Sciweavers

23 search results - page 4 / 5
» Parameterized Complexity of Vertex Cover Variants
Sort
View
ISAAC
2010
Springer
226views Algorithms» more  ISAAC 2010»
13 years 8 months ago
On Tractable Cases of Target Set Selection
We study the NP-complete TARGET SET SELECTION (TSS) problem occurring in social network analysis. Complementing results on its approximability and extending results for its restric...
André Nichterlein, Rolf Niedermeier, Johann...
TAMC
2007
Springer
14 years 4 months ago
Kernelizations for Parameterized Counting Problems
Abstract. Kernelizations are an important tool in designing fixed parameter algorithms for parameterized decision problems. We introduce an analogous notion for counting problems,...
Marc Thurley
STOC
2010
ACM
224views Algorithms» more  STOC 2010»
14 years 2 months ago
Satisfiability Allows No Nontrivial Sparsification Unless The Polynomial-Time Hierarchy Collapses
Consider the following two-player communication process to decide a language L: The first player holds the entire input x but is polynomially bounded; the second player is computa...
Holger Dell and Dieter van Melkebeek
ESA
2003
Springer
189views Algorithms» more  ESA 2003»
14 years 3 months ago
On the Complexity of Approximating TSP with Neighborhoods and Related Problems
We prove that various geometric covering problems, related to the Travelling Salesman Problem cannot be efficiently approximated to within any constant factor unless P = NP. This ...
Shmuel Safra, Oded Schwartz
SODA
2010
ACM
261views Algorithms» more  SODA 2010»
14 years 7 months ago
Bidimensionality and Kernels
Bidimensionality theory appears to be a powerful framework in the development of meta-algorithmic techniques. It was introduced by Demaine et al. [J. ACM 2005 ] as a tool to obtai...
Fedor V. Fomin, Daniel Lokshtanov, Saket Saurabh, ...