“语句”与“代词”的设定对指代消解的影响--一项向心理论参数化实证研究  

Effects of centering parameter setting of "utterance" and "R1-pronoun" on Chinese anaphora resolution

作　　者：许余龙[1] 段嫚娟[1] 付相君[2] 

机构地区：[1]上海外国语大学,200083 [2]华东理工大学

出　　处：《现代外语》2008年第2期111-120,共10页Modern Foreign Languages

基　　金：国家社会科学基金资助项目(批准号:05BYY036);上海外国语大学青年社科项目

摘　　要：本文采用向心理论的参数化研究方法,设计了六种指代消解算法,通过对标注语料的分析,初步探讨了"语句"与"代词"这两个参数的设定对汉语指代消解的影响。结果表明,总体来说,无论采用基于哪种确定Cf显著度排序的算法,1)语句的设定对代词指代消解的影响要比零形代词小;2)将语句设定为小句所得到的零形代词消解结果,要普遍优于将语句设定为自然句;3)汉语代词的指代消解准确率要远低于零形代词的消解准确率。This paper adopts a parametric approach to the Centering Theory and examines the effects of the setting of two Centering parameters(i.e.'utterance' and 'R1-pronoun') on the resolution of Chinese pronouns.Six anaphora resolution algorithms were designed by using different indicators of Cf salience and were run on the annotated corpora containing authentic Chinese texts.The results show that,overall,1) the setting of the 'utterance' parameter has a much weaker impact on the performance of pronoun resolution than on that of zero anaphora resolution,2) identifying utterances with clauses yields a significantly higher precision rate in zero anaphora resolution than identifying them with sentences,and 3) the algorithms perform much more poorly in pronoun resolution than in zero anaphora resolution.

关 键 词：指代消解 向心理论 参数化研究 

分 类 号：H030[语言文字—语言学]