Constant-Time Approximation Algorithms for the Optimum Branching Problem on Sparse Graphs


We propose constant-time algorithms for approximating the weight of the maximum weight branching in the general graph model. A directed graph is called a branching if it is acyclic and each vertex has at most one incoming edge. An edge-weighted digraph G, in which weights are given in real values in [0, 1], of average degree d is given as an oracle access… (More)
DOI: 10.1109/ICNC.2012.78

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