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AAAI
2007
13 years 10 months ago
Filtering, Decomposition and Search Space Reduction for Optimal Sequential Planning
We present in this paper a hybrid planning system which combines constraint satisfaction techniques and planning heuristics to produce optimal sequential plans. It integrates its ...
Stéphane Grandcolas, C. Pain-Barre
CPAIOR
2008
Springer
13 years 9 months ago
The Accuracy of Search Heuristics: An Empirical Study on Knapsack Problems
Theoretical models for the evaluation of quickly improving search strategies, like limited discrepancy search, are based on specific assumptions regarding the probability that a va...
Daniel H. Leventhal, Meinolf Sellmann
ISBI
2007
IEEE
14 years 2 months ago
A Hybrid Filtering Approach to Retinal Vessel Segmentation
We propose a novel vessel enhancement filter for retinal images. The filter can be used as a preprocessing step in applications such as vessel segmentation/visualization, and pa...
Chang-Hua Wu, Gady Agam, Peter Stanchev
CVPR
2010
IEEE
14 years 4 months ago
A probabilistic image jigsaw puzzle solver
We explore the problem of reconstructing an image from a bag of square, non-overlapping image patches, the jigsaw puzzle problem. Completing jigsaw puzzles is challenging and requ...
Taeg Sang Cho, Shai Avidan, William Freeman
CPAIOR
2005
Springer
14 years 1 months ago
Constraint Programming Based Column Generation for Employee Timetabling
The Employee Timetabling Problem (ETP) is a general class of problems widely encountered in service organizations (such as call centers for instance). Given a set of activities, a ...
Sophie Demassey, Gilles Pesant, Louis-Martin Rouss...