A lower bound of 1 + ϕ for truthful scheduling mechanisms

  • Authors:
  • Elias Koutsoupias;Angelina Vidali

  • Affiliations:
  • Department of Informatics, University of Athens;Department of Informatics, University of Athens

  • Venue:
  • MFCS'07 Proceedings of the 32nd international conference on Mathematical Foundations of Computer Science
  • Year:
  • 2007

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Abstract

We give an improved lower bound for the approximation ratio of truthful mechanisms for the unrelated machines scheduling problem. The mechanism design version of the problem which was proposed and studied in a seminal paper of Nisan and Ronen is at the core of the emerging area of Algorithmic Game Theory. The new lower bound 1+ϕ ≈ 2.618 is a step towards the final resolution of this important problem.