This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.
Abstract Details
Activity Number:
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76
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Type:
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Contributed
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Date/Time:
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Sunday, August 1, 2010 : 4:00 PM to 5:50 PM
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Sponsor:
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Section on Nonparametric Statistics
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Abstract - #306769 |
Title:
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Estimating the Central Kth Moment Space via an Extension of Ordinary Least Squares
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Author(s):
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Yuexiao Dong*+ and Zhou Yu
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Companies:
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Temple University and East China Normal University
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Address:
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1301 N Clayton St. Apt 3, Wilmington, DE, 19806,
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Keywords:
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Central kth moment space ;
Central solution space ;
Dimension reduction subspace ;
Non-elliptical distribution
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Abstract:
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Various sufficient dimension reduction methods have been proposed to find linear combinations of predictor X, which contain all the regression information of response Y versus X. If we are only interested in the partial information contained in the mean function or the kth moment function of Y given X, estimation of the central mean space (CMS) or the central k-th moment space (CKMS) becomes our focus. However, existing OLS-type estimators for CMS and CKMS require a linearity assumption on the predictor distribution. In this paper, we relax this stringent limitation via the notion of central solution space (CSS). Central kth moment solution space is introduced and its estimators are compared with existing methods by simulation.
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