基于语音检索的侦听系统的实现与优化
Implementation and Optimization of Interception System Based on Speech Retrieval

作者: 倪慧婷 , 赵晓群 :同济大学电信学院,上海 ;

关键词: 聚类分析相关性判决关键词识别语音检索侦听Cluster Analysis Correlation Judgment Keyword Recognition Speech Retrieval Interception

摘要:
本文以基于关键词识别的语音检索技术为基础,结合自适应的相关性过滤模块,构建了优化的侦听系统。对基于语音检索的侦听系统从两方面进行了改进和优化:一是以上下文相关的声韵母作为关键词识别的声学建模基元,二是添加相关性判决模块对与主题无关的语音进行再过滤。实验数据证实,相关性判决模块能以召回率的小部分牺牲换取系统查准率的大幅度提升。

Abstract: Based on the technology of speech retrieval and combined with the adaptive correlation filter module, an optimized interception system is constructed. The interception system based on speech retrieval is improved and optimized from two aspects. One is using context related initial- final as the acoustic model of keyword recognition. The other is putting forward a correlation judgment module to re-filter the speech documents that have nothing to do with the subject. Confirmed by the experimental data, the great enhancement of system precision can be obtained by small sacrifice of recall rate while using correlation judgment module.

文章引用: 倪慧婷 , 赵晓群 (2015) 基于语音检索的侦听系统的实现与优化。 电路与系统, 4, 15-21. doi: 10.12677/OJCS.2015.41003

参考文献

[1] 韩疆, 刘晓星, 颜永红, 张鹏远, 潘接林 (2005) 一种任务域无关的语音关键词检测系统. 全国网络与信息安全技术研讨会'2005论文集(下册), 信息产业部互联网应急处理协调办公室, 7.

[2] 李曜, 刘加 (2007) 基于汉语语音学决策树构建语音识别声学建模方法研究. 全国网络与信息安全技术研讨会论文集(下册), 信息产业部互联网应急处理协调办公室, 6.

[3] 李净, 徐明星, 张继勇, 郑方, 吴文虎, 方棣棠 (2001) 汉语连续语音识别中声学模型基元比较:音节、音素、声韵母. 第六届全国人机语音通讯学术会议论文集, 5.

[4] Lee, C., Rabiner, L., Pieraccini, R. and Wilpon, J. (1990) Acoustic modeling for large vocabulary speech recognition. Computer Speech and Language, 4, 127-165.

[5] Youngand, S.J. and Woodland, P.C. (1994) Tree-based state tying for high accuracy acoustic modeling. Proceedings of Human Language Technology Workshop, March 1994, 307-312.

[6] 李春青 (2015) 文本聚类算法研究. 软件导刊, 01, 74-76.

[7] 孙建旺, 吕学强, 张雷瀚 (2013) 基于语义与最大匹配度的短文本分类研究. 计算机工程与设计, 10, 3613-3618.

[8] 熊大康 (2014) 中文短文本分类技术的研究与实现. 安徽大学, 合肥.

分享
Top