Truthful Mechanisms for Exhibitions

  • George Christodoulou
  • Khaled Elbassioni
  • Mahmoud Fouz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6484)


We consider the following combinatorial auction: Given a range space Open image in new window, and m bidders interested in buying only ranges in Open image in new window, each bidder j declares her bid Open image in new window. We give a deterministic truthful mechanism, when the valuations are single-minded: when Open image in new window is a collection of fat objects (respectively, axis-aligned rectangles) in the plane, there is a truthful mechanism with a 1 + ε- (respectively, ⌈logn⌉)-approximation of the social welfare (where n is an upper bound on the maximum integral coordinate of each rectangle). We also consider the non-single-minded case, and design a randomized truthful-in-expectation mechanism with approximation guarantee O(1) (respectively, O(logm)).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • George Christodoulou
    • 1
    • 2
  • Khaled Elbassioni
    • 1
  • Mahmoud Fouz
    • 3
  1. 1.Max-Planck-Institut für InformatikSaarbrückenGermany
  2. 2.Cluster of Excellence “Multimodal Computing and Interaction”Universität des SaarlandesGermany
  3. 3.FR InformatikUniversität des SaarlandesSaarbrückenGermany

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