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Better Landmarks Within Reach
Workshop on Experimental and Efficient Algorithms, (2008): 38-51
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We present significant improvements to a practical algorithm for the point-to-point shortest path problem on road networks that com- bines Asearch, landmark-based lower bounds, and reach-based pruning. Through reach-aware landmarks, better use of cache, and improved algo- rithms for reach computation, we make preprocessing and queries fas...更多
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