239 search results - page 13 / 48 » Hardness and algorithms for rainbow connection |
AINA
2007
IEEE
15 years 3 months ago
2007
IEEE
— Wireless sensor networks are made up of hundreds of devices deployed over a distant or sensitive field to be monitored. Energy consumption is balanced by taking advantage of t...
APPROX
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. A fundamental goal of computational complexity (and foundations of cryptography) is to find a polynomial-time samplable distribution (e.g., the uniform distribution) and...
75
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ECCC
1998
14 years 9 months ago
1998
Impagliazzo and Wigderson IW97] have recently shown that if there exists a decision problem solvable in time 2O(n) and having circuit complexity 2 (n) (for all but nitely many n) ...
FOCS
2007
IEEE
15 years 3 months ago
2007
IEEE
We continue the recent line of work on the connection between semidefinite programming-based approximation algorithms and the Unique Games Conjecture. Given any boolean 2-CSP (or...
111
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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 ...