A Comparative Study for Sentiment Analysis on Election Brazilian News Caio Magno Aguiar Carvalho author Hitoshi Nagano author Allan Kardec Barros author 2017-10 text Proceedings of the 11th Brazilian Symposium in Information and Human Language Technology Gustavo Henrique Paetzold editor Vládia Pinheiro editor Sociedade Brasileira de Computação Uberlândia, Brazil conference publication carvalho-etal-2017-comparative https://aclanthology.org/W17-6613/ 2017-10 103 111