Feature-based opinion mining and summarization (Hu and Liu, KDD-04)
Again focus on reviews (easier to work in a concrete domain!)
Objective: find what reviewers (opinion holders) liked and disliked
Product features and opinions on the features
Since the number of reviews on an object can be large, an opinion summary should be produced.
Desirable to be a structured summary.
Easy to visualize and to compare.
Analogous to but different from multi-document summarization.