Semantic patterns for user-interactive question answering

Authors:
Tianyong Hao;Dawei Hu;Liu Wenyin;Qingtian Zeng
Affiliations:
Department of Computer Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China;Department of Computer Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China;Department of Computer Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China;Department of Computer Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China
Venue:
Concurrency and Computation: Practice & Experience - Second International Conference on Semantics, Knowledge and Grid (SKG2006)
Year:
2008

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Abstract

A new type of semantic pattern is proposed in this paper, which can be used by users to post questions and answers in user-interactive question answering (QA) systems. The necessary procedures of using semantic patterns in a QA system are also presented, which include question structure analysis, pattern matching, pattern generation, pattern classification and answer extraction. Both the manual creation method and the automatic generation method are proposed for patterns for different applications. A pattern instantiation level metrics is also presented for the predication of the quality of generated or learned patterns. We implemented a user interface for using the semantic pattern in our QA system, which allows users to effectively post and answer questions. Copyright © 2007 John Wiley & Sons, Ltd.