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    COCOA
    2009
    Springer
    149views Discrete Geometry» more  COCOA 2009»
    A PTAS for Node-Weighted Steiner Tree in Unit Disk Graphs
    14 years 6 months ago
    A PTAS for Node-Weighted Steiner Tree in Unit Disk Graphs
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    Abstract. The node-weighted Steiner tree problem is a variation of classical Steiner minimum tree problem. Given a graph G = (V, E) with node weight function C : V → R+ and a sub...
    Xianyue Li, Xiao-Hua Xu, Feng Zou, Hongwei Du, Pen...
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