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140
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PODS
2007
ACM
171views Database» more  PODS 2007»
16 years 3 months ago
Monadic datalog over finite structures with bounded treewidth
Bounded treewidth and Monadic Second Order (MSO) logic have proved to be key concepts in establishing fixed-parameter tractability results. Indeed, by Courcelle's Theorem we ...
Georg Gottlob, Reinhard Pichler, Fang Wei
156
Voted
SODA
2010
ACM
185views Algorithms» more  SODA 2010»
15 years 2 months ago
Solving MAX-r-SAT Above a Tight Lower Bound
We present an exact algorithm that decides, for every fixed r ≥ 2 in time O(m) + 2O(k2 ) whether a given multiset of m clauses of size r admits a truth assignment that satisfi...
Noga Alon, Gregory Gutin, Eun Jung Kim, Stefan Sze...
126
Voted
CRV
2006
IEEE
69views Robotics» more  CRV 2006»
15 years 9 months ago
Photometric Stereo with Nearby Planar Distributed Illuminants
This paper considers the problem of shape-from-shading using nearby planar distributed illuminants. It is shown that a rectangular planar nearby distributed uniform isotropic illu...
James J. Clark
198
Voted
DASC
2006
IEEE
15 years 9 months ago
On Recognizing Virtual Honeypots and Countermeasures
— Honeypots are decoys designed to trap, delay, and gather information about attackers. We can use honeypot logs to analyze attackers’ behaviors and design new defenses. A virt...
Xinwen Fu, Wei Yu, Dan Cheng, Xuejun Tan, Kevin St...
247
Voted
POPL
2006
ACM
16 years 4 months ago
Small bisimulations for reasoning about higher-order imperative programs
We introduce a new notion of bisimulation for showing contextual equivalence of expressions in an untyped lambda-calculus with an explicit store, and in which all expressed values...
Vasileios Koutavas, Mitchell Wand