PC chair of (COSI 2015), Colloque sur l'Optimisation et les Systèmes d'Information, 1-3 Juin 2015, Oran, Algérie
PC chair of (BDA 2013), the 29th french database conference
Joint international project 2013-2014 with Kyushu Univ. (Japan) funded by CNRS-JSPS on Data Management Issues for Mobile Robots
Co-chair with Philippe Lenca (Telecom Bretagne, France) of the Fifteenth International Conference on Discovery Science (DS 2012), Lyon, France
Presentation at ECAI 2012 of “Extending set-based dualization: Application to Pattern Mining” (slides,paper), joint work with Lhouari Nourine, August 2012, Montpellier, France
Co-chair with Raoul Medina (Clermont-Ferrand, France) and Hiroki Arimura (Hokkaido University, Japan) of the first international workshop on Declarative pattern mining (WDPM'11), co-located with ICDM 2011, Vancouver, Canada
Co-chair with Marco Carbone (IT University of Copenhagen, Denmark) of the 8th International Workshop on Web Services and Formal Methods (WS-FM'11), co-located with BPM 2011, Clermont-Ferrand, France
Workshop co-chair with Einoshin Suzuki (Kyushu University, Japan) and Jomi F. Hübner (Federal University of Santa Catarina, Brasil) of workshops co-located with WI/IAT 2011, Lyon, France
C++ code for discovering conditional functional dependencies (CFD) available here (joint work with Noël Novelli and Thierno Diallo)