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中文摘要：
该文从情感的角度研究语境歧义词的搭配,这种搭配对文本情感倾向性分析方面具有实际重要的意义。首先使用关联规则挖掘的方法确定语境歧义词候选搭配集,然后通过PMI过滤后判断每对搭配词是否具有情感倾向性,最终构建语境歧义词搭配词典。采用语义分析的方法,在构建的语境歧义词搭配词典基础上对句子进行情感倾向性分析。通过在COAE2008语料集和情感语料库上进行实验,证明了在判断句子情感倾向性时考虑到语境歧义词的重要性,其对句子进行情感倾向性判断的正确率有很大的影响。
英文摘要：
This paper studies on the ambiguous collocations with the perspevtive to sentiment analysis,which are of substantial importance for text sentiment analysis.We use Association Rule to determine whether word pairs are collocations,cut off the unnecessary ones by PMI,and then resolve the collocation ambiguity.As a result,we build an ambiguous collocations dictionary,which is adopted in the sentencesentiment analysis.Experiments on the COAE2008 corpus show that ambiguous collocations are essential in the sentiment analysis,and it significantly influences the accuracy of sentiment analysis.
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