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Hierarchical Hub Labelings for Shortest Paths

Ittai Abraham, Daniel Delling, Andrew V. Goldberg, and Renato F. Werneck


We study hierarchical hub labelings for computing shortest paths. Our new theoretical insights on the structure of hierarchical labels lead to faster preprocessing algorithms, making the labeling approach practical for a wider class of graphs and enabling real-time traffic updates on road networks. We also find smaller labels, improving the query speed.


Publication typeTechReport
PublisherMicrosoft Research
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