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Enumerating Connected Induced Subgraphs: Improved Delay and Experimental Comparison

  • Christian Komusiewicz
  • Frank Sommer
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11376)

Abstract

We consider the problem of enumerating all connected induced subgraphs of order k in an undirected graph \(G=(V,E)\). Our main results are two enumeration algorithms with a delay of \(\mathcal {O}(k^2\varDelta )\) where \(\varDelta \) is the maximum degree in the input graph. This improves upon a previous delay bound [Elbassioni, JGAA 2015] for this problem. In addition, we give improved worst-case running time bounds and delay bounds for several known algorithms and perform an experimental comparison of these algorithms for \(k\le 10\) and \(k\ge |V|-3\).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Fachbereich Mathematik und InformatikPhilipps-Universität MarburgMarburgGermany

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