Aspect term extraction for sentiment analysis in large movie reviews using Gini Index feature selection method and SVM classifier

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• 作者：Asha S Manek ; P Deepa Shenoy ; M Chandra Mohan ; Venugopal K R
• 关键词：Gini Index ; Feature selection ; Reviews ; Sentiment ; Support Vector Machine (SVM)
• 刊名：World Wide Web
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：20
• 期：2
• 页码：135-154
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Information Systems Applications (incl.Internet); Database Management; Operating Systems;
• 出版者：Springer US
• ISSN：1573-1413
• 卷排序：20

文摘

With the rapid development of the World Wide Web, electronic word-of-mouth interaction has made consumers active participants. Nowadays, a large number of reviews posted by the consumers on the Web provide valuable information to other consumers. Such information is highly essential for decision making and hence popular among the internet users. This information is very valuable not only for prospective consumers to make decisions but also for businesses in predicting the success and sustainability. In this paper, a Gini Index based feature selection method with Support Vector Machine (SVM) classifier is proposed for sentiment classification for large movie review data set. The results show that our Gini Index method has better classification performance in terms of reduced error rate and accuracy.