Marek J. Druzdzel

Marek Druzdzel is a Polish-American computer scientist known for his contributions to decision support systems, Bayesian networks, and probabilistic reasoning.

Education Druzdzel obtained two Master of Science degrees from Delft University of Technology in the Netherlands: the first in Technical Mathematics and Informatics in 1985, and the second in Computer Engineering in 1987. He received his Ph.D. in Engineering and Public Policy from Carnegie Mellon University in 1992. In 2009, he was awarded a habilitation (D.Sc.) by the Institute of Computer Science of the Polish Academy of Sciences. Earlier, while completing his Ph.D. at Carnegie Mellon University, Druzdzel worked with Herbert A. Simon, a Nobel Prize-winning economist and cognitive psychologist, and they co-authored a paper on decision theory and causality.

He became a visiting professor at Białystok University of Technology in 2006 and was appointed full professor there in 2009. In 2015, he co-founded BayesFusion, LLC, where he continues to contribute to the development of decision support tools, including the GeNIe and SMILE software platforms used for Bayesian network modeling.

Research Druzdzel’s research focuses on decision-making under uncertainty, probabilistic graphical models, and the development of intelligent decision support systems. He is particularly known for his work on Bayesian networks, including both theoretical contributions and practical applications in areas such as medicine, engineering, and public policy. He has co-developed the GeNIe and SMILE platforms, which are widely used tools for modeling and analyzing probabilistic systems.

He has explored qualitative reasoning techniques that allow systems to function effectively in the absence of precise numerical probabilities. He has also addressed the challenge of model elicitation, investigating how to derive accurate probabilistic parameters from expert knowledge and data.

Selected publications

Honors and awards Druzdzel has been the recipient of two Fulbright U.S. Scholar grants. During the 2009–2010 and 2016–2017 academic years, he lectured at Białystok University of Technology as part of the Fulbright program, focusing on the application of probabilistic models in decision support systems.