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Computation of robust estimates of multivariate location and shape

 

作者: D. M. Rocke,   D. L. Woodruff,  

 

期刊: Statistica Neerlandica  (WILEY Available online 1993)
卷期: Volume 47, issue 1  

页码: 27-42

 

ISSN:0039-0402

 

年代: 1993

 

DOI:10.1111/j.1467-9574.1993.tb01404.x

 

出版商: Blackwell Publishing Ltd

 

关键词: breakdown;genetic algorithms;heuristic search;M‐estimators;minimum volume ellipsoid;outliers;simulated anneating;tabu search

 

数据来源: WILEY

 

摘要:

This paper reviews the state of the art in the computation of robust estimates of multivariate location and shape using combinatorial estimators such as the minimum volume ellipsoid (MVE) and iterativeM‐and S‐estimators. We also present new results on the behavior ofM‐and S‐estimators in the presence of different types of outliers, and give the first computational evidence on compound estimators that use the MVE as a starting point for an S‐estimator. Problems with too many data points in too many dimensions cannot be handled by any available technology; however, the methods presented in this paper substantially extend the size of problem that can be successfull

 

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