月旦知識庫
 
  1. 熱門:
 
首頁 臺灣期刊   法律   公行政治   醫事相關   財經   社會學   教育   其他 大陸期刊   核心   重要期刊 DOI文章
中文計算語言學期刊 本站僅提供期刊文獻檢索。
  【月旦知識庫】是否收錄該篇全文,敬請【登入】查詢為準。
最新【購點活動】


篇名
An Empirical Study of Word Error Minimization Approaches for Mandarin Large Vocabulary Continuous Speech Recognition
作者 Kuo, Jen-wei (Kuo, Jen-wei)Liu, Shih-hung (Liu, Shih-hung)Wang, Hsin-min (Wang, Hsin-min)Chen, Berlin (Chen, Berlin)
中文摘要
This paper presents an empirical study of word error minimization approaches for Mandarin large vocabulary continuous speech recognition (LVCSR). First, the minimum phone error (MPE) criterion, which is one of the most popular discriminative training criteria, is extensively investigated for both acoustic model training and adaptation in a Mandarin LVCSR system. Second, the word error minimization (WEM) criterion, used to rescore N-best word strings, is appropriately modified for a Mandarin LVCSR system. Finally, a series of speech recognition experiments is conducted on the MATBN Mandarin Chinese broadcast news corpus. The experiment results demonstrate that the MPE training approach reduces the character error rate (CER) by 12% for a system initially trained with the maximum likelihood (ML) approach. Meanwhile, for unsupervised acoustic model adaptation, MPE-based linear regression (MPELR) adaptation outperforms conventional maximum likelihood linear regression (MLLR) in terms of CER reduction. When the WEM decoding approach is used for N-best rescoring, a slight performance gain over the conventional maximum a posteriori (MAP) decoding method is also observed.
起訖頁 201-222
關鍵詞 Broadcast newsContinuous speech recognitionDiscriminative trainingMinimum phone errorWord error minimization
刊名 中文計算語言學期刊  
期數 200609 (11:3期)
出版單位 中華民國計算語言學學會
該期刊-上一篇 An Approach to Using the Web as a Live Corpus for Spoken Transliteration Name Access
該期刊-下一篇 Sense Extraction and Disambiguation for Chinese Words from Bilingual Terminology Bank
 

新書閱讀



最新影音


優惠活動




讀者服務專線:+886-2-23756688 傳真:+886-2-23318496
地址:臺北市館前路28 號 7 樓 客服信箱
Copyright © 元照出版 All rights reserved. 版權所有,禁止轉貼節錄