Rafael Bomfim Vasco Furtado Using Markov Models to Learn the Sentiment of Soccer Fans from Bets and the Result of Matches. 276-281 2015 BRACIS https://doi.org/10.1109/BRACIS.2015.60 https://doi.ieeecomputersociety.org/10.1109/BRACIS.2015.60 conf/bracis/2015 db/conf/bracis/bracis2015.html#BomfimF15