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Operations Research and the Captivating Study of Networks

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The Advantages <strong>of</strong> <strong>the</strong> Nagurney <strong>and</strong><br />

Qiang Network Efficiency Measure<br />

• The measure captures dem<strong>and</strong>s, flows, costs, <strong>and</strong><br />

behavior <strong>of</strong> users, in addition to network topology;<br />

• The resulting importance definition <strong>of</strong> network<br />

components is applicable <strong>and</strong> well-defined even in<br />

<strong>the</strong> case <strong>of</strong> disconnected networks;<br />

• It can be used to identify <strong>the</strong> importance (<strong>and</strong><br />

ranking) <strong>of</strong> ei<strong>the</strong>r nodes, or links, or both; <strong>and</strong><br />

• It can be applied to assess <strong>the</strong><br />

efficiency/performance <strong>of</strong> a wide range <strong>of</strong> network<br />

systems.

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