向心参数的设定对指代消解结果影响的原因分析  

An analysis of the effects of centering parameter setting on anaphora resolution

作　　者：段嫚娟[1] 许余龙[1] 付相君[2] 

机构地区：[1]上海外国语大学 [2]华东理工大学

出　　处：《当代语言学》2012年第3期221-233,329,共13页Contemporary Linguistics

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

摘　　要：通过分析向心参数的不同设定对指代消解结果的影响,特别是对未获得正确消解的指代情况的考察,本文发现:(1)基于向心理论的消解算法更适用于零形代词消解,代词消解规律不同于零形代词;(2)Cb连贯性不是具有压倒性优势的显著性特征;(3)综合考虑语法角色和句法结构层次的Cf显著性排序能够更加准确地反映语篇实体的显著度;(4)合理划分语句对指代消解具有重要意义。This paper reports some findings following the analysis of the effects that different settings of centering parameters have on Chinese discourse anaphora resolution,especially in those unresolved cases.First,algorithms based on Centering Theory in general are more effective for zero anaphora resolution than for pronominal anaphora resolution.Second,Cb continuity is not a predominant factor in determining the salience of discourse entities.Third,Cf ranking scheme that takes into consideration both the grammatical roles and hierarchical sentence structures can more accurately reflect the salience of discourse entities.Fourth and last,accurate and reliable parsing of Chinese sentences is a prerequisite for anaphora resolution.

关 键 词：向心理论 指代消解 算法比较 

分 类 号：H04[语言文字—语言学]