem from the new  
angle allows us to derive a rich class of estimators, and obtain the  
classical dimension reduction techniques as special cases in this  
class. The semiparametric approach also reveals that in the inverse  
regression context while keeping the estimation structure intact, the  
common assumption of linearity and/or constant variance on the  
covariates can be removed at the cost of performing additional  
nonparametric regression.  The semiparametric estimators without these  
common assumptions are illustrated through simulation studies and a  
real data example.


The abstract is also to be found here:  http://stat.ethz.ch/events/research_seminar
_________________________________
ETH Zürich
Seminar für Statistik
Rämistrasse 101
CH-8092 Zürich
Tel: +41 446326518 Fax: +41 446321228
sekretariat at stat.math.ethz.ch








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