98 search results - page 15 / 20 » Vertex Cover Approximations on Random Graphs |
ISAAC
2010
Springer
13 years 5 months ago
2010
Springer
We study the NP-complete TARGET SET SELECTION (TSS) problem occurring in social network analysis. Complementing results on its approximability and extending results for its restric...
COR
2000
13 years 7 months ago
2000
The multi-vehicle covering tour problem is de"ned on a graph G"(<6=, E), where = is a set of vertices that must collectively be covered by up to m vehicles. The probl...
ESA
2003
Springer
14 years 1 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 ...
FOCS
2008
IEEE
14 years 2 months ago
2008
IEEE
We show that for k ≥ 3 even the Ω(n) level of the Lasserre hierarchy cannot disprove a random k-CSP instance over any predicate type implied by k-XOR constraints, for example ...
APPROX
2007
Springer
14 years 2 months ago
2007
Springer
Consider a scenario where one desires to simulate the execution of some graph algorithm on random input graphs of huge, perhaps even exponential size. Sampling and storing these h...