Applying User Profile to Explore the Importance of Adjectives’ Position in Review Classification

• Main Authors: Chien-Yao Wang, 王建堯
• Other Authors: Shih-Chieh Chou
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/22959259881710539552

碩士 === 國立中央大學 === 資訊管理研究所 === 97 === With the rapid developing of Web 2.0, more and more blogs and forums appear, and more and more people post reviews on the Web. The online review is becoming a useful and important information resource for people. However, the number of reviews can be in hundreds. These reviews must be processed so that user may read them easily, e.g. classifying them automatically into two polarities (positive and negative), or doing opinion mining. Adjective is an important factor in review classification and opinion mining. The adjectives in a review can usually show the orientation of the review, either positive or negative. Therefore, the semantic orientation of adjectives and the term frequency of adjectives are the basis of review classification in such researches. In order to increase the performance of the review classification, this research has aimed to expand the useful attribute of adjectives. Some researches of Information Retrieval show that the words in different paragraphs have different meaning to the document, so this research considers whether the adjectives in different paragraphs have different meaning to the review. To examine this adjective characteristic, this research has applied user profiles to under manage the position of the adjective to uncover its influence on the accuracy of review classification. The experimental results show that the position of adjectives in reviews is an effective factor on review classification.