Opinion Lexicon

The lexicon-based approach for opinion mining depends on opinion (or sentiment) words, which are words that express positive or negative sentiments. Words that encode a desirable state (e.g., "great" and "good") have a positive polarity, while words that encode an undesirable state have a negative polarity (e.g., "bad" and "awful"). Although opinion polarity normally applies to adjectives and adverbs, there are verb and noun opinion words as well.

The lexicon contains two classes (positive/negative) and 10 specific lists.

Postive classs:

(1)  Positive Noun

(2)  Positive Adjective

(3)  Positive Adverb

(4)  Positive Verb

(5)  Positive Phrase (unavailable)

Negative class:

You are free to use the opinion lexicion. The current one is still small, you can help edit and add more words.