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» Parameterized Complexity and Approximation Algorithms
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FAW
2008
Springer
104views Algorithms» more  FAW 2008»
13 years 9 months ago
The Parameterized Complexity of the Rectangle Stabbing Problem and Its Variants
We study the parameterized complexity of an NP-complete geometric covering problem called d-dimensional Rectangle Stabbing where we are given a set of axis-parallel d-dimensional h...
Michael Dom, Somnath Sikdar
ISAAC
2007
Springer
183views Algorithms» more  ISAAC 2007»
14 years 1 months ago
The Complexity of Finding Subgraphs Whose Matching Number Equals the Vertex Cover Number
The class of graphs where the size of a minimum vertex cover equals that of a maximum matching is known as K¨onig-Egerv´ary graphs. K¨onig-Egerv´ary graphs have been studied ex...
Sounaka Mishra, Venkatesh Raman, Saket Saurabh, So...
CAV
2007
Springer
122views Hardware» more  CAV 2007»
13 years 11 months ago
Parameterized Verification of Infinite-State Processes with Global Conditions
We present a simple and effective approximated backward reachability algorithm for parameterized systems with existentially and universally quantified global conditions. The indivi...
Parosh Aziz Abdulla, Giorgio Delzanno, Ahmed Rezin...
SOFSEM
2010
Springer
14 years 4 months ago
On the Complexity of the Highway Pricing Problem
Abstract. The highway pricing problem asks for prices to be determined for segments of a single highway such as to maximize the revenue obtainable from a given set of customers wit...
Alexander Grigoriev, Joyce van Loon, Marc Uetz
ECCC
2007
90views more  ECCC 2007»
13 years 7 months ago
Parameterized Proof Complexity: a Complexity Gap for Parameterized Tree-like Resolution
We propose a proof-theoretic approach for gaining evidence that certain parameterized problems are not fixed-parameter tractable. We consider proofs that witness that a given pro...
Stefan S. Dantchev, Barnaby Martin, Stefan Szeider