Robust speech recognition method based on discriminative environment feature extraction
文献类型：期刊论文
| 作者 | Han, JQ; Gao, W |
| 刊名 | JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2001-09-01 |
| 卷号 | 16期号:5页码:458-464 |
| 关键词 | robust speech recognition minimum classification error environmental parameter discriminative learning |
| ISSN号 | 1000-9000 |
| 英文摘要 | It is an effective approach to learn the influence of environmental parameters, such as additive noise and channel distortions, from training data for robust speech recognition. Most of the previous methods are based on maximum likelihood estimation criterion. However, these methods do not lead to a minimum error rate result. In this paper, a novel discriminative learning method of environmental parameters, which is based on Minimum Classification Error (MCE) criterion, is proposed. In the method, a simple classifier and the Generalized Probabilistic Descent (GPD) algorithm are adopted to iteratively learn the environmental parameters. Consequently, the clean speech features are estimated from the noisy speech features with the estimated environmental parameters, and then the estimations of clean speech features are utilized in the back-end HMM classifier. Experiments show that the best error rate reduction of 32.1% is obtained, tested on a task of 18 isolated confusion Korean words, relative to a conventional HMM system. |
| WOS研究方向 | Computer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000171323100008 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/13375]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Han, JQ |
| 作者单位 | 1.Harbin Inst Technol, Dept Comp Engn & Sci, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, JQ,Gao, W. Robust speech recognition method based on discriminative environment feature extraction[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2001,16(5):458-464. |
| APA | Han, JQ,&Gao, W.(2001).Robust speech recognition method based on discriminative environment feature extraction.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,16(5),458-464. |
| MLA | Han, JQ,et al."Robust speech recognition method based on discriminative environment feature extraction".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 16.5(2001):458-464. |
入库方式： OAI收割
来源：计算技术研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。