115 search results - page 5 / 23 » Hardness and Approximation Results for Packing Steiner Trees |
ICALP
2005
Springer
15 years 2 months ago
2005
Springer
In the Euclidean group Traveling Salesman Problem (TSP), we are given a set of points P in the plane and a set of m connected regions, each containing at least one point of P. We w...
ICCAD
2006
IEEE
15 years 6 months ago
2006
IEEE
We present the first efficient approach to global routing that takes spacing-dependent costs into account and provably finds a near-optimum solution including these costs. We sh...
ADHOCNOW
2005
Springer
15 years 3 months ago
2005
Springer
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...
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ESA
2003
Springer
15 years 2 months ago
2003
Springer
We prove that various geometric covering problems, related to the Travelling Salesman Problem cannot be efficiently approximated to within any constant factor unless P = NP. This ...
JCO
2007
14 years 9 months ago
2007
Let G = (V, E) be a connected multigraph, whose edges are associated with labels specified by an integer-valued function L : E → N. In addition, each label ℓ ∈ N has a non-...