Title :
Flexible use of semantic constraints in speech recognition
Author :
Ward, Wayne ; Young, Sheryl
Author_Institution :
Sch. of Comput. Sci., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
A novel recursive transition network speech decoder designed for robust processing of spontaneous spoken input is described. Two levels of stochastic language models are used in the recognition search as well as the rule-based network constraints. The authors describe the basic decoder and system architecture and evaluate the system against a loosely coupled system on spontaneous spoken dialogues from the DARPA Air Travel Information System (ATIS) task.<>
Keywords :
computational linguistics; constraint handling; search problems; speech recognition; stochastic systems; vocoders; Air Travel Information System; recursive transition network speech decoder; rule-based network constraints; semantic constraints; speech recognition; spontaneous spoken input; stochastic language models; system architecture;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on
Conference_Location :
Minneapolis, MN, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.1993.319226
