Partitioning graphs to speedup Dijkstra's algorithm

  title={Partitioning graphs to speedup Dijkstra's algorithm},
  author={Rolf H. M{\"o}hring and Heiko Schilling and Birk Sch{\"u}tz and Dorothea Wagner and Thomas Willhalm},
  journal={ACM Journal of Experimental Algorithmics},
We study an acceleration method for point-to-point shortest-path computations in large and sparse directed graphs with given nonnegative arc weights. The acceleration method is called the arc-flag approach and is based on Dijkstra's algorithm. In the arc-flag approach, we allow a preprocessing of the network data to generate additional information, which is then used to speedup shortest-path queries. In the preprocessing phase, the graph is divided into regions and information is gathered on… CONTINUE READING
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