Extending general sentiment lexicon to specific domains in (semi-)automatic manner
This paper describes an approach to the construction of a sentiment analysis system that uses both
automatic and manual processes. The system includes a domain-specific sentiment lexicon, modifier
patterns and rules that are used to derive the sentiment values of sentences in new texts. The lexicon that
includes single words (unigrams) is obtained in an automatic manner from the distribution of ratings for
all words in the labelled training data. The sentiment values of phrases is derived fro...
