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JSC
2010
96views more  JSC 2010»
13 years 6 months ago
On a generalization of Stickelberger's Theorem
We prove two versions of Stickelberger’s Theorem for positive dimensions and use them to compute the connected and irreducible components of a complex algebraic variety. If the ...
Peter Scheiblechner
AMW
2011
12 years 11 months ago
Bag Equivalence of Bounded Symmetry-Degree Conjunctive Queries with Inequalities
Abstract. We consider the problem of checking equivalence of conjunctive queries with inequalities under bag (multiset) semantics. The problem is known to be decidable in pspace an...
Mingmin Chen, Todd J. Green
STOC
2009
ACM
133views Algorithms» more  STOC 2009»
14 years 8 months ago
New direct-product testers and 2-query PCPs
The "direct product code" of a function f gives its values on all k-tuples (f(x1), . . . , f(xk)). This basic construct underlies "hardness amplification" in c...
Russell Impagliazzo, Valentine Kabanets, Avi Wigde...
TCC
2009
Springer
132views Cryptology» more  TCC 2009»
14 years 8 months ago
Authenticated Adversarial Routing
: The aim of this paper is to demonstrate the feasibility of authenticated throughput-ecient routing in an unreliable and dynamically changing synchronous network in which the majo...
Yair Amir, Paul Bunn, Rafail Ostrovsky
FOCS
2008
IEEE
14 years 2 months ago
What Can We Learn Privately?
Learning problems form an important category of computational tasks that generalizes many of the computations researchers apply to large real-life data sets. We ask: what concept ...
Shiva Prasad Kasiviswanathan, Homin K. Lee, Kobbi ...