Research on Chinese negation and speculation： corpus annotation and identification

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 Chines...

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Bibliographic Details
Published in:Frontiers of Computer Science 2016-12, Vol.10 (6), p.1039-1051
Main Authors: ZOU, Bowei, ZHOU, Guodong, ZHU, Qiaoming
Format: Article
Language:English
Subjects:
Annotations
Chinese corpus
Computer Science
cue detection
Natural language processing
negation
Research Article
scope resolution
speculation
句法结构
否定
汉语语料库
注释
猜测
结构框架
自然语言处理
识别
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Summary: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.
ISSN:2095-2228
2095-2236
DOI:10.1007/s11704-015-5101-2