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High Breakdown Estimation for Multiple Populations with Applications to Discriminant Analysis

✍ Scribed by Xuming He; Wing K Fung

Book ID
102602076
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
143 KB
Volume
72
Category
Article
ISSN
0047-259X

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✦ Synopsis

We consider S-estimators of multivariate location and common dispersion matrix in multiple populations. Instead of averaging the robust estimates of the individual covariance matrices, as used by Todorov, Neykov and Neytchev (1990), the observations are pooled for estimating the common covariance more efficiently. Two such proposals are evaluated by a breakdown point analysis and Monte Carlo simulations. Their applications to the discriminant analysis are also considered.

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