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» On Approximability of Minimum Bisection Problem
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MONET
2006
103views more  MONET 2006»
13 years 8 months ago
Minimum-Energy Broadcasting in Multi-hop Wireless Networks Using a Single Broadcast Tree
In this paper we address the minimum-energy broadcast problem in multi-hop wireless networks, so that all broadcast requests initiated by different source nodes take place on the s...
Ioannis Papadimitriou, Leonidas Georgiadis
APPROX
2008
Springer
137views Algorithms» more  APPROX 2008»
13 years 10 months ago
Approximating Directed Weighted-Degree Constrained Networks
Given a graph H = (V, F) with edge weights {w(e) : e F}, the weighted degree of a node v in H is {w(vu) : vu F}. We give bicriteria approximation algorithms for problems that see...
Zeev Nutov
COCOON
2009
Springer
14 years 3 months ago
On Finding Small 2-Generating Sets
Given a set of positive integers S, we consider the problem of finding a minimum cardinality set of positive integers X (called a minimum 2-generating set of S) s.t. every element...
Isabelle Fagnot, Guillaume Fertin, Stéphane...
FOCS
2008
IEEE
14 years 3 months ago
Degree Bounded Network Design with Metric Costs
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
Yuk Hei Chan, Wai Shing Fung, Lap Chi Lau, Chun Ko...
CORR
2011
Springer
146views Education» more  CORR 2011»
13 years 3 months ago
An Implicit Cover Problem in Wild Population Study
In an implicit combinatorial optimization problem, the constraints are not enumerated explicitly but rather stated implicitly through equations, other constraints or auxiliary alg...
Mary V. Ashley, Tanya Y. Berger-Wolf, Wanpracha Ar...