Abstract
We demonstrate how Dijkstra’s algorithm for shortest path queries can be accelerated by using precomputed shortest path distances. Our approach allows a completely flexible tradeoff between query time and space consumption for precomputed distances. In particular, sublinear space is sufficient to give the search a strong “sense of direction”. We evaluate our approach experimentally using large, real-world road networks.
Partially supported by DFG grant SA 933/1-2.
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Maue, J., Sanders, P., Matijevic, D. (2006). Goal Directed Shortest Path Queries Using Precomputed Cluster Distances. In: Àlvarez, C., Serna, M. (eds) Experimental Algorithms. WEA 2006. Lecture Notes in Computer Science, vol 4007. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11764298_29
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DOI: https://doi.org/10.1007/11764298_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-34597-8
Online ISBN: 978-3-540-34598-5
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