29-31 octobre 2014. Franck Varenne. Organizer and chair of the “Epistemology” session at the Agreenskills Research School on “Predictive modeling: from data to models” – Météopole – Toulouse 2014 October 29-31. Co-speakers: René Doursat (CNRS), Nadine Peyriéras (CNRS), Antoine Spicher (UPEC). Personal conference: “The diversity of model functions and data/models relationships in history and today”