The MIT SUMMIT Speech Recognition system: a progress report
HLT '89 Proceedings of the workshop on Speech and Natural Language
Automatic discovery of contextual factors describing phonological variation
HLT '89 Proceedings of the workshop on Speech and Natural Language
HLT '90 Proceedings of the workshop on Speech and Natural Language
Large-vocabulary speaker-independent continuous speech recognition: the sphinx system
Large-vocabulary speaker-independent continuous speech recognition: the sphinx system
The MIT ATIS system: February 1992 progress report
HLT '91 Proceedings of the workshop on Speech and Natural Language
Context dependent vector quantization for continuous speech recognition
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: speech processing - Volume II
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In 1989, our group first reported on the development of SUMMIT, a segment-based speaker-independent continuous-speech recognition system [13]. The initial version of SUMMIT made use of fairly simple context-independent models for the lexical labels. Recently, we have begun to incorporate more complex models of lexical labels that take into account a variety of contextual factors. These changes, along with an improved corrective training procedure for adapting pronunciation are weights and a larger set of training data, have resulted in the reduction of error rate by almost a factor of two on the Resource Management task.