LREC 2000 - Papers

LREC 2000 2^nd International Conference on Language Resources & Evaluation

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Title Automatic Transliteration and Back-transliteration by Decision Tree Learning

Authors Kang Byung-Ju (Department of Computer Science Advanced Information Technology Research Center (AITrc) Korea Terminology Center for Language and Knowledge Engineering Korea Advanced Institute of Science and Technology 373-1 Kusong-dong, Yusong-gu, Taejon, 305-701, Korea, bjkang@world.kaist.ac.kr)
Choi Key-Sun (Korea Terminology Research Center for Language and Knowledge Engineering, Department of Computer Science, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu Taejon 305-701 Korea, kschoi@korterm.kaist.ac.kr)

Keywords

Session Session WP6 - Tools in the Written Area

Abstract Automatic transliteration and back-transliteration across languages with drastically different alphabets and phonemes inventories such as English/Korean, English/Japanese, English/Arabic, English/Chinese, etc, have practical importance in machine translation, cross-lingual information retrieval, and automatic bilingual dictionary compilation, etc. In this paper, a bi-directional and to some extent language independent methodology for English/Korean transliteration and back-transliteration is described. Our method is composed of character alignment and decision tree learning. We induce transliteration rules for each English alphabet and back-transliteration rules for each Korean alphabet. For the training of decision trees we need a large labeled examples of transliteration and back-transliteration. However this kind of resources are generally not available. Our character alignment algorithm is capable of highly accurately aligning English word and Korean transliteration in a desired way.

Title	Automatic Transliteration and Back-transliteration by Decision Tree Learning
Authors	Kang Byung-Ju (Department of Computer Science Advanced Information Technology Research Center (AITrc) Korea Terminology Center for Language and Knowledge Engineering Korea Advanced Institute of Science and Technology 373-1 Kusong-dong, Yusong-gu, Taejon, 305-701, Korea, bjkang@world.kaist.ac.kr) Choi Key-Sun (Korea Terminology Research Center for Language and Knowledge Engineering, Department of Computer Science, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu Taejon 305-701 Korea, kschoi@korterm.kaist.ac.kr)
Keywords
Session	Session WP6 - Tools in the Written Area
Abstract	Automatic transliteration and back-transliteration across languages with drastically different alphabets and phonemes inventories such as English/Korean, English/Japanese, English/Arabic, English/Chinese, etc, have practical importance in machine translation, cross-lingual information retrieval, and automatic bilingual dictionary compilation, etc. In this paper, a bi-directional and to some extent language independent methodology for English/Korean transliteration and back-transliteration is described. Our method is composed of character alignment and decision tree learning. We induce transliteration rules for each English alphabet and back-transliteration rules for each Korean alphabet. For the training of decision trees we need a large labeled examples of transliteration and back-transliteration. However this kind of resources are generally not available. Our character alignment algorithm is capable of highly accurately aligning English word and Korean transliteration in a desired way.