New Challenges in Data Integration: Large Scale Automatic Schema Matching Category of submission: Survey Paper Khalid Saleem, Zohra Bellahsene LIRMM - UMR 5506 CNRS University Montpellier 2, 161 Rue Ada, F-34392 Montpellier Tel. +33467418585 Fax. +33467418500 email:{saleem, bella}@lirmm.fr