Session Random matrices, CFR-11, Bucharest 2012 (with C. Donati-Martin)
Seminar Probability, Cergy 2010-11 (with E. Löcherbach)
Conference Quantum groups, Clermont 2010 (with J. Bichon, B. Collins, C. Kassel)
Conference Polynomial integrals and applications, Cergy 2010
Conference Quantum groups, Toulouse 2009 (with J. Bichon, B. Collins, C. Kassel)
Conference Quantum groups, Strasbourg 2008 (with J. Bichon, B. Collins, C. Kassel)
Seminar Random matrices, Toulouse 2007-08 (with M. Capitaine)
Seminar Geometry and physics, Toulouse 2006-07 (with J.-M. Schlenker)
Website Laboratoire Emile Picard, Toulouse 2004-07
Director Noncommutative geometry team, Toulouse 2004-07
Seminar Noncommutative geometry, Toulouse 2004-06 (with A. Legrand)
Conference Groups, Paris 2003 (with P. Barrat, J.-Y. Charbonnel, R. Rentschler)
Website Operator algebra team, Paris 1998-04
Website Noncommutative geometry team, Marseille 1996-98
Website Operator algebras in France, Paris 1995-96
Student seminar Operator algebras, Paris 1994-96