Coalition Structure Generation in Multi-Agent Systems With Positive and Negative Externalities

Rahwan, Talal, Michalak, Tomasz, Jennings, Nicholas, Wooldridge, Michael and McBurney, Peter (2009) Coalition Structure Generation in Multi-Agent Systems With Positive and Negative Externalities. At The 21st International Joint Conference on Artificial Intelligence (IJCAI-09), Pasadena, USA, , 257-263.


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Coalition structure generation has received considerable attention in recent research. Several algorithms have been proposed to solve this problem in Characteristic Function Games (CFGs), where every coalition is assumed to perform equally well in any coalition structure containing it. In contrast, very little attention has been given to the more general Partition Function Games (PFGs), where a coalition’s effectiveness may change from one coalition structure to another. In this paper, we deal with PFGs with positive and negative externalities. In this context, we identify the minimum search that is required in order to establish a bound on the quality of the best coalition structure found. We then develop an anytime algorithm that improves this bound with further search, and show that it outperforms the existing state-of-the-art algorithms by orders of magnitude.

Item Type: Conference or Workshop Item (Speech)
Keywords: Coalition Formation, Multi-Agent Systems, Combinatorial Optimization
Divisions : Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Agents, Interactions & Complexity
ePrint ID: 267285
Accepted Date and Publication Date:
May 2009Published
Date Deposited: 21 Apr 2009 20:38
Last Modified: 31 Mar 2016 14:14
Further Information:Google Scholar

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