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한국인 영어학습자 발화의 자동음성인식을 위한 영어 음성사전 구성 : Implementation of a non-native pronunciation dictionary for automatic recognition of utterances by Korean learners of English

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Authors
장태엽
Issue Date
2006
Publisher
서울대학교 인문대학 인문학연구원
Citation
인문논총, Vol.56, pp. 99-122
Keywords
영어학습자의 발음사전발음변이
Abstract
This paper introduces a way of enhancing automatic speech recognition
systems in processing non-native speakers utterances. The key procedure is to
design and provide an English pronunciation dictionary which includes frequent
error pronunciations by Korean learners as if they were regular pronunciation
variations. First, knowledge-based rules are collected to generate as many nonnative
variants as possible. Then the relative frequency of each variant is
measured to select more frequent error-variants while discarding rare ones. In
automatic recognition experiments with this dictionary, it is found that the word
recognition performance increases considerably for Korean learners incorrect
pronunciation. Although utterances by Korean learners of English are the main
target data of the current study, the proposed method is expected to be further
available in other language environments.
ISSN
1598-3021
Language
Korean
URI
https://hdl.handle.net/10371/29669
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College of Humanities (인문대학)Institute of Humanities (인문학연구원)Journal of humanities (인문논총)Journal of Humanities vol.56 (2006) (인문논총)
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