He is also associated with the National Research Center SFB 373 ``Quantification and Simulation of Economic Processes''. His research interests are in combinatorial optimization, information networks and software engineering. His current work focuses on the design of computational services in the Internet, investigating applications for combinatorial optimization, decision support and statistical data analysis Dr. Mueller has a Diploma in mathematics from the University of Bonn and a Ph.D. in applied mathematics from the Technical University of Berlin.