Parameterized and Exact Computation

Volume 4169 of the series Lecture Notes in Computer Science pp 121-129

Parameterized Approximation Problems

  • Rodney G. DowneyAffiliated withVictoria University
  • , Michael R. FellowsAffiliated withThe University of Newcastle
  • , Catherine McCartinAffiliated withMassey University

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Up to now, most work in the area of parameterized complexity has focussed on exact algorithms for decision problems. The goal of this paper is to apply parameterized ideas to approximation. We begin exploration of parameterized approximation problems, where the problem in question is a parameterized decision problem, and the required approximation factor is treated as a second parameter for the problem.