A Joint Model of Text and Aspect Ratings for Sentiment Summarization - Ivan Titov and Ryan McDonald Characteristics Summary Domain Hotel reviews Sentiment Classes 5-star rating Aspect Detection Method Multi-Aspect Sentiment Model (incorporates MG-LDA model) Performance Summary Aspect Detection Aspect service Average Precision: 75.8% Aspect location Average Precision: 85.5% Aspect rooms (with best # of […]

An Iterative Reinforcement Approach for Fine-Grained Opinion Mining - Weifu Du & Songbo Tan Characteristics Summary Domain Chinese Hotel reviews from www.ctrip.com Sentiment Classes unknown Method Improved Information Bottleneck Algorithm for Semantic Information Performance Summary Accuracy of review aspect category construction: Rand-index: 0.71 Sentiment association: Precision: 78.90% Introduction Approaching the problem of aspect-level sentiment analysis […]