since September 1999 Brown University, Computer Science Department Assistant Professor of Computer Science since April 2000 RecomMind Inc. Co-Founder, Chief Scientist 1998/99 International Computer Science Institute, Berkeley & EECS Department, University of California, Berkeley Postdoctoral Fellow 1997/98 MIT, Center for Biological and Computational Learning & Artificial Intelligence Laboratory Postdoctoral Fellow (with Prof. M. I. Jordan ) 1993 -1997 University of Bonn, computer vision and pattern recognition group Ph.D. student (with Prof. J. M. Buhmann ) 1990-1991 University Paris VI, Computer Science Ecole des Hautes Etudes en Sciences Sociales, Philosophy 1987-1990 1991-1993 University of Bonn, Computer Science and Philosophy Diploma (MS) degree in CS