TESTING THE EFFECTIVE VOCABULARY CAPACITY METHOD OF EVALUATING SPEECH RECOGNIZERS (paper presented at the ESCA Workshop, Noordwijkerhout, the Netherlands, 20-23 September 1989)

Authors
  1. Van de Vegte, J.M.E.
  2. Taylor, M.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The performance of isolated-word speech recognizers is typically measured using error rates. To obtain reliable error rate estimates for good recognizers can require many thousands of subject utterances, and the better the recognizer, the more sensitive the error rate is to the actual challenge vocabulary and the skill of the talker. The Effective Vocabulary Capacity (EVC) is the maximum vocabulary that a recognizer can in principle handle at a given error rate. It relies on measures that are relatively independent of the challenge vocabulary and which require only tens or hundreds of test utterances. The EVC algorithm is tested for both synthetic and real recognizer data.
Report Number
DCIEM-89-P-43 — Research Paper
Date of publication
01 Jan 1989
Number of Pages
5
DSTKIM No
89-04398
CANDIS No
62280
Format(s):
Hardcopy;Originator's fiche received by DSIS

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