A fully dynamic algorithm for distributed shortest paths

  title={A fully dynamic algorithm for distributed shortest paths},
  author={Serafino Cicerone and Gabriele Di Stefano and Daniele Frigioni and Umberto Nanni},
  journal={Theor. Comput. Sci.},
We propose a fully-dynamic distributed algorithm for the all-pairs shortest paths problem on general networks with positive real edge weights. If ∆σ is the number of pairs of nodes changing the distance after a single edge modification σ (insert, delete, weight decrease, or weight increase) then the message complexity of the proposed algorithm is O(n∆σ) in the worst case, where n is the number of nodes of the network. If ∆σ = o(n2), this is better than recomputing everything from scratch after… CONTINUE READING


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