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arXiv · 1301.4010

Approximating Bin Packing within O(log OPT * log log OPT) bins

Thomas Rothvoss
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Abstract

For bin packing, the input consists of n items with sizes s_1,...,s_n in [0,1] which have to be assigned to a minimum number of bins of size 1. The seminal Karmarkar-Karp algorithm from '82 produces a solution with at most OPT + O(log^2 OPT) bins. We provide the first improvement in now 3 decades and show that one can find a solution of cost OPT + O(log OPT * log log OPT) in polynomial time. This is achieved by rounding a fractional solution to the Gilmore-Gomory LP relaxation using the Entropy Method from discrepancy theory. The result is constructive via algorithms of Bansal and Lovett-Meka.

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Thomas Rothvoss. 2014-03-10. Approximating Bin Packing within O(log OPT * log log OPT) bins. https://arxiv.org/abs/1301.4010

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