A fast distributed (2+epsilon)-approximation for weighted vertex cover

גרגורי שוורצמן, הרצאה סמינריונית למגיסטר
יום רביעי, 2.11.2016, 14:30
טאוב 701
Prof. Keren Censor-Hillel

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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