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2013
Conference Paper
Titel
Approximating independent set in perturbed graphs
Abstract
For the maximum independent set problem, strong inapproximability bounds for worst-case efficient algorithms exist. We give a deterministic algorithm beating these bounds, with polynomial expected running-time for semi-random graphs: an adversary chooses a graph with n vertices, and then edges are flipped with a probability of epsilon. Our algorithm guarantees an approximation ratio of Omikron(root of n epsilon) for sufficiently large epsilon .