Research on Chinese negation and speculation: corpus annotation and identification

doi:10.1007/s11704-015-5101-2

Front. Comput. Sci.

2016, Vol. 10

Issue (6) : 1039-1051 https://doi.org/10.1007/s11704-015-5101-2

RESEARCH ARTICLE

Research on Chinese negation and speculation: corpus annotation and identification

Bowei ZOU,Guodong ZHOU,Qiaoming ZHU(

)

School of Computer Science and Technology, Soochow University, Suzhou 215006, China

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Abstract

Identifying negative or speculative narrative fragments from facts is crucial for deep understanding on natural language processing (NLP). In this paper, we firstly construct a Chinese corpus which consists of three sub-corpora from different resources. We also present a general framework for Chinese negation and speculation identification. In our method, first, we propose a feature-based sequence labeling model to detect the negative or speculative cues. In addition, a cross-lingual cue expansion strategy is proposed to increase the coverage in cue detection. On this basis, this paper presents a new syntactic structure-based framework to identify the linguistic scope of a negative or speculative cue, instead of the traditional chunking-based framework. Experimental results justify the usefulness of our Chinese corpus and the appropriateness of our syntactic structure-based framework which has showed significant improvement over the state-of-the-art on Chinese negation and speculation identification.

Keywords negation speculation cue detection scope resolution Chinese corpus

Corresponding Author(s): Qiaoming ZHU

Just Accepted Date: 10 October 2015 Online First Date: 11 May 2016 Issue Date: 11 October 2016

Cite this article:

Bowei ZOU,Guodong ZHOU,Qiaoming ZHU. Research on Chinese negation and speculation: corpus annotation and identification[J]. Front. Comput. Sci., 2016, 10(6): 1039-1051.

URL:

https://academic.hep.com.cn/fcs/EN/10.1007/s11704-015-5101-2
https://academic.hep.com.cn/fcs/EN/Y2016/V10/I6/1039

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