The Statistical Mechanics of Random Set Packing and a Generalization of the Karp-Sipser Algorithm. (10th March 2014)

• Record Type: Journal Article
• Authors: Lucibello, C.; Ricci-Tersenghi, F.
• Other Names: Park Hyunggyu Academic Editor.
• Is Part Of: International journal of statistical mechanics. Volume 2014(2014)
• Publication Date: 2014-03-10
• Subjects: Statistical mechanics -- Periodicals; Statistical mechanics; Periodicals; 530.13
• DOI: 10.1155/2014/136829
• Languages: English
• ISSNs: 2356-7112

Abstract

Abstract : We analyse the asymptotic behaviour of random instances of the maximum set packing (MSP) optimization problem, also known as maximum matching or maximum strong independent set on hypergraphs. We give an analytic prediction of the MSPs size using the 1RSB cavity method from statistical mechanics of disordered systems. We also propose a heuristic algorithm, a generalization of the celebrated Karp-Sipser one, which allows us to rigorously prove that the replica symmetric cavity method prediction is exact for certain problem ensembles and breaks down when a core survives the leaf removal process. Thee -phenomena threshold discovered by Karp and Sipser, marking the onset of core emergence and of replica symmetry breaking, is elegantly generalized toC s = e / (d - 1) for one of the ensembles considered, whered is the size of the sets.