Cristiano Maciel Vinícius Carvalho Pereira Licinio Roque Ana Cristina Bicharra Garcia Identifying discourse mistakes in web debates: moderation in the DCC. 690-691 2009 SAC http://doi.acm.org/10.1145/1529282.1529425 conf/sac/2009 db/conf/sac/sac2009.html#MacielPRG09