A Two-Stage Hybrid Local Search for the Vehicle Routing Problem with Time Windows
Transportation Science
Transportation Science
Randomized adaptive spatial decoupling for large-scale vehicle routing with time windows
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 1
A two-stage hybrid algorithm for pickup and delivery vehicle routing problems with time windows
Computers and Operations Research
Spatial, temporal, and hybrid decompositions for large-scale vehicle routing with time windows
CP'10 Proceedings of the 16th international conference on Principles and practice of constraint programming
Large neighborhood search and adaptive randomized decompositions for flexible jobshop scheduling
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Three
Computational disaster management
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
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This paper considers the joint repair and restoration of the electrical power system after significant disruptions caused by natural disasters. This problem is computationally challenging because, when the goal is to minimize the size of the blackout, it combines a routing and a power restoration component, both of which are difficult on their own. The joint repair/restoration problem has been successfully approached with a 3-stage decomposition, whose last step is a multiple-vehicle, pickup-and-delivery routing problem with precedence and capacity constraints whose goal is to minimize the sum of the delivery times (PDRPPCCDT). Experimental results have shown that the PDRPPCCDT is a bottleneck and this paper proposes a Randomized Adaptive Vehicle Decomposition (RAVD) to scale to very large power outages. The RAVD approach is shown to produce significant computational benefits and provide high-quality results for infrastructures with more than 24000 components and 1200 damaged items, giving rise to PDRPPCCDT with more than 2500 visits.