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Predicting rating polarity through automatic classification of review texts

机译:通过对评论文本进行自动分类来预测评分极性

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Online reviews and ratings are important for potential customers when deciding whether to purchase a product or service. However, reading and synthesizing the massive amount of review data, which is often unstructured, is a huge challenge. In this study, we investigate the use of machine learning models to predict rating polarity (positive, neutral or negative) through automatic classification of review texts. We apply various single and ensemble classifiers to identify rating polarity of reviews from the 2017 Yelp dataset. Experimental results show that the linear kernel Support Vector Machine, Logistic Regression and Multilayer Perceptron are among the three best single classifiers in terms of accuracy, precision, recall and F-measure. Their performances can be further improved when used as base classifiers for ensemble models.
机译:在决定是否购买产品或服务时,在线评论和评级对潜在客户而言很重要。但是,读取和合成大量的评论数据(通常是非结构化的)是一个巨大的挑战。在这项研究中,我们调查了使用机器学习模型通过自动对评论文本进行分类来预测评分极性(正面,中性或负面)的方法。我们应用各种单一和整体分类器从2017 Yelp数据集中识别评论的评分极性。实验结果表明,线性核支持向量机,Logistic回归和多层感知器在准确性,准确性,查全率和F度量方面是三个最佳的单一分类器。当用作集成模型的基础分类器时,它们的性能可以进一步提高。

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