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Issue:
Research on Topic Extraction from Uighur Comment Text
Author(s):
YU Long
,
TIAN Shengwei
,
HUANG Jun
Pages:
103
-
112
Year:
2013
Issue:
4
Journal:
Journal of Chinese Information Processing
Keyword:
topic extraction
;
claim level
;
explicit topic
;
implicit topic
;
Uighur
;
Abstract:
主题抽取是意见挖掘的核心任务之一.该文面向维吾尔语评论文本,针对显式主题和隐式主题,提出了一种陈述级的主题抽取方法.该方法采用GLR-Cascaded LDA模型抽取段落级的局部主题、篇章级的全局主题,建立全局—局部主题关系,并将这些关系对应到每个意见陈述中;然后运用Bootstrapping和模式匹配的方法进行显式陈述的主题抽取;最后使用隐式主题推断算法推断隐式陈述的主题.主题抽取的最终目标是为每个意见陈述建立意见陈述—主题四元组<OC,GT,LT,CT>.实验结果证明了该方法在主题抽取任务中的有效性.
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