Automatic Pronominal Anaphora Resolution in English Texts

• Main Authors: Dian-Song Wu, 吳典松
• Other Authors: Tyne Liang
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/57480193336231648137

碩士 === 國立交通大學 === 資訊科學系 === 91 === Anaphora is a common phenomenon in discourses as well as an important research issue in the applications of natural language processing. Traditionally, anaphora resolution systems rely on syntactic, semantic or pragmatic clues to identify the antecedent of an anaphor. In this thesis, the resolution of anaphora is achieved by employing WordNet ontology and heuristic rules. The proposed system identifies both intra-sentential and inter-sentential antecedents of anaphors. Information about animacy is obtained by analyzing the hierarchical relation of nouns and verbs in the surrounding context. The identification of animacy entities and pleonastic-it usage in English discourses are employed to promote the resolution accuracy.