Title :
Integrating semantic constraints into the Sphinx-II recognition search
Author :
Ward, Wayne ; Issar, Sunil
Author_Institution :
Sch. of Comput. Sci., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
This paper describes a novel recursive transition network (RTN) speech decoder designed for robust processing of spontaneous spoken input. The system uses both stochastic and rule-based methods to constrain the recognition search. It is based on the multi-pass search used by the Sphinx-II speech decoder developed at Carnegie Mellon. We describe the basic decoder and system architectures and compare the system to our current loosely coupled system on spontaneous spoken dialogs from the DARPA air travel (ATIS) task
Keywords :
decoding; knowledge based systems; recursive estimation; speech coding; speech recognition; stochastic processes; DARPA air travel task; Sphinx-II recognition search; loosely coupled system; multi-pass search; recursive transition network; robust processing; rule-based methods; semantic constraints; speech decoder; spontaneous spoken dialogs; spontaneous spoken input; stochastic methods; system architecture; Computer science; Decoding; Humans; Natural languages; Process design; Robustness; Speech processing; Speech recognition; Stochastic processes; Stochastic systems;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389729
