Hatzivassiloglou and McKeown for Identifying Word Polarity
- intuition:
- adjectives conjoined by “and” have same polarity (e.g. fair and legitimate, corrupt and brutal)
- adjectives conjoined by “but” have different polarity (e.g. fair but brutal)
- processes:
- start with seed set (i.e. a labelled set of sentiment words)
- expand seed set to conjoined adjectives, which results in a graph
- use clustering algorithm to divide the graph