Semantic orientation for polarity classification in Spanish reviews

•We present a lexicon of opinion words for sentiment analysis in Spanish.•We describe the process of the lexicon generation.•We assess the new resource following a lexicon based method for polarity classification in a corpus movie reviews in Spanish. Until now most of the published methods for polar...

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Bibliographic Details
Published in:Expert systems with applications 2013-12, Vol.40 (18), p.7250-7257
Main Authors: Molina-González, M. Dolores, Martínez-Cámara, Eugenio, Martín-Valdivia, María-Teresa, Perea-Ortega, José M.
Format: Article
Language:English
Subjects:
Affectivity. Emotion
Applied sciences
Biological and medical sciences
Classification
Communities
Computer science
control theory
systems
Data mining
Data processing. List processing. Character string processing
Exact sciences and technology
Expert systems
Fundamental and applied biological sciences. Psychology
Memory organisation. Data processing
Multilingual opinion mining
Orientation
Personality. Affectivity
Polarity
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Semantics
Sentiment polarity detection
Software
Spanish resources for sentiment analysis
Texts
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Summary:•We present a lexicon of opinion words for sentiment analysis in Spanish.•We describe the process of the lexicon generation.•We assess the new resource following a lexicon based method for polarity classification in a corpus movie reviews in Spanish. Until now most of the published methods for polarity classification have been applied to English texts, but other languages are becoming increasingly important. This paper presents a new resource for the Spanish sentiment analysis research community. We have generated a new lexicon by translating into Spanish the Bin Liu English Lexicon. In order to assess the validity of the proposed lexicon a set of experiments on a Spanish review corpus are presented. In addition, the resource presented is compared with another existing Spanish lexicon. The results show that our resource outperforms the currently available Spanish lexicon for sentiment analysis.
ISSN:0957-4174
1873-6793
DOI:10.1016/j.eswa.2013.06.076