基于網(wǎng)絡(luò)評論挖掘的商品綜合評分模型研究
[Abstract]:As the Internet has become an important channel for Chinese Internet users to shop, online reviews are also flooded with every shopping platform, and the information provided by online product reviews also affects consumers' shopping behavior. Because there is a huge amount of data in web product reviews, and there are a lot of meaningless, even malicious spam comments, it is a waste of time for users to browse such a large number of comments. And the information obtained is not necessarily true and reliable. By analyzing the current situation of major shopping websites, we find that at present websites generally use a five-point rating system to visually show consumers' scoring of products. This independent rating and comment content leads users to see not only the rating but also the content of the comment to determine the exact information expressed by the comment. In view of the complex status of the above series, this paper based on the network comment mining, and combined with the garbage comment recognition research how to build a product comprehensive scoring model. The final result of this study is to construct a comprehensive commodity scoring model, in which the main process is the emotional analysis of the content of comment. In the emotional analysis of comment content, the word segmentation system is used to preprocess the comment, and the Apriori algorithm and pruning method are used to extract the feature words. Then the number of polar words is expanded with HowNet and "synonym forest", and the polar words are annotated with reference to "Chinese emotional Vocabulary Noumenon" to improve the content of polarity word dictionary. Finally, we use the method of membership degree to extract the Feature-Viewpoint word pair, and analyze the influence of degree adverb and negative word on the opinion word, and calculate the emotional value of the comment content to reflect the reviewer's emotion effectively. And on the basis of emotional analysis of comment content, this paper proposes a method of garbage comment recognition, which combines the behavior of commenters and the content of comments, and analyzes the characteristics of commenters' behaviors and comments' content. KNN classifier is used to classify comments effectively. The final model consists of four factors: the rating, the professional ability of the reviewer, the emotional value of the content of the comment, and whether the comment belongs to the spam. The model consists of two parts: the single comment scoring model and the commodity rating model. In the end, the experimental data are obtained from two mobile phones and one notebook provided by Datacom. In this paper, product feature word extraction, feature-viewpoint word pair extraction, comment content emotion analysis, garbage comment recognition and comprehensive scoring model are tested, and the results are analyzed. The experimental results show that, The method proposed in this paper is reasonable and effective.
【學(xué)位授予單位】:杭州電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:F713.36;F713.55
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