A New ANEW: Evaluation of a Word List for Sentiment Analysis in Microblogs

By Finn Årup Nielsen. #MSM, 2011

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Sentiment analysis of microblogs such as Twitter has recently gained a fair amount of attention. One of the simplest sentiment analysis approaches compares the words of a posting against a labeled word list, where each word has been scored for valence, — a “sentiment lexicon” or “affective word lists”. There exist several affective word lists, e.g., ANEW (Affective Norms for English Words) developed before the advent of microblogging and sentiment analysis. I wanted to examine how well ANEW and other word lists performs for the detection of sentiment strength in microblog posts in comparison with a new word list specifically constructed for microblogs. I used manually labeled postings from Twitter scored for sentiment. Using a simple word matching I show that the new word list may perform better than ANEW, though not as good as the more elaborate approach found in SentiStrength.

Subfields: Artificial Intelligence

View Paper: https://www.semanticscholar.org/paper/d38763b4b0bbf1ed91b55107c658fcc96f8ef82d

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