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タイトル: | Chinese-Japanese Machine Translation Exploiting Chinese Characters |
著者: | Chu, Chenhui https://orcid.org/0000-0001-9848-6384 (unconfirmed) Nakazawa, Toshiaki Kawahara, Daisuke Kurohashi, Sadao |
著者名の別形: | 褚, 晨翚 中澤, 敏明 河原, 大輔 黒橋, 禎夫 |
発行日: | Oct-2013 |
出版者: | Association for Computing Machinery |
誌名: | ACM Transactions on Asian Language Information Processing |
巻: | 12 |
号: | 4 |
論文番号: | 16 |
抄録: | The Chinese and Japanese languages share Chinese characters. Since the Chinese characters in Japanese originated from ancient China, many common Chinese characters exist between these two languages. Since Chinese characters contain significant semantic information and common Chinese characters share the same meaning in the two languages, they can be quite useful in Chinese-Japanese machine translation (MT). We therefore propose a method for creating a Chinese character mapping table for Japanese, traditional Chinese, and simplified Chinese, with the aim of constructing a complete resource of common Chinese characters. Furthermore, we point out two main problems in Chinese word segmentation for Chinese-Japanese MT, namely, unknown words and word segmentation granularity, and propose an approach exploiting common Chinese characters to solve these problems. We also propose a statistical method for detecting other semantically equivalent Chinese characters other than the common ones and a method for exploiting shared Chinese characters in phrase alignment. Results of the experiments carried out on a state-of-the-art phrase-based statistical MT system and an example-based MT system show that our proposed approaches can improve MT performance significantly, thereby verifying the effectiveness of shared Chinese characters for Chinese-Japanese MT. |
著作権等: | © 2013 ACM, Inc. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/179788 |
DOI(出版社版): | 10.1145/2523057.2523059 |
出現コレクション: | 学術雑誌掲載論文等 |
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