A New Minimum Cost Flow Algorithm with Applications to Graph Drawing
A New Minimum Cost Flow Algorithm with Applications to Graph Drawing
复制标题
一种新的最小成本流算法及其在绘图中的应用
DOI:
10.1007/3-540-62495-3_49
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发表时间:
1996
期刊:
影响因子:
--
通讯作者:
R. Tamassia
中科院分区:
文献类型:
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作者:
Ashim Garg;R. Tamassia
LetNbe a single-source single-sink flow network withnnodes,marcs, and positive arc costs. We present a pseudo-polynomial algorithm that computes a maximum flow of minimum cost forNin timeO(χ3/4m√logn), whereχis the cost of the flow. This improves upon previously known methods for networks where the minimum cost of the flow is small. We also show an application of our flow algorithm to a well-known graph drawing problem. Namely, we show how to compute a planar orthogonal drawing with the minimum number of bends for ann- vertex embedded planar graph in timeO(n7/4√logn). This is the first subquadratic algorithm for bend minimization. The previous best bound for this problem wasO(n2logn) [19].