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» Solving Steiner tree problems in graphs to optimality
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117
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SIAMDM
2010
113views more  SIAMDM 2010»
14 years 7 months ago
The VPN Problem with Concave Costs
We consider the following network design problem. We are given an undirected network with costs on the edges, a set of terminals, and an upper bound for each terminal limiting the ...
Samuel Fiorini, Gianpaolo Oriolo, Laura Sanit&agra...
110
Voted
ASPDAC
1998
ACM
79views Hardware» more  ASPDAC 1998»
15 years 5 months ago
Simultaneous Wire Sizing and Wire Spacing in Post-Layout Performance Optimization
- In this paper, we study the wire sizing and wire spacing problem for post-layout performance optimization under Elmore delay model. Both ground capacitance and coupled capacitanc...
Jiang-An He, Hideaki Kobayashi
115
Voted
ATMOS
2010
308views Optimization» more  ATMOS 2010»
14 years 11 months ago
The Team Orienteering Problem: Formulations and Branch-Cut and Price
The Team Orienteering Problem is a routing problem on a graph with durations associated to the arcs and profits assigned to visiting the vertices. A fixed number of identical ve...
Marcus Poggi de Aragão, Henrique Viana, Edu...
IPL
1998
119views more  IPL 1998»
15 years 11 days ago
A 2.5-Factor Approximation Algorithm for the k-MST Problem
The k-MST problem requires finding that subset of at least k vertices of a given graph whose Minimum Spanning Tree has least weight amongst all subsets of at least k vertices. Th...
Sunil Arya, H. Ramesh
ECCV
2002
Springer
16 years 2 months ago
What Energy Functions Can Be Minimized via Graph Cuts?
In the last few years, several new algorithms based on graph cuts have been developed to solve energy minimization problems in computer vision. Each of these techniques constructs...
Vladimir Kolmogorov, Ramin Zabih