We propose methods of English-Japanese and Japanese-English cross language question-answering (E-J/J-E CLQA) that use machine translation (MT), transliteration, and an existing Japanese QA system that deeply depends on Japanese. With regard to the E-J task, in order to compensate the insufficiencies in the bilingual dictionary of an MT system, we utilize the documents on the Web to translate proper nouns. We also introduce a pattern-matching-based question type detection in the source language in order to cope with translation errors. With regard to the J-E task, we adopt a standard CLIR technique, namely, the bilingual-dictionary-based keyword translation in order to retrieve English documents relevant to Japanese
['Tatsunori Mori', 'Masami Kawagishi']
A Method of Cross Language Question-Answering Based on Machine Translation and Transliteration — Yokohama National University at NTCIR-5 CLQA1 —