Self-training from labeled features for sentiment analysis

Abstract

Sentiment analysis concerns about automatically identifying sentiment or opinion expressed in a given piece of text. Most prior work either use prior lexical knowledge defined as sentiment polarity of words or view the task as a text classification problem and rely on labeled corpora to train a sentiment classifier. While lexicon-based approaches do not adapt well to different domains, corpus-based approaches require expensive manual annotation effort. In this paper, we propose a novel framework where an initial classifier is learned by incorporating prior information extracted from an existing sentiment lexicon with preferences on expectations of sentiment labels of those lexicon words being expressed using generalized expectation criteria. Documents classified with high confidence are then used as pseudo-labeled examples for automatical domain-specific feature acquisition. The word-class distributions of such self-learned features are estimated from the pseudo-labeled examples and are used to train another classifier by constraining the model's predictions on unlabeled instances. Experiments on both the movie-review data and the multi-domain sentiment dataset show that our approach attains comparable or better performance than existing weakly-supervised sentiment classification methods despite using no labeled documents.

Publication DOI: https://doi.org/10.1016/j.ipm.2010.11.003
Divisions: College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
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Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Information processing and management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in He, Y & Zhou, D, 'Self-training from labeled features for sentiment analysis' Information processing and management, vol 47, no. 4 (2011) DOI http://dx.doi.org/10.1016/j.ipm.2010.11.003.
Uncontrolled Keywords: sentiment analysis,opinion mining,self-training,generalized expectation,self-learned features
Publication ISSN: 0306-4573
Last Modified: 29 Oct 2024 12:49
Date Deposited: 24 Jan 2013 13:18
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2011-07
Authors: He, Yulan (ORCID Profile 0000-0003-3948-5845)
Zhou, Deyu

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Version: Accepted Version


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