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Generalized Procrustes analysis with iterative weighting to achieve resistance

 

作者: Peter Verboon,   K. Ruben Gabriel,  

 

期刊: British Journal of Mathematical and Statistical Psychology  (WILEY Available online 1995)
卷期: Volume 48, issue 1  

页码: 57-73

 

ISSN:0007-1102

 

年代: 1995

 

DOI:10.1111/j.2044-8317.1995.tb01050.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

The paper studies the generalized Procrustes problem with the extension of variable weights. A distinction is made between configurations and configuration classes, depending on the type of data used. The main interest is in configuration classes. Two different types of weighting are introduced: the Huber and Tukey weights. The objective is to use the weights to yield a resistant procedure for the generalized Procrustes problem. An algorithm is described and some attention is paid to the starting values in order to avoid non‐optimal solutions. An example and simulation results are presented which show that the weighted approach outperforms least squares when there are outliers in the dat

 

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