Research on the model of speech recognition and understanding by using hierarchical information feedback

Autor: Lin Biqin, Yuan Baozong, Jiang Minghu
Rok vydání: 1999
Předmět:
Zdroj: Journal of Electronics (China). 16:208-214
ISSN: 1993-0615
0217-9822
DOI: 10.1007/s11767-999-0017-3
Popis: In this paper according to the process of cognitive of human being to speech is put forward a model of speech recognition and understanding in a noisy environment. For speech recognition, two level modular Extended Associative Memory Neural Networks (EAMNN) are adopted. The learning speed is 9 times faster than that of the conventional BP net. It has high self-adaptability, robustness, fault toleration and associative memory ability to the noisy signals. To speech understanding, the structure of hierarchical analysis and examining faults which is a combination of statistic inference and syntactic rules is adopted, to pick up the candidates of the speech recognition and to predict the next word by the statistic inference base; and the syntactic rule base reduces effectively the recognition errors and candidates of acoustic level; then by comparing and rectifying errors through information feedback and guiding the succeeding speech process, the recognition of the sentence is realized.
Databáze: OpenAIRE