1. CWI, Netherlands
2. INRIA Saclay-Île-de-France, France
3. University of Amsterdan, Netherlands
4. Sun YatSen University, China
5. Microsoft Corporation, USA
6. AT&T Labs Research, USA
7. HP Labs, USA
8. KAUST, Saudi Arabia
9. ETIS, Univ. de CergyPontoise, France
10. Information Retrieval Facility, Vienna, Austria
11. University of California, Irvine, USA
12. University of Wisconsin, Madison
13. Télécom Paristech, France
14. University of Illinois at Urbana Champaign, USA
15. Courant Institute, New York, USA