Skip to content

Detail of publication


Bartoš, T. and Müller, L. : Confidence measure for rejection of incorrectly recognized words . ECMS 2003, p. 7-11, Technical University, Liberec, 2003.


This paper wishes to contribute to the research activities in the field of detection of incorrectly recognized words during automatic speech recognition. In this paper we describe our original detection technique of incorrectly recognized words and compare it to the one we previously used. Our speech recognition system is based on a speaker-independent continuous density Hidden Markov Model and a dedicated phone sequence recognizing network, which we call a mumble model. The incorrectly recognized word detection method is fully statistically based and uses a MLE (EM) approach to estimate the parameters of statistical models determining the confidence of automatic speech recognition results. We use two kinds of models: the acceptation model and the rejection model. According to their names, the acceptation model corresponds to the words that were correctly recognized, while the rejection one represents all other words, i.e. the misrecognized and out of vocabulary words, they cannot be recognized at all.

Detail of publication

Title: Confidence measure for rejection of incorrectly recognized words
Author: Bartoš, T. ; Müller, L.
Language: English
Date of publication: 2 Jun 2003
Year: 2003
Type of publication: Papers in proceedings of reviewed conferences
Title of journal or book: ECMS 2003
Page: 7 - 11
ISBN: 80-7083-708-X
Publisher: Technical University
Address: Liberec
Date: 2 Jun 2003 - 4 Jun 2003
/ /


rejection, out of vocabulary words, confidence measure


 author = {Barto\v{s}, T. and M\"{u}ller, L.},
 title = {Confidence measure for rejection of incorrectly recognized words},
 year = {2003},
 publisher = {Technical University},
 journal = {ECMS 2003},
 address = {Liberec},
 pages = {7-11},
 ISBN = {80-7083-708-X},
 url = {},