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On the Automatic Learning of Sentiment Lexicons

Published 1 January 2015Open access
Aliaksei Severyn, Alessandro Moschitti
Citations35
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TL;DR

This paper induces the sentiment association scores for the lexicon items from a model trained on a weakly supervised corpora and shows that features extracted from such a machine-learned lexicon outperform models using manual or other automatically constructed sentiment lexicons.

Abstract

This paper describes a simple and princi-pled approach to automatically construct sen-timent lexicons using distant supervision. We induce the sentiment association scores for the lexicon items from a model trained on a weakly supervised corpora. Our empiri-cal findings show that features extracted from such a machine-learned lexicon outperform models using manual or other automatically constructed sentiment lexicons. Finally, our system achieves the state-of-the-art in Twitter Sentiment Analysis tasks from Semeval-2013 and ranks 2nd best in Semeval-2014 according to the average rank.

Keywords

Computer Science