Now showing items 1-6 of 6

    • B-chromatic number: Beyond NP-hardness 

      Panolan, Fahad; Philip, Geevarghese; Saurabh, Saket (Dagstuhl Publishing, 2015)
      The b-chromatic number of a graph G, chi_b(G), is the largest integer k such that G has a k-vertex coloring with the property that each color class has a vertex which is adjacent to at least one vertex in each of the other ...
      Conference object
    • Fast biclustering by dual parameterization 

      Drange, Pål Grønås; Reidl, Felix; Villaamil, Fernando Sánchez; Sikdar, Somnath (Dagstuhl Publishing, 2015)
      We study two clustering problems, Starforest Editing, the problem of adding and deleting edges to obtain a disjoint union of stars, and the generalization Bicluster Editing. We show that, in addition to being NP-hard, none ...
      Conference object
    • Kernelization of Vertex Cover by Structural Parameters 

      Strømme, Torstein Jarl Fagerbakke (The University of Bergen, 2015-08-03)
      In the NP-complete problem Vertex Cover, one is given a graph G and an integer k and are asked whether there exists a vertex set S ⊆ V (G) with size at most k such that every edge of the graph is incident to a vertex in ...
      Master thesis
    • Parameterized complexity of secluded connectivity problems 

      Fomin, Fedor; Golovach, Petr; Karpov, Nikolay; Kulikov, Alexander S (Dagstuhl Publishing, 2015)
      The Secluded Path problem introduced by Chechik et al. in [ESA 2013] models a situation where a sensitive information has to be transmitted between a pair of nodes along a path in a network. The measure of the quality of ...
      Conference object
    • Subexponential Algorithms for Partial Cover Problems 

      Fomin, Fedor; Lokshtanov, Daniel; Raman, Venkatesh; Saurabh, Saket (Dagstuhl Publishing, 2009)
      Partial Cover problems are optimization versions of fundamental and well studied problems like {\sc Vertex Cover} and {\sc Dominating Set}. Here one is interested in covering (or dominating) the maximum number of edges (or ...
      Conference object
    • Tight bounds for parameterized complexity of Cluster Editing 

      Fomin, Fedor; Kratsch, Stefan; Pilipczuk, Marcin; Pilipczuk, Michal Pawel; Villanger, Yngve (Dagstuhl Publishing, 2013)
      In the Correlation Clustering problem, also known as Cluster Editing, we are given an undirected graph G and a positive integer k; the task is to decide whether G can be transformed into a cluster graph, i.e., a disjoint ...
      Conference object