A polynomial time approximation scheme for the square packing problem

  • Authors:
  • Klaus Jansen;Roberto Solis-Oba

  • Affiliations:
  • Institut für Informatik, Universität zu Kiel, Kiel, Germany;Department of Computer Science, The University of Western Ontario, London, Canada

  • Venue:
  • IPCO'08 Proceedings of the 13th international conference on Integer programming and combinatorial optimization
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

Given a set Q of squares with positive profits, the square packing problem is to select and pack a subset of squares of maximum profit into a rectangular bin R. We present a polynomial time approximation scheme for this problem, that for any value Ɛ 0 finds and packs a subset Q′ ⊆ Q of profit at least (1 - Ɛ)OPT, where OPT is the profit of an optimum solution. This settles the approximability of the problem and improves on the previously best approximation ratio of 5/4 +Ɛ achieved by Harren's algorithm.