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» Minimum congestion spanning trees in planar graphs
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COMPGEOM
1993
ACM
15 years 3 months ago
Worst-Case Bounds for Subadditive Geometric Graphs
We consider graphs such as the minimum spanning tree, minimum Steiner tree, minimum matching, and traveling salesman tour for n points in the d-dimensional unit cube. For each of ...
Marshall W. Bern, David Eppstein
STOC
2010
ACM
295views Algorithms» more  STOC 2010»
15 years 4 months ago
Approximation Schemes for Steiner Forest on Planar Graphs and Graphs of Bounded Treewidth
We give the first polynomial-time approximation scheme (PTAS) for the Steiner forest problem on planar graphs and, more generally, on graphs of bounded genus. As a first step, w...
MohammadHossein Bateni, MohammadTaghi Hajiaghayi a...
COCOON
1999
Springer
15 years 4 months ago
An External Memory Data Structure for Shortest Path Queries
We present results related to satisfying shortest path queries on a planar graph stored in external memory. Let N denote the number of vertices in the graph and let sort(N) denote...
David A. Hutchinson, Anil Maheshwari, Norbert Zeh
IPCO
2010
184views Optimization» more  IPCO 2010»
15 years 1 months ago
Computing Minimum Multiway Cuts in Hypergraphs from Hypertree Packings
Hypergraph multiway cut problem is a problem of finding a minimum capacity set of hyperedges whose removal divides a given hypergraph into a specified number of connected componen...
Takuro Fukunaga
MOBIHOC
2012
ACM
13 years 2 months ago
Oblivious low-congestion multicast routing in wireless networks
We propose a routing scheme to implement multicast communication in wireless networks. The scheme is oblivious, compact, and completely decentralized. It is intended to support dy...
Antonio Carzaniga, Koorosh Khazaei, Fabian Kuhn