David P. Williamson is the Chair of the Department of Information Science at Cornell University, and a Professor in the School of Operations Research and Information Engineering.
He received his Ph.D. in Computer Science from MIT under Professor Michel X. Goemans in 1993. After a postdoc at Cornell under Professor Éva Tardos, he was a Research Staff Member for IBM Research at the T.J. Watson Research Center in Yorktown Heights, New York. From 2000 to 2003, he was the Senior Manager of the Computer Science Principles and Methodologies group at IBM’s Almaden Research Center in San Jose, California. He moved to Cornell University in 2004.
His research focuses on finding efficient algorithms for hard discrete optimization problems, with a focus on approximation algorithms for problems in network design, facility location, and scheduling. Other interests include algorithms for information networks.
PhD in Computer Science, 1993
SM in Computer Science, 1990
SB in Mathematics, 1989
A 4/3-Approximation Algorithm for Half-Integral Cycle Cut Instances of the TSP
To appear in IPCO 2023
Fluid Approximations for Revenue Management under High-Variance Demand: Good and Bad Formulations
To appear in Management Science.
Revisiting Garg's 2-Approximation Algorithm for the k-MST Problem in Graphs
In the Proceedings of the 2023 Symposium on Simplicity in Algorithms (SOSA), pages 56–68, 2023.
A Combinatorial Cut-Toggling Algorithm for Solving Laplacian Systems
In the Proceedings of the 15th Innovations in Theoretical Computer Science Conference (ITCS 2023), 69:1–69:22, 2023.
Erratum to 'Budgeted Prize-Collecting Traveling Salesman and Minimum Spanning Tree Problems'
To appear in Mathematics of Operations Research