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