Coordinating simple and unreliable agents

  • Authors:
  • Kagan Tumer

  • Affiliations:
  • NASA Ames Research Center, Moffett Field, CA

  • Venue:
  • AAMAS '06 Proceedings of the fifth international joint conference on Autonomous agents and multiagent systems
  • Year:
  • 2006

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Abstract

Coordinating a large number of simple and unreliable agents to achieve a global objective poses a unique design challenge: How to achieve robust system level behavior in spite of the computational/reliability limitations of the agents. We investigate agent coordination in the difficult optimization problem of selecting the subset of sensing devices with distortions that provides the smallest average distortion [1]. We approach problem by assigning an agent to each device and having that agent use a simple reinforcement learning algorithm to determine whether to be part of the aggregate device. Our results show that the right agent reward structure provides significant improvements over both traditional search methods and traditional multi-agent methods. Furthermore, even in extreme cases of agent failures (i.e., half the agents fail during the simulation) this approach still outperforms a failure-free and centralized search algorithm.