Tarjan obtained a Bachelor's degree in mathematics from the California Institute of Technology in 1969. At Stanford University , he received his master's degree in computer science in 1971 and a . in computer science (with a minor in mathematics) in 1972. At Stanford, he was supervised by Robert Floyd  and Donald Knuth ,  both highly prominent computer scientists, and his . dissertation was An Efficient Planarity Algorithm . Tarjan selected computer science as his area of interest because he believed that computer science was a way of doing mathematics that could have a practical impact. 
Andrzej Pronobis is a Research Associate in the Department of Computer Science and Engineering at the University of Washington in Seattle, as well as a Senior Researcher at KTH Royal Institute of Technology in Stockholm, Sweden. His research is at the intersection of robotics, deep learning and computer vision, with focus on perception and spatial understanding mechanisms for mobile robots and their role in the interaction between robots and human environments. His recent interests include application of tractable probabilistic deep models to planning and learning semantic spatial representations. He is a recipient of a prestigious Swedish Research Council Grant for Junior Researchers and a finalist for the Georges Giralt . award for the best European . thesis in robotics.