Title :
CCLMDS´96: towards a speaker-independent large-vocabulary Mandarin dictation system
Author :
Chiang, TungHui ; Pengwu, Chung-Mou ; Chien, Shih-Chieh ; Chang, Chao-Huang
Author_Institution :
Adv. Technol Center, Taiwan, China
Abstract :
This paper presents the first known results for the speaker-independent large-vocabulary Mandarin dictation system, namely CCLMDS´96, developed by the Computer and Communication Research Laboratories (CCL) at the Industrial Technology Research Institute (ITRI). First, a fast searching algorithm is proposed to improve the searching efficiency such that the CCLMDS´96 can operate in real time running on a personal computer. In addition, a discriminative scoring function is proposed to integrate the speech recognizer and the word-class-based bigram language model. With this discriminative scoring function, the system attains a word accuracy rate of 91.3%, which significantly outperforms the conventional integration approach
Keywords :
dictation; grammars; microcomputer applications; natural languages; search problems; speech recognition; CCL; CCLMDS´96; Computer and Communication Research Laboratories; ITRI; Industrial Technology Research Institute; discriminative scoring function; fast searching algorithm; large-vocabulary Mandarin dictation system; personal computer; real time operation; searching efficiency; speaker-independent dictation system; speech recognizer; word accuracy rate; word class based bigram language model; Chaotic communication; Communication industry; Computer industry; Dynamic range; Hidden Markov models; Laboratories; Microcomputers; Natural languages; Speech recognition; Vocabulary;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.598885
