The 28th International Conference DEXA (DEXA 2017) will be held in Lyon from August 28 - 31, 2017. Two french cities have organized DEXA in the past: Toulouse (1997, 2011),  and Aix-En-Provence (2002). More information on DEXA conferences are available at  http://dblp.uni-trier.de/db/conf/dexa/