ON THE RELATIONS BETWEEN MODELING APPROACHES FOR SPEECH RECOGNITION

被引:25
作者
EPHRAIM, Y
RABINER, LR
机构
[1] AT&T Bell Laboratories, Murray Hill, NJ 07974
关键词
D O I
10.1109/18.52483
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Some relations among approaches that have been applied to estimating models for acoustic signals in speech recognition systems are examined. In particular, the maximum likelihood (ML), maximum mutual information (MMI), and minimum discrimination information (MDI) modeling approaches are studied. It is shown that all three approaches can be formulated uniformly as MDI modeling approaches for simultaneous estimation of the acoustic models for all words in the vocabulary and that none of the approaches requires any model correctness assumption. The three approaches differ in the effective source being modeled and in the probability distribution attributed to this source. © 1990 IEEE
引用
收藏
页码:372 / 380
页数:9
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