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Clarisse de Souza

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Clarisse Sieckenius de Souza is a full professor in the Informatics Department at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio). She researches human–computer interaction (HCI) and developed the theory of Semiotic Engineering. She founded SERG, the Semiotic Engineering Research Group, at PUC-Rio.

Education and career: She earned a bachelor’s degree in languages (translation-interpretation) in 1979, a master’s in Portuguese language in 1982, and a PhD in applied linguistics in 1988, all from PUC-Rio. She joined the informatics department and became a professor in 2006. She did postdoctoral and visiting research at Stanford University and the University of Waterloo, starting in 1991, and began her semiotic engineering research then; SERG was created in 1996.

Awards and recognition: She was co-winner of the ACM SIGDOC Rigo Award in 2010, inducted into the ACM SIGCHI CHI Academy in 2013, and a co-winner of the IFIP TC13 Pioneer in HCI Award in 2014. In 2016 she received the Brazilian Computer Society Scientific Merit Award. She is listed as a Notable Woman in Computing by CRA-W / Anita Borg Institute. She has three international books on semiotic engineering.


This page was last edited on 3 February 2026, at 07:18 (CET).