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145
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COCOA
2009
Springer
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Discrete Geometry
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COCOA 2009
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A PTAS for Node-Weighted Steiner Tree in Unit Disk Graphs
15 years 9 months ago
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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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