Improved Keyword-Spotting Using SRI’s DECIPHER™ Large-Vocabuarly Speech-Recognition System Mitchel Weintraub author 1993 text Human Language Technology: Proceedings of a Workshop Held at Plainsboro, New Jersey, March 21-24, 1993 conference publication weintraub-1993-improved https://aclanthology.org/H93-1022/ 1993