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» Communication Complexity Lower Bounds by Polynomials
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CORR
2010
Springer
111views Education» more  CORR 2010»
13 years 7 months ago
Improved complexity bounds for real root isolation using Continued Fractions
We consider the problem of isolating the real roots of a square-free polynomial with integer coefficients using (variants of) the continued fraction algorithm (CF). We introduce a...
Elias P. Tsigaridas
ESA
2004
Springer
129views Algorithms» more  ESA 2004»
14 years 1 months ago
Contraction and Treewidth Lower Bounds
Edge contraction is shown to be a useful mechanism to improve lower bound heuristics for treewidth. A successful lower bound for treewidth is the degeneracy: the maximum over all ...
Hans L. Bodlaender, Arie M. C. A. Koster, Thomas W...
COLT
2006
Springer
13 years 11 months ago
Efficient Learning Algorithms Yield Circuit Lower Bounds
We describe a new approach for understanding the difficulty of designing efficient learning algorithms. We prove that the existence of an efficient learning algorithm for a circui...
Lance Fortnow, Adam R. Klivans
GLOBECOM
2006
IEEE
14 years 1 months ago
Link Performance Bounds in Homogeneous Optically Switched Ring Networks
— We consider a ring topology with limited or full switching capability as deployed in high bandwidth metro optical networks and develop a model to estimate the probability of bl...
Shujia Gong, Bijan Jabbari
DAGSTUHL
2004
13 years 9 months ago
The communication complexity of the Exact-N Problem revisited
If Alice has x, y, Bob has x, z and Carol has y, z can they determine if x + y + z = N? They can if (say) Alice broadcasts x to Bob and Carol; can they do better? Chandra, Furst, a...
William I. Gasarch, James Glenn, Andrey Utis