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