NDLI: Mandarin-English bilingual phone modeling and combining MPE based Discriminative training for cross-language speech recognition

Content Provider	IEEE Xplore Digital Library
Author	Yanmin Qian Jia Liu
Copyright Year	2010
Description	Author affiliation: Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing, China (Yanmin Qian; Jia Liu)
Abstract	Automatic multilingual speech recognition is always a difficult task. This paper presents recent work on the development of a Mandarin-English bilingual speech recognition system. Firstly a universal set of bilingual acoustic models based on a novel State-Time-Alignment (STA) method is proposed to balance the performance and the complexity of the bilingual speech recognition system. Then Discriminative training approaches such as discriminative Gaussian training using the minimum phone error (MPE) criterion and the discriminatively trained feature transform fMPE, which are proved to improved monolingual recognition performance, are modified to manage bilingual speech recognition system. A new method is applied to generate significantly better lattices for training the bilingual model, and complementary discriminative training methods are also explored to get the best ROVER performance in the bilingual situation. Experimental results show that the STA phone clustering method outperforms other existing phone clustering methods. Furthermore both forms of discriminative training reduce the word error rate of the multilingual system, and combining complementary discriminative training methods improves the performance significantly.
Starting Page	103
Ending Page	108
File Size	226322
Page Count	6
File Format	PDF
ISBN	9781424462445
e-ISBN	9781424462469
DOI	10.1109/ISCSLP.2010.5684841
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-29
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	phone clustering bilingual speech recognition system combination discriminative training
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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