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JOURNALS // Avtomatika i Telemekhanika // Archive

Avtomat. i Telemekh., 2019 Issue 8, Pages 44–63 (Mi at15315)

This article is cited in 4 papers

Stochastic Systems

Stochastic approximation algorithm with randomization at the input for unsupervised parameters estimation of Gaussian mixture model with sparse parameters

A. A. Boyarovab, O. N. Granichinab

a St. Petersburg State University, St. Petersburg, Russia
b Institute for Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia

Abstract: We consider the possibilities of using stochastic approximation algorithms with randomization on the input under unknown but bounded interference in studying the clustering of data generated by a mixture of Gaussian distributions. The proposed algorithm, which is robust to external disturbances, allows us to process the data “on the fly” and has a high convergence rate. The operation of the algorithm is illustrated by examples of its use for clustering in various difficult conditions.

Keywords: clustering, unsupervised learning, randomization, stochastic approximation, Gaussian mixture model.


Received: 01.06.2017
Revised: 19.12.2018
Accepted: 07.02.2019

DOI: 10.1134/S0005231019080051


 English version:
Automation and Remote Control, 2019, 80:8, 1403–1418

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© Steklov Math. Inst. of RAS, 2024