李 映,孔 芳. 基于中心理论和话语结构的交互式问答文本指代消解[J]. 中文信息学报, 2016, 30(4): 90-97.
LI Ying, KONG Fang. Centering Theory and Discourse Structure Based Approach to Coreference Resolution for Interactive Question Answering Text. , 2016, 30(4): 90-97.
基于中心理论和话语结构的交互式问答文本指代消解
李 映,孔 芳
苏州大学 计算机科学与技术学院,江苏 苏州 215006
Centering Theory and Discourse Structure Based Approach to Coreference Resolution for Interactive Question Answering Text
LI Ying, KONG Fang
School of Computer Science and Technology, Soochow University, Suzhou, Jiangsu 215006,China
Abstract：The interactive question answering texts is rich in linguistic phenomena. Taking this a advantage, a novel coreference resolution approach for interactive question answering text is proposed. On basis of shallow sematic role analysis, the discourse structure is identified, upon which the preferred center and types center shift are further identified. These form a new feature set related to centering theory and discourse structure. Experiments on TREC2004 to TREC2007 corpora show that the proposed approach can significantly improve the performance of coreference resolution about 3.2% in F-measure for interactive question answering texts.
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2016, Vol. 30 
