On the determination of epsilon during discriminative GMM training


Autoria(s): Guido, Rodrigo Capobianco; Chen, Shi-Huang; Junior, Sylvio Barbon; Souza, Leonardo Mendes; Vieira, Lucimar Sasso; Rodrigues, Luciene Cavalcanti; Escola, Joao Paulo Lemos; Zulato, Paulo Ricardo Franchi; Lacerda, Michel Alves; Ribeiro, Jussara
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/12/2010

Resumo

Discriminative training of Gaussian Mixture Models (GMMs) for speech or speaker recognition purposes is usually based on the gradient descent method, in which the iteration step-size, ε, uses to be defined experimentally. In this letter, we derive an equation to adaptively determine ε, by showing that the second-order Newton-Raphson iterative method to find roots of equations is equivalent to the gradient descent algorithm. © 2010 IEEE.

Formato

362-364

Identificador

http://dx.doi.org/10.1109/ISM.2010.66

Proceedings - 2010 IEEE International Symposium on Multimedia, ISM 2010, p. 362-364.

http://hdl.handle.net/11449/72054

10.1109/ISM.2010.66

2-s2.0-79951728004

Idioma(s)

eng

Relação

Proceedings - 2010 IEEE International Symposium on Multimedia, ISM 2010

Direitos

closedAccess

Palavras-Chave #Discriminative training of Gaussian Mixture Models (GMMs) #Markov Models #Speaker identification #Speech recognition #Discriminative training #Gaussian mixture models #Gradient descent algorithms #Gradient Descent method #Iteration step #Newton-Raphson iterative method #Second orders #Speaker recognition #Gaussian distribution #Iterative methods #Loudspeakers #Markov processes
Tipo

info:eu-repo/semantics/conferencePaper