係り受け制約の文脈自由文法への組み込み法

田辺 利文, 冨浦 洋一, 日高 達

doi:10.15017/1474973

係り受け制約の文脈自由文法への組み込み法

DOI HANDLE 被引用文献5件オープンアクセス

田辺利文

九州大学大学院システム情報科学研究院知能システム学専攻 : 博士後期課程
冨浦洋一

九州大学大学院システム情報科学研究院知能システム学専攻
日高達

九州大学大学院システム情報科学研究院知能システム学専攻

書誌事項

タイトル別名

The Method of Building the Dependency Constraint into a Context Free Grammar

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抄録

In Natural Languages Processing, there are lots of syntax trees corresponding to a input sentence. If we can choose the correct syntax tree meaningfully, the quality of the processing is improved. Conventionally, we have used selectional restrictions. But semantic categories used in selectional restrictions are so rough that we couldn't choose the correct syntactic structure precisely. This paper shows the method of building the dependency constraint into a context free grammar by subdividing nonterminals according to the meaning of the phrase generated from the nonterminal and by grasping production rules from superordinate-subordinate relation of their meanings in the thesaurus.