Title :
A Japanese text dictation system based on phoneme recognition and a dependency grammar
Author :
Makino, Shozo ; Ito, Akinori ; Endo, Mitsuru ; Kido, Ken´iti
Author_Institution :
Res. Center for Appl. Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
A prototype of a Japanese text dictation system has been developed. It is composed of an acoustic processor, a Bunsetsu-unit spotting processor, and a syntactic processor with semantic constraints. The acoustic processor is constructed using the modified LVQ2 method. The modified LVQ2 method achieves a high phoneme recognition performance of 86.1%. The syntax driven continuous DP matching algorithm is used for spotting Bunsetsu-units. This method greatly reduces the amount of computation and the storage capacity necessary for spotting the Bunsetsu units. Analysis of the dependency structure among the Bunsetsu-unit candidates is effectively carried out using the syntactic and semantic information
Keywords :
dictation; grammars; speech recognition; Bunsetsu-unit spotting processor; Japanese; acoustic processor; dependency grammar; learning vector quantisation; modified LVQ2 method; phoneme recognition; semantic constraints; speech recognition; syntactic processor; syntax driven continuous DP matching algorithm; text dictation system; Automata; Band pass filters; Cepstrum; Clustering algorithms; Clustering methods; Equations; Indium tin oxide; Lattices; Speech recognition; Text recognition;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150330
