Uma investigação no apoio da avaliação da usabilidade em Sistemas Sociais usando Processamento da Linguagem Natural (An Investigation on the Support of the Usability Evaluation in Social Systems Using Natural Language Processing) [in Portuguese] Marília S Mendes author Elizabeth Furtado author Miguel Franklin author 2013 text Proceedings of the 9th Brazilian Symposium in Information and Human Language Technology conference publication mendes-etal-2013-uma https://aclanthology.org/W13-4830/ 2013