Beyond Highway Dimension: Small Distance Labels Using Tree Skeletons

  title={Beyond Highway Dimension: Small Distance Labels Using Tree Skeletons},
  author={Adrian Kosowski and Laurent Viennot},
The goal of a hub-based distance labeling scheme for a network G = (V,E) is to assign a small subset S(u) ⊆ V to each node u ∈ V , in such a way that for any pair of nodes u, v, the intersection of hub sets S(u) ∩ S(v) contains a node on the shortest uv-path. The existence of small hub sets, and consequently efficient shortest path processing algorithms, for road networks is an empirical observation. A theoretical explanation for this phenomenon was proposed by Abraham et al. (SODA 2010… CONTINUE READING
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