Paper Info
Title
High-Order Hidden Markov Model and Application to Continuous Mandarin Digit Recognition.
Abstract
The duration and spectral dynamics of speech signal are modeled as the duration high-order hidden Markov model (DHO-HMM). Both the state transition probability and output observation probabilities depend not only on the current state but also several previous states. Recursive formulas have been derived for the calculation of the log-likelihood score of optimal partial paths. The high-order state is expanded into several equivalent first-order states and the token passing algorithm is used to implement an extended Viterbi decoding algorithm on our DHO-HMM continuous speech recognition system. Experimental results on continuous Mandarin digit recognition show that DHO-HMM can improve the recognition accuracy.
Year
Venue
Keywords
2011
JOURNAL OF INFORMATION SCIENCE AND ENGINEERING
high-order,hidden Markov model,speech recognition,duration modeling,Viterbi algorithm
Field
DocType
Volume
Token passing,Forward algorithm,Markov model,Computer science,Speech recognition,Viterbi decoder,Hidden Markov model,Viterbi algorithm,Recursion,Hidden semi-Markov model
Journal
27
Issue
ISSN
Citations 
6
1016-2364
3
PageRank 
References 
Authors
0.47
5
1
Name
Order
Citations
PageRank
Lee-Min Lee1468.10