细粒度意见挖掘中维吾尔语文本情感分析研究

Sentiment Analysis of Uyghur Text for Fine-grained Opinion Mining

传统的情感分析研究通过分析,确定词语、句子或篇章的情感,但忽略了情感表达的主题。针对这一不足,该文提出了一种基于双层CRFs模型的细粒度意见挖掘中维吾尔语意见型文本陈述级情感分析方法。第一层模型识别意见型文本中的主题词和意见词,确定意见陈述的范围,并将识别结果传递给第二层模型,将其作为重要特征之一,用于陈述级情感分析。细粒度意见挖掘中情感分析的目标是构建<意见陈述,主题词,意见词,情感>四元组。该方法用于维吾尔语陈述级情感分析的准确率为77.41%,召回率为78.51%,证明了该方法在细粒度意见挖掘中情感分析任务上的有效性。

Traditional research on sentiment analysis is to determine the sentiment of word,sentence or the whole text,ignoring the topics involved in the sentimental expressions In contrast,this paper proposes a method based on cascade CRFs model to analyze the sentiment at claim level of Uyghur opinioned text.The first layer extracts the topic word and its corresponding opinion word,and determines the scope of opinioned claim,and the result is then passed to the second layer as one of the key features which contributes to sentiment analysis at the claim level.The goal of the sentiment analysis on fine-grained opinion mining is to build a quadruple,which is <opinioned claim,topic word,opinion word,sentiment>.Our experiments show that the precision rate and the recall rate of sentiment analysis reach 77.41% and 78.51%,respectively,demonstrating the efficiency of the proposed method on fine-grained sentiment analysis.