Theory Seminar: A fast Distributed 2+epsilon Approximation for Weighted Vertex Cover

Gregory Schwartzman (CS, Technion)
Wednesday, 23.3.2016, 12:30
Taub 201

The field of distributed graph algorithms deals with solving graph problems in a network (graph) of independent agents while minimizing the amount of communication between nodes. One such fundamental problem is weighted vertex cover. We show a fast distributed (2+epsilon)-approximation algorithm using the local ratio method. Due to a known lower bound, the number of communication rounds our algorithm achieves is tight for all constant values of epsilon.

This is a joint work with Keren Censor-Hillel and Reuven Bar-Yehuda.

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