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I am currently the head of the Interdisciplinary Center for New Technologies in Education (CINTED) at the Federal University of Rio Grande do Sul (UFRGS). I am Associate Professor and Researcher at the Applied Computer Science Department of the Institute of Informatics at the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. I work at the Post-Graduation Program in Computer Science (PPGC) and also at the Post-Graduation Program in Computers and Education (PGIE). I hold a Ph.D. in Computer Science (PPGC/UFRGS, Brazil, 2004), an MS.C. in Computer Science (PPGC/UFRGS, Brazil, 1999) and a BS.C. in Computer Science (UCPEL, Brazil, 1996).
My research activities are related to Data Science, Learning Analytics, Recommender Systems, Information Retrieval, Text, Web, and Data Mining. I have some studies regarding big data and social network analysis, more specifically, I'm interested in the development and application of social models to identify user's reputation and to recommend authorities.I also work with recommendation models applied to Web services discovery and composition. I'm interested in techniques to perform matchmaking, selection, and substitution of WS on dynamic compositions.
If you want to send an encrypted message to me, you can use my public key.