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Thursday, February 02, 2012
1:00 PM - 2:00 PM
CNLS Conference Room (TA-3, Bldg 1690)


Restoration of Interdependent Infrastructures

Pascal Van Hentenryck
NICTA (National ICT Australia Ltd) is Australia’s Information and Communications Technology Research Centre of Excellence

This talk considers how to restore interdependent infrastructures after a natural or man-made disaster. Such a restoration is extremely challenging from a computational standpoint as it combines a complex logistic problem with activation problems over complex infrastructure. We present a four-step approach which allows us to separate the logistic and restoration aspects, while ensuring an overall high quality restoration. The approach, which heavily exploits hybrid optimization, is validated on benchmarks using the electrical, gas, and transportation infrastructures of the United States. The experimental results show significant improvements over the practice in the field and the critical role of hybrid optimization to find high-quality solutions in reasonable time. (Joint work with Carleton Coffrin and Russell Bent)

Host: Russell Bent, Energy and Infrastructure Analysis D-4/Decision Applications