ListarGI-LYS - Congresos, conferencias, etc. por tema "Sentiment analysis"

Mostrando ítems 1-7 de 7

    • Lyapunov filtering of objectivity for Spanish sentiment model 

      Chaturvedi, Iti; Cambria, Erik; Vilares, David (IEEE, 2016-07)
      [Abstract] Objective sentences lack sentiments and, hence, can reduce the accuracy of a sentiment classifier. Traditional methods prior to 2001 used hand-crafted templates to identify subjectivity and did not generalize ...

    • LyS at TASS 2015: Deep Learning Experiments for Sentiment Analysis on Spanish Tweets 

      Vilares, David; Doval, Yerai; Alonso, Miguel A.; Gómez-Rodríguez, Carlos (CEUR-WS Workshop Proceedings, 2015)
      [Abstract]: This paper describes the participation of the LyS group at tass 2015. In this year’s edition, we used a long short-term memory neural network to address the two proposed challenges: (1) sentiment analysis at ...

    • LyS: Porting a Twitter Sentiment Analysis Approach from Spanish to English 

      Vilares, David; Hermo, Miguel; Alonso, Miguel A.; Gómez-Rodríguez, Carlos; Doval, Yerai (Association for Computational Linguistics, 2014)
      [Abstract]: This paper proposes an approach to solve message- and phrase-level polarity classification in Twitter, derived from an existing system designed for Spanish. As a first step, an ad-hoc preprocessing is performed. ...

    • On the Logistical Difficulties and Findings of Jopara Sentiment Analysis 

      Agüero-Torales, Marvin M.; Vilares, David; López-Herrera, Antonio G. (Association for Computational Linguistics, 2021-06)
      [Abstract] This paper addresses the problem of sentiment analysis for Jopara, a code-switching language between Guarani and Spanish. We first collect a corpus of Guarani-dominant tweets and discuss on the difficulties of ...

    • On the Processing and Analysis of Microtexts: From Normalization to Semantics 

      Doval, Yerai; Vilares, David (M D P I AG, 2018-09-18)
      [Abstract] User-generated content published on microblogging social platforms constitutes an invaluable source of information for diverse purposes: health surveillance, business intelligence, political analysis, etc. We ...

    • Sentiment Analysis on Monolingual, Multilingual and Code-Switching Twitter Corpora 

      Vilares, David; Alonso, Miguel A.; Gómez-Rodríguez, Carlos (Association for Computational Linguistics, 2015)
      [Abstract]: We address the problem of performing po- larity classification on Twitter over differ- ent languages, focusing on English and Spanish, comparing three techniques: (1) a monolingual model which knows ...

    • Tratamiento sintáctico de la negación en análisis del sentimiento monolingüe y multilingüe 

      Vilares, David; Alonso, Miguel A.; Gómez-Rodríguez, Carlos (2017-09-19)
      [Abstract] Dealing with negation in a proper way is a relevant factor in order to obtain high performance sentiment analysis systems. In this framework, we present a method for the treatment of negation in Spanish that ...