Elementary discourse unit in chinese discourse structure analysis

Authors:
Yancui Li;Wenhe Feng;Guodong Zhou
Affiliations:
Department of Computer Science and Technology, Soochow University, Suzhou, Jiangsu, China, Henan Institute of Science and Technology, Xinxiang, China;Henan Institute of Science and Technology, Xinxiang, China;Department of Computer Science and Technology, Soochow University, Suzhou, Jiangsu, China
Venue:
CLSW'12 Proceedings of the 13th Chinese conference on Chinese Lexical Semantics
Year:
2012

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Abstract

Elementary Discourse Unit recognition is the primary task of discourse structure analysis. Different theories have different definition of Elementary Discourse Unit. Combined with Chinese discourse annotation practice, this paper defines clause as Elementary Discourse Unit. There is always punctuation at clause boundary in form, and we adopt different methods to deal with different punctuations. We annotate a certain scale of corpus which is labeled with whether punctuations are the boundary of clauses, and the accuracy of automatic recognizes clause is 90.7%. The experimental result shows that our definition of clause corresponds with Chinese character in theory and has strong distinction ability in calculation.