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Theory of Probability and Mathematical Statistics

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The asymptotic behavior of threshold-based classification rules constructed from a sample from a mixture with varying concentrations


Authors: Yu. Ivan’ko and R. Maĭboroda
Translated by: Oleg Klesov
Journal: Theor. Probability and Math. Statist. 74 (2007), 37-47
MSC (2000): Primary 62H30; Secondary 62G07
DOI: https://doi.org/10.1090/S0094-9000-07-00696-5
Published electronically: June 25, 2007
MathSciNet review: 2336777
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Abstract | References | Similar Articles | Additional Information

Abstract: We consider a problem on finding the best threshold-based classification rule constructed from a sample from a mixture with varying concentrations. We show that the rate of convergence of the minimal empirical risk estimators to the optimal threshold is of order $N^{-1/3}$ for smooth distributions, while the rate of convergence of the Bayes empirical estimators is of order $N^{-2/5}$ where $N$ is the size of a sample.


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Additional Information

Yu. Ivan’ko
Affiliation: SK Lemma-Vite, Brats’ka Street, Kyiv, 6, 04070 Ukraine
Email: ivanko@lemma-insur.com.ua

R. Maĭboroda
Affiliation: Department of Probability Theory and Mathematical Statistics, Faculty for Mathematics and Mechanics, National Taras Shevchenko University, Glushkov Avenue, 6, Kyiv, 03127, Ukraine
Email: mre@univ.kiev.ua

Keywords: Minimization of the empirical risk, kernel estimators of densities, Bayes empirical classification rule, estimates of components of a mixture, mixtures with varying concentrations
Received by editor(s): December 20, 2004
Published electronically: June 25, 2007
Article copyright: © Copyright 2007 American Mathematical Society