Fast Partial Reallocation in Combinatorial Auctions for Iterative Resource Allocation

  • Authors:
  • Naoki Fukuta;Takayuki Ito

  • Affiliations:
  • Shizuoka University, Hamamatsu, Japan 4328011;Nagoya Institute of Technology, Gokiso-cho, Japan 4668555

  • Venue:
  • Agent Computing and Multi-Agent Systems
  • Year:
  • 2009

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Abstract

In this paper, we propose enhanced approximation algorithms of combinatorial auction that are suitable for the purpose of periodical reallocation of items. Our algorithms are designed to effectively reuse the last solutions to speeding up initial approximation performance. We show experimental results that show our proposed algorithms outperform existing algorithms in some aspects when the existing bids are not deleted. Also, we propose an enhanced algorithm that effectively avoids undesirable reuse of last solutions in the algorithm. This is especially effective when some existing bids are deleted from the last cycle. Furthermore, our algorithms satisfy two desirable properties: WPM for final results and Weak-WPM for intermediate results.