@ARTICLE {20191,
author={M.  Daniel and R. Neves and N. Horta},
doi={10.1016/j.eswa.2016.11.022},
journal={Expert Systems with Applications},
title={Company Event Popularity for Financial Markets Using Twitter and Sentiment Analysis},
year={2017},
month={April},
volume={71},
number={0},
pages={111-124},
ISSN={0957-4174}
}