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» On a Generalized Notion of Mistake Bounds
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PODS
2010
ACM
242views Database» more  PODS 2010»
14 years 19 days ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
COCO
2006
Springer
93views Algorithms» more  COCO 2006»
13 years 11 months ago
Making Hard Problems Harder
We consider a general approach to the hoary problem of (im)proving circuit lower bounds. We define notions of hardness condensing and hardness extraction, in analogy to the corres...
Joshua Buresh-Oppenheim, Rahul Santhanam
CRYPTO
2011
Springer
180views Cryptology» more  CRYPTO 2011»
12 years 7 months ago
Leakage-Resilient Zero Knowledge
In this paper, we initiate a study of zero knowledge proof systems in the presence of sidechannel attacks. Specifically, we consider a setting where a cheating verifier is allow...
Sanjam Garg, Abhishek Jain 0002, Amit Sahai
COLT
2007
Springer
13 years 11 months ago
An Efficient Re-scaled Perceptron Algorithm for Conic Systems
Abstract. The classical perceptron algorithm is an elementary algorithm for solving a homogeneous linear inequality system Ax > 0, with many important applications in learning t...
Alexandre Belloni, Robert M. Freund, Santosh Vempa...
SEMWEB
2005
Springer
14 years 1 months ago
Combining RDF and Part of OWL with Rules: Semantics, Decidability, Complexity
This paper extends the model theory of RDF with rules, placing an emphasis on integration with OWL and decidability of entailstart from an abstract syntax that views a rule as a pa...
Herman J. ter Horst