S. Koenig, X. Zheng, C. Tovey, R. Borie, P. Kilby, V. Markakis and P. Keskinocak. Agent Coordination with Regret Clearing. In Proceedings of the AAAI Conference on Artificial Intelligence (AAAI), pages 101-107, 2008.

Abstract: Sequential single-item auctions can be used for the distributed allocation of tasks to cooperating agents. We study how to improve the team performance of sequential single-item auctions while still controlling the agents in real time. Our idea is to assign that task to agents during the current round whose regret is large, where the regret of a task is defined as the difference of the second-smallest and smallest team costs resulting from assigning the task to the second-best and best agent, respectively. Our experimental results show that sequential single-item auctions with regret clearing indeed result in smaller team costs than standard sequential single-item auctions for three out of four combinations of two different team objectives and two different capacity constraints (including no capacity constraints). Errata: This version of the paper provides new experimental results that correct a minor imprecision in the calculation of the travel distance between two locations as well as a mistake in the implementation of the rollout algorithm that we used in this paper for the first ime. Fortunately, the qualitative relationships of the different algorithms and thus the conclusions of this paper remained unchanged.

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