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» On Approximability of Minimum Bisection Problem
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SODA
2012
ACM
262views Algorithms» more  SODA 2012»
13 years 3 days ago
A polynomial-time approximation scheme for planar multiway cut
Given an undirected graph with edge lengths and a subset of nodes (called the terminals), the multiway cut (also called the multi-terminal cut) problem asks for a subset of edges,...
MohammadHossein Bateni, MohammadTaghi Hajiaghayi, ...
STOC
2002
ACM
91views Algorithms» more  STOC 2002»
15 years 10 months ago
The importance of being biased
The Minimum Vertex Cover problem is the problem of, given a graph, finding a smallest set of vertices that touches all edges. We show that it is NP-hard to approximate this proble...
Irit Dinur, Shmuel Safra
WADS
2009
Springer
274views Algorithms» more  WADS 2009»
15 years 4 months ago
Approximating Transitive Reductions for Directed Networks
Abstract. We consider minimum equivalent digraph problem, its maximum optimization variant and some non-trivial extensions of these two types of problems motivated by biological an...
Piotr Berman, Bhaskar DasGupta, Marek Karpinski
ADHOCNOW
2005
Springer
15 years 3 months ago
Heuristic Algorithms for Minimum Bandwith Consumption Multicast Routing in Wireless Mesh Networks
We study the problem of computing multicast trees with minimal bandwidth consumption in multi-hop wireless mesh networks. For wired networks, this problem is known as the Steiner t...
Pedro M. Ruiz, Antonio F. Gómez-Skarmeta
INFOCOM
2008
IEEE
15 years 4 months ago
Minimum Cost Topology Construction for Rural Wireless Mesh Networks
—IEEE 802.11 WiFi equipment based wireless mesh networks have recently been proposed as an inexpensive approach to connect far-flung rural areas. Such networks are built using h...
Debmalya Panigrahi, Partha Dutta, Sharad Jaiswal, ...