A note on a selfish bin packing problem

  • Authors:
  • Ruixin Ma;György Dósa;Xin Han;Hing-Fung Ting;Deshi Ye;Yong Zhang

  • Affiliations:
  • School of Software, Dalian University of Technology, Dalian, China;Department of Mathematics, University of Pannonia, Veszprém, Hungary;School of Software, Dalian University of Technology, Dalian, China;Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong;College of Computer Science, Zhejiang University, Hangzhou, China 310027;Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Beijing, China

  • Venue:
  • Journal of Global Optimization
  • Year:
  • 2013

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Abstract

In this paper, we consider a selfish bin packing problem, where each item is a selfish player and wants to minimize its cost. In our new model, if there are k items packed in the same bin, then each item pays a cost 1/k, where k 驴 1. First we find a Nash Equilibrium (NE) in time O(n log n) within a social cost at most 1.69103OPT + 3, where OPT is the social cost of an optimal packing; where n is the number of items or players; then we give tight bounds for the worst NE on the social cost; finally we show that any feasible packing can be converged to a Nash Equilibrium in O(n 2) steps without increasing the social cost.