The Hierarchy in Grid Graphs

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2013
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HELMERT, Malte, ed.. Proceedings of the Sixth International Symposium on Combinatorial Search (SoCS-2013), 11 - 13 July 2013, Leavenworth, Washington, USA. Palo Alto, Calif.: AAAI Press, 2013, pp. 209-210. ISBN 978-1-57735-632-5
Zusammenfassung

Many speed-up techniques developed for accelerating the computation of shortest paths in road networks, like reach or contraction hierarchies, are based on the property that some streets are ’more important’ than others, e.g. on long routes the usage of an interstate is almost inevitable. In grids there is no obvious hierarchy among the edges, especially if the costs are uniform. Nevertheless we will show that contraction hierarchies can be applied to grid graphs as well. We will point out interesting connections to speed-up techniques shaped for routing on grids, like swamp hierarchies and jump points, and provide experimental results for game maps, mazes, random grids and rooms.

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004 Informatik
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route planning; grid graph; contraction hierarchies
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The Sixth International Symposium on Combinatorial Search, 11. Juli 2013 - 13. Juli 2013, Leavenworth, WA, USA
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ISO 690STORANDT, Sabine, 2013. The Hierarchy in Grid Graphs. The Sixth International Symposium on Combinatorial Search. Leavenworth, WA, USA, 11. Juli 2013 - 13. Juli 2013. In: HELMERT, Malte, ed.. Proceedings of the Sixth International Symposium on Combinatorial Search (SoCS-2013), 11 - 13 July 2013, Leavenworth, Washington, USA. Palo Alto, Calif.: AAAI Press, 2013, pp. 209-210. ISBN 978-1-57735-632-5
BibTex
@inproceedings{Storandt2013Hiera-46629,
  year={2013},
  title={The Hierarchy in Grid Graphs},
  url={https://www.aaai.org/ocs/index.php/SOCS/SOCS13/paper/view/7227},
  isbn={978-1-57735-632-5},
  publisher={AAAI Press},
  address={Palo Alto, Calif.},
  booktitle={Proceedings of the Sixth International Symposium on Combinatorial Search (SoCS-2013), 11 - 13 July 2013, Leavenworth, Washington, USA},
  pages={209--210},
  editor={Helmert, Malte},
  author={Storandt, Sabine}
}
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