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» Approximate centerpoints with proofs
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ICFEM
2009
Springer
14 years 5 months ago
Circular Coinduction with Special Contexts
Coinductive proofs of behavioral equivalence often require human ingenuity, in that one is expected to provide a “good” relation extending one’s goal with additional lemmas, ...
Dorel Lucanu, Grigore Rosu
ISSAC
2009
Springer
144views Mathematics» more  ISSAC 2009»
14 years 5 months ago
H-LLL: using householder inside LLL
We describe a new LLL-type algorithm, H-LLL, that relies on Householder transformations to approximate the underlying Gram-Schmidt orthogonalizations. The latter computations are ...
Ivan Morel, Damien Stehlé, Gilles Villard
FOCS
2008
IEEE
14 years 4 months ago
Two Query PCP with Sub-Constant Error
We show that the NP-Complete language 3SAT has a PCP verifier that makes two queries to a proof of almost-linear size and achieves sub-constant probability of error o(1). The ver...
Dana Moshkovitz, Ran Raz
FOCS
2008
IEEE
14 years 4 months ago
On the Hardness of Being Truthful
The central problem in computational mechanism design is the tension between incentive compatibility and computational ef ciency. We establish the rst significant approximability ...
Christos H. Papadimitriou, Michael Schapira, Yaron...
INFOCOM
2007
IEEE
14 years 4 months ago
An Accurate Link Model and Its Application to Stability Analysis of FAST TCP
— This paper presents a link model which captures the queue dynamics when congestion windows of TCP sources change. By considering both the self-clocking and the link integrator ...
Ao Tang, Krister Jacobsson, Lachlan L. H. Andrew, ...