A confidence based tree structured decoder for private automatic branch exchange

被引：0
|
作者：
Liu, J [1 ]
Liu, J [1 ]
Zhu, X [1 ]
Xu, B [1 ]
机构：
[1] Tsing Hua Univ, Dept Elect Engn, Natl Lab Patter Recognit, Beijing 100084, Peoples R China
来源：
2000 5TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, VOLS I-III | 2000年
关键词：
confidence measures; speech verification; keyword detection; speech recognition;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
High performance voice controlled Private Automatic Branch Exchange (PABX) is a difficult task to achieve, especially when users are not required to follow a rigid speaking format. By-incorporating hierarchical confidence measures into a tree structured PABX decoder, the keyword accuracy is increased from 89.86% to; 92.63%. Further improvement is made by a confidence measure based postprocessor, which rejects 5.68% of all testing utterances and improves the accuracy to 97.18%.
引用
收藏
页码：772 / 775
页数：4
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