tailieunhanh - Báo cáo khoa học: "Mine the Easy, Classify the Hard: A Semi-Supervised Approach to Automatic Sentiment Classification"

Supervised polarity classification systems are typically domain-specific. Building these systems involves the expensive process of annotating a large amount of data for each domain. A potential solution to this corpus annotation bottleneck is to build unsupervised polarity classification systems. However, unsupervised learning of polarity is difficult, owing in part to the prevalence of sentimentally ambiguous reviews, where reviewers discuss both the positive and negative aspects of a product. .