This paper describes the Unitor system that participated to the SENTIment POLarity Classification task proposed in Evalita 2016. The system implements a classification workflow made of several Convolutional Neural Network classifiers, that generalize the linguistic information observed in the training tweets by considering also their context. Moreover, sentiment specific information is injected in the training process by using Polarity Lexicons automatically acquired through the automatic analysis of unlabeled collection of tweets. Unitor achieved the best results in the Subjectivity Classification sub-task, and it scored 2nd in the Polarity Classification sub-task, among about 25 different submissions.

Castellucci, G., Croce, D., Basili, R. (2016). Context-aware convolutional neural networks for twitter sentiment analysis in Italian. In CEUR Workshop Proceedings. CEUR-WS.

Context-aware convolutional neural networks for twitter sentiment analysis in Italian

CASTELLUCCI, GIUSEPPE;CROCE, DANILO;BASILI, ROBERTO
2016-01-01

Abstract

This paper describes the Unitor system that participated to the SENTIment POLarity Classification task proposed in Evalita 2016. The system implements a classification workflow made of several Convolutional Neural Network classifiers, that generalize the linguistic information observed in the training tweets by considering also their context. Moreover, sentiment specific information is injected in the training process by using Polarity Lexicons automatically acquired through the automatic analysis of unlabeled collection of tweets. Unitor achieved the best results in the Subjectivity Classification sub-task, and it scored 2nd in the Polarity Classification sub-task, among about 25 different submissions.
3rd Italian Conference on Computational Linguistics, CLiC-it 2016 and 5th Evaluation Campaign of Natural Language Processing and Speech Tools for Italian, EVALITA 2016
ita
2016
Rilevanza nazionale
contributo
Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni
Settore INF/01 - Informatica
English
Computer Science (all)
http://ceur-ws.org/
Intervento a convegno
Castellucci, G., Croce, D., Basili, R. (2016). Context-aware convolutional neural networks for twitter sentiment analysis in Italian. In CEUR Workshop Proceedings. CEUR-WS.
Castellucci, G; Croce, D; Basili, R
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/189342
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