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Sequential optimality and coordination in multiagent systems

By Craig Boutilier


Coordination of agent activities is a key problem in multiagent systems. Set in a larger decision theoretic context, the existence of coordination problems leads to difficulty in evaluating the utility of a situation. This in turn makes defining optimal policies for sequential decision processes problematic. We propose a method for solving sequential multiagent decision problems by allowing agents to reason explicitly about specific coordination mechanisms. We define an extension of value iteration in which the system’s state space is augmented with the state of the coordination mechanism adopted, allowing agents to reason about the short and long term prospects for coordination, the long term consequences of (mis)coordination, and make decisions to engage or avoid coordination problems based on expected value. We also illustrate the benefits of mechanism generalization.

Year: 1999
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