Shortest Path Tree Computation in Dynamic Graphs

  title={Shortest Path Tree Computation in Dynamic Graphs},
  author={Edward P. F. Chan and Yaya Yang},
  journal={IEEE Transactions on Computers},
Let G = (V, E, omega) be a simple digraph, in which all edge weights are nonnegative real numbers. Let G' be obtained from G by an application of a set of edge weight updates to G. Let sisinV and let Ts and Ts' be Shortest Path Trees (SPTs) rooted at s in G and G', respectively. The Dynamic Shortest Path (DSP) problem is to compute Ts' from Ts. Existing work on this problem focuses on either a single edge weight change or multiple edge weight changes in which some of them are incorrect or are… CONTINUE READING
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