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New Results with the Lincoln Tied-Mixture HMM CSR System 1

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  • [acl.ldc.upenn.edu]
  • [www.aclweb.org]
  • [wing.comp.nus.edu.sg]
  • [ucrel.lancs.ac.uk]

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BibTeX

@MISC{_newresults,
    author = {},
    title = {New Results with the Lincoln Tied-Mixture HMM CSR System 1},
    year = {}
}

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Abstract

The following describes recent work on the Lincoln CSR system. Some new variations in semiphone modeling have been tested. A very simple improved duration model has reduced the error rate by about 10 ~ in both triphone and semiphone systems. A new training strategy has been tested which, by itself, did not provide useful improvements but suggests that improvements can be obtained by a related rapid adaptation technique. Finally, the recognizer has been modified to use bigram back-off language models. The sys-tem was then transferred from the RM task to the ATIS CSR task and a limited number of development tests per-formed. Evaluation test results are presented for both the RM and ATIS CSR tasks.

Keyphrases

new result    lincoln tied-mixture hmm csr system    atis csr task    semiphone modeling    new training strategy    duration model    new variation    rm task    semiphone system    useful improvement    lincoln csr system    related rapid adaptation technique    bigram back-off language model    following describes recent work    evaluation test result    error rate    development test    limited number   

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