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» Some Lower Bounds on Geometric Separability Problems
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PODC
1993
ACM
15 years 1 months ago
A Lower Bound on Wait-Free Counting
A counting protocol (mod m) consists of shared memory bits - referred to as the counter - and of a procedure for incrementing the counter value by 1 (mod m). The procedure may be ...
Shlomo Moran, Gadi Taubenfeld
ICRA
2010
IEEE
97views Robotics» more  ICRA 2010»
14 years 8 months ago
Enhanced trajectory tracking control with active lower bounded stiffness control for cable robot
— Cable robots have seen considerable recent interest ensuing from their ability to combine a large workspace with significant payload capacity. However, the cables can apply for...
Kun Yu, Leng-Feng Lee, Chin Pei Tang, Venkat Krovi
FOCS
1998
IEEE
15 years 1 months ago
Quantum Lower Bounds by Polynomials
We examine the number T of queries that a quantum network requires to compute several Boolean functions on f0;1gN in the black-box model. We show that, in the blackbox model, the ...
Robert Beals, Harry Buhrman, Richard Cleve, Michel...
ESA
2004
Springer
129views Algorithms» more  ESA 2004»
15 years 3 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...
CORR
2008
Springer
68views Education» more  CORR 2008»
14 years 9 months ago
Improved lower bound for deterministic broadcasting in radio networks
We consider the problem of deterministic broadcasting in radio networks when the nodes have limited knowledge about the topology of the network. We show that for every determinist...
Carlos Brito, Shailesh Vaya