In february 2007, the Global Optimization Laboratory (LOG) ceased to exist as a common structure between the CENA (Centre d'Etudes de la Navigation Aérienne) and the french civil aviation school ENAC (Ecole Nationale de l'Aviation Civile), following the reorganization of the french civil aviation services.
You may consult the web page of the POM team (DTI/R&D) that was created by former members of the LOG belonging to the former CENA.
ENAC members of the ex-LOG are now affiliated to the LOTA