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» Betweenness Centrality : Algorithms and Lower Bounds
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ECCC
2008
168views more  ECCC 2008»
13 years 7 months ago
Algebrization: A New Barrier in Complexity Theory
Any proof of P = NP will have to overcome two barriers: relativization and natural proofs. Yet over the last decade, we have seen circuit lower bounds (for example, that PP does n...
Scott Aaronson, Avi Wigderson
STOC
1999
ACM
85views Algorithms» more  STOC 1999»
13 years 12 months ago
A Theorem on Sensitivity and Applications in Private Computation
In this paper we prove a theorem that gives an (almost) tight upper bound on the sensitivity of a multiple-output Boolean function in terms of the sensitivity of its coordinates an...
Anna Gál, Adi Rosén
WDAG
2004
Springer
113views Algorithms» more  WDAG 2004»
14 years 1 months ago
Bounded Version Vectors
Abstract. Version vectors play a central role in update tracking under optimistic distributed systems, allowing the detection of obsolete or inconsistent versions of replicated dat...
José Bacelar Almeida, Paulo Sérgio A...
SODA
2003
ACM
131views Algorithms» more  SODA 2003»
13 years 9 months ago
Zonotopes as bounding volumes
Zonotopes are centrally symmetric polytopes with a very special structure: they are the Minkowski sum of line segments. In this paper we propose to use zonotopes as bounding volum...
Leonidas J. Guibas, An Nguyen, Li Zhang
FOCS
2007
IEEE
14 years 2 months ago
Adaptive Simulated Annealing: A Near-optimal Connection between Sampling and Counting
We present a near-optimal reduction from approximately counting the cardinality of a discrete set to approximately sampling elements of the set. An important application of our wo...
Daniel Stefankovic, Santosh Vempala, Eric Vigoda