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Issue No.06 - June (1990 vol.12)
pp: 570-583
ABSTRACT
<p>Speech-recognition systems must often decide between competing ways of breaking up the acoustic input into strings of words. Since the possible strings may be acoustically similar, a language model is required; given a word string, the model returns its linguistic probability. Several Markov language models are discussed. A novel kind of language model which reflects short-term patterns of word use by means of a cache component (analogous to cache memory in hardware terminology) is presented. The model also contains a 3g-gram component of the traditional type. The combined model and a pure 3g-gram model were tested on samples drawn from the Lancaster-Oslo/Bergen (LOB) corpus of English text. The relative performance of the two models is examined, and suggestions for the future improvements are made.</p>
INDEX TERMS
cache-based natural language model; speech recognition; word string; linguistic probability; Markov language models; Lancaster-Oslo/Bergen; English text; Markov processes; natural languages; probability; speech recognition
CITATION
R. Kuhn, R. De Mori, "A Cache-Based Natural Language Model for Speech Recognition", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.12, no. 6, pp. 570-583, June 1990, doi:10.1109/34.56193
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