Chunking using conditional random fields in Korean texts

被引:0
|
作者
Lee, YH
Kim, MY
Lee, JH
机构
[1] POSTECH, Div Elect & Comp Engn, Pohang 790784, South Korea
[2] AITrc, Pohang 790784, South Korea
关键词
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
We present a method of chunking in Korean texts using conditional random fields (CRFs), a recently introduced probabilistic model for labeling and segmenting sequence of data. In agglutinative languages such as Korean and Japanese, a rule-based chunking method is predominantly used for its simplicity and efficiency. A hybrid of a rule-based and machine learning method was also proposed to handle exceptional cases of the rules. In this paper, we present how CRFs can be applied to the task of chunking in Korean texts. Experiments using the STEP 2000 dataset show that the proposed method significantly improves the performance as well as outperforms previous systems.
引用
收藏
页码:155 / 164
页数:10
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