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<article-title>Robust Coordination to Sustain Throughput of an Unstable Agent Network</article-title>
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<author><a href="mailto:r.gautam@aist.go.jp"><name>Rajesh Gautam</name></a></author>
<aff>University of Tsukuba <br/>1-2-1 Namiki, Tsukuba Ibaraki, Japan</aff>

<author><a href="mailto:k.miyashita@aist.go.jp"><name>Kazuo Miyashita</name></a></author>
<aff>AIST &#38; University of Tsukuba<br/> 1-2-1 Namiki, Tsukuba Ibaraki, Japan
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<title>ABSTRACT</title>
<p>We present a multi-agent coordination technique to maintain
throughput of a large-scale agent network system in
the face of failures of agents. Failures do not just deteriorate
throughput of the system but also create and change
bottlenecks in the system. Since loss of bottleneck's capacity
degrades the overall system performance, the system should
identify bottlenecks dynamically and keep their utilization
at a high level. In our system, CABS, information about
an agent's urgency of jobs to fulll demanded throughput
and maintain its utilization is passed to upstream agents in
the network. Upstream agents utilize this information to
identify bottleneck agents and coordinate their actions to
provide the bottlenecks with necessary and sucient jobs
for preventing their starvation and congestion. We empirically
evaluate CABS using a benchmark problem of the
semiconductor fabrication process, which is a good example
of a large-scale network system, in comparison with a
well-known traditional manufacturing control method.</p>
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