评价短语的倾向性分析研究

评价短语是评价因子之一,是汉语倾向性研究的重要组成部分。评价短语可以分为“评价词+评价词”、“修饰词+评价词”、“普通词+评价词”、“修饰词+普通词”、“普通词+普通词”5类。评价短语类型不同,采用的倾向性分析策略也不同。短语计算规则和短语评价词典的互动是该文采用的基本方法。在制定短语计算规则时应遵守共性与个性相结合的原则;建立短语评价词典时应遵循最小评价因子原则。实验证明,短语计算规则与短语词典的建立提高了倾向性分析系统的准确率,是一种行之有效的方法。

Research on Orientation analysis of Opinion Phrases

The opinion phrases,as one of the opinion factors,is an important aspect of Chinese orientation analysis. The opinion phrases can be classified as 5 types,i.e. “opinion word + opinion word”,“modifier + opinion word”,“non-opinion word + opinion word”,“modifier + non-opinion word”,“non-opinion word + non-opinion word”. With each type,different orientation analysis strategy is applied on the basis of combination of applying phrase rules and opinion phrases lexicon. Phrase rules should be organized as specific rules and common rules. The establishment of opinion phrases lexicon should be obey the rule of minimum opinion factors. The experiment shows that the precision of orientation analysis is improved effectively with the applying of phrase rules and opinion phrases lexicon.
Key wordsopinion phrases; Sentiment Analysis; opinion phrases lexicon; opinion phrase rules; rule of minimum opinion factors