Automatic Complexity Control of Generalized Variable Parameter HMMs for Noise Robust Speech Recognition
文献类型：期刊论文
| 作者 | Rongfeng Su; Xunying Liu; Lan Wang |
| 刊名 | IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING
 |
| 出版日期 | 2015 |
| 英文摘要 | An important part of the acoustic modelling problem for automatic speech recognition (ASR) systems is to handle the mismatch against a target environment created by time-varying external factors such as ambient noise. One possible solution to this problem is to introduce controllability to the underlying acoustic model to allow an instantaneous adaptation to the underlying noise condition. Along this line, the continuous trajectory of optimal, well matched model parameters against the varying noise can be explicitly modelled using, for example, generalized variable parameter HMMs (GVP-HMM). In order to improve the generalization and computational efficiency of conventional GVP-HMMs, this paper investigates a novel model complexity control method for GVP-HMMs. The optimal polynomial degrees of Gaussian mean, variance and model space linear transform trajectories are automatically determined at local level. Significant error rate reductions of 20\% and 28\% relative were obtained over the multi-style training baseline systems on Aurora 2 and a medium vocabulary Mandarin Chinese speech recognition task respectively. Consistent performance improvements and model size compression of 60\% relative were also obtained over the baseline GVP-HMM systems using a uniformly assigned polynomial degree. |
| 收录类别 | SCI |
| 原文出处 | http://delivery.acm.org/10.1145/2740000/2736121/p102-su.pdf?ip=210.75.252.211&id=2736121&acc=ACTIVE%20SERVICE&key=33E289E220520BFB%2E6FFDCCEC948C43C2%2E4D4702B0C3E38B35%2E4D4702B0C3E38B35&CFID=684351880&CFTOKEN=16936555&__acm__=1434612374_3f1ccee60f0b359a8b9afb70dc47e91c |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/6583]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING |
| 推荐引用方式 GB/T 7714 | Rongfeng Su,Xunying Liu,Lan Wang. Automatic Complexity Control of Generalized Variable Parameter HMMs for Noise Robust Speech Recognition[J]. IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING,2015. |
| APA | Rongfeng Su,Xunying Liu,&Lan Wang.(2015).Automatic Complexity Control of Generalized Variable Parameter HMMs for Noise Robust Speech Recognition.IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING. |
| MLA | Rongfeng Su,et al."Automatic Complexity Control of Generalized Variable Parameter HMMs for Noise Robust Speech Recognition".IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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