@inproceedings{inproceedingse4c33d2a,
title   = {NILC_USP: an improved hybrid system for sentiment analysis in Twitter messages},
author = {Balage Filho, Pedro P and Avanço, Lucas and Pardo, Thiago Alexandre Salgueiro and Nunes, Maria das Graças Volpe},
year = {2014},
publisher = {ACL},
booktitle   = {International Workshop on Semantic Evaluation - SemEval}
}