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篇名
Word Sense Disambiguation and Sense-Based NV Event Frame Identifier
作者 Tsai, Jia-lin (Tsai, Jia-lin)Hsu, Wen-lian (Hsu, Wen-lian)Su, Jeng-woei (Su, Jeng-woei)
中文摘要
Word sense is ambiguous in natural language processing (NLP). This phenomenon is particularly keen in cases involving noun-verb (NV) word-pairs. This paper describes a sense-based noun-verb event frame (NVEF) identifier that can be used to disambiguate word sense in Chinese sentences effectively. A knowledge representation system (the NVEF-KR tree) for the NVEF sense-pair identifier is also proposed. We use the word sense of Hownet, which is a Chinese-English bilingual knowledge-base dictionary. Our experiment showed that the NVEF identifier was able to achieve 74.8% accuracy for the test sentences studied based only on NVEF sense-pair knowledge. By applying the techniques of longest syllabic NVEF-word-pair first and exclusion word checking, the sense accuracy for the same test sentences could be further improved to 93.7%. There were four major reasons for the incorrect cases: (1) lack of a bottom-up tagger, (2) lack of non-NVEF knowledge, (3) inadequate word segmentation, and (4) lack of a multi-NVEF analyzer. If these four problems could be resolved, the accuracy would reach 98.9%. The results of this study indicate that NVEF sense-pair knowledge is effective for word sense disambiguation and is likely to be important for general NLP.
起訖頁 29-45
關鍵詞 Word sense disambiguationEvent frameTop-down identifierHownet
刊名 中文計算語言學期刊  
期數 200202 (7:1期)
出版單位 中華民國計算語言學學會
該期刊-上一篇 以構詞律與相似法為本的中文動詞自動分類研究
該期刊-下一篇 一種基於知網的語義排歧模型研究
 

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