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ICIP
2007
IEEE
16 years 8 months ago
Statistically Driven Sparse Image Approximation
Finding the sparsest approximation of an image as a sum of basis functions drawn from a redundant dictionary is an NPhard problem. In the case of a dictionary whose elements form ...
Rosa M. Figueras i Ventura, Eero P. Simoncelli
IDEAS
2007
IEEE
107views Database» more  IDEAS 2007»
16 years 28 days ago
Examining the Performance of a Constraint-Based Database Cache
Constraint-based database caching aims at correctly answering SQL query predicates from a local cache database by exploiting constraints that have previously been used in selectin...
Andreas Bühmann, Joachim Klein 0002
WETICE
2007
IEEE
16 years 27 days ago
Towards Configurable Process Visualizations with Proviado
Visualizing complex business processes is an important task of process-aware information systems (PAIS). Current PAIS, however, fail in providing adequate mechanisms for visualizi...
Ralph Bobrik, Thomas Bauer
ICCBR
2007
Springer
16 years 24 days ago
An Analysis of Case-Based Value Function Approximation by Approximating State Transition Graphs
We identify two fundamental points of utilizing CBR for an adaptive agent that tries to learn on the basis of trial and error without a model of its environment. The first link co...
Thomas Gabel, Martin Riedmiller
LPNMR
2007
Springer
16 years 23 days ago
On the Effectiveness of Looking Ahead in Search for Answer Sets
Abstract. Most complete answer set solvers are based on DPLL. One of the constraint propagation methods is the so-called lookahead, which has been somewhat controversial, due to it...
Guohua Liu, Jia-Huai You