Dr. Christian Lemmen obtained his Masters in Computer Science from the University of Paderborn. Thereafter, he joined Thomas Lengauer's Lab at the GMD in Sankt Augustin. He received his Ph.D. from the University of Bonn for his work on the FlexS system for computational superposition of small molecules which is commercially distributed worldwide. Beginning 1999, Dr. Lemmen worked as Senior Research Scientist in industry at the DuPont Pharmaceuticals Research Laboratories in San Francisco, which was formerly the biotech company CombiChem Inc. Dr. Lemmen's research interests cover the computational modelling of drug design problems, optimisation strategies and machine learning methods. He is a scientific advisor to CHI's structure-based drug design conference.