POPSTAR at RepLab 2013: Polarity for Reputation Classification. - João Filgueiras; Silvio Amir (CLEF (Working Notes), 2013)

REACTION: A naive machine learning approach for sentiment classification. - Silvio Moreira; João Filgueiras; Bruno Martins 001; Francisco M. Couto; Mário J. Silva (SemEval@NAACL-HLT, 2013)

TUGAS: Exploiting unlabelled data for Twitter sentiment analysis. - Silvio Amir; Miguel B. Almeida; Bruno Martins 001; João Filgueiras; Mário J. Silva (SemEval@COLING, 2014)

Automatic Identification of Economic Activities in Complaints. - Luís Barbosa; João Filgueiras; Gil Rocha; Henrique Lopes Cardoso; Luís Paulo Reis; João Pedro Machado; Ana Cristina Caldeira; Ana Maria Oliveira (SLSP, 2019)