Kang Seung Sig , Yun Bo Hyeon , U Jong U

The KIPS Transactions:PartB , Vol. 11, No. 2, pp. 227-232, Apr. 2004
10.3745/KIPSTB.2004.11.2.227,   PDF Download:

Abstract

When we extract a representative term from text for information retrieval system or a special information for information retrieval and text mining system, we often need to solve the anaphora resolution problem. The antecedent decision problem of a pronoun is one of the major issues for anaphora resolution. In this paper, we are suggesting a method of deciding an antecedent of the third personal pronouns, such as ´he/she/they´ to analyze the contents of documents precisely. Generally, the antecedent of the third personal pronouns seem to be the subject of the current statement or previous statement, and also it occasionally happens more than twice. Based on these characteristics, we have found rules for deciding an antecedent, by investigating a case of being an antecedent from the personal pronouns, which appears in the current statement and the previous statements. Since the heuristic rule differs on the case of the third personal pronouns, we described it as subjective case, objective case, and possessive case based on the case of the pronouns. We collected 300 sentences that include a pronoun from the newspaper articles on political issues. The result of our experiment shows that the recall and precision ratio on deciding the antecedent of the third personal pronouns are 79.0% and 86.8%, respectively.

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