Professor at the University of Mons (UMONS).
Research interests: databases, consistent query answering, temporal databases, and data mining.
Member of TIMECENTER.
Member of the editorial board of Information Processing Letters.
Member of the editorial board of The VLDB Journal.
Program co-chair of TIME 2010 and SUM 2013.
Co-author (with Paraschos Koutris) of an article that was awarded the ACM SIGMOD Research Highlight Award 2015.
|Jef Wijsen: Certain conjunctive query answering in first-order logic. ACM Trans. Database Syst. 37(2): 9 (2012) [pdf]|
|Wenfei Fan, Floris Geerts, Jef Wijsen: Determining the Currency of Data. ACM Trans. Database Syst. 37(4): 25 (2012) [pdf]|
|Dany Maslowski, Jef Wijsen: A Dichotomy in the Complexity of Counting Database Repairs. Journal of Computer and System Sciences (2013) [pdf]|
|Floris Geerts, Fabian Pijcke, Jef Wijsen: First-Order Under-Approximations of Consistent Query Answers (2016) [pdf]|