CSL: A Combined Spanish lexicon: Resource for polarity classification and sentiment analysis

Luis G. Moreno-Sandoval, Paola Beltrán-Herrera, Jaime A. Vargas-Cruz, Carolina Sánchez-Barriga, Alexandra Pomares-Quimbaya, Jorge A. Alvarado-Valencia, Juan C. García-Díaz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

Opinion mining and sentiment analysis in texts from social networks such as Twitter has taken great importance during the last decade. Quality lexicons for the sentiment analysis task are easily found in languages such as English; however, this is not the case in Spanish. For this reason, we propose CSL, a Combined Spanish Lexicon approach for sentiment analysis that uses an ensemble of six lexicons in Spanish and a weighted bag of words strategy. In order to build CSL we used 68,019 tweets previously classified by researchers at the Spanish Society of Natural Language Processing (SEPLN) obtaining a precision of 62.05 and a recall of 60.75 in the validation set, showing improvements in both measurements. Additionally, we compare the results of CSL with a very well-known commercial software for sentiment analysis in Spanish finding an improvement of 10 points in precision and 15 points in recall.

Original languageEnglish
Title of host publicationICEIS 2017 - Proceedings of the 19th International Conference on Enterprise Information Systems
EditorsSlimane Hammoudi, Michal Smialek, Olivier Camp, Joaquim Filipe, Joaquim Filipe
PublisherSciTePress
Pages288-295
Number of pages8
ISBN (Electronic)9789897582479
DOIs
StatePublished - 2017
Event19th International Conference on Enterprise Information Systems, ICEIS 2017 - Porto, Portugal
Duration: 26 Apr 201729 Apr 2017

Publication series

NameICEIS 2017 - Proceedings of the 19th International Conference on Enterprise Information Systems
Volume1

Conference

Conference19th International Conference on Enterprise Information Systems, ICEIS 2017
Country/TerritoryPortugal
CityPorto
Period26/04/1729/04/17

Keywords

  • Opinion mining
  • Polarity's classification
  • Sentiment analysis
  • Spanish Lexicon
  • Spanish resources for sentiment analysis

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