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» Spacing memetic algorithms
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94
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COMPGEOM
2008
ACM
15 years 2 months ago
Predicates for line transversals to lines and line segments in three-dimensional space
When an observer is in a 3D scene, a topological change in the view arises when the line of sight is tangent to four objects. If we consider polyhedral scenes, the relevant lines ...
Olivier Devillers, Marc Glisse, Sylvain Lazard
108
Voted
DEXA
2008
Springer
155views Database» more  DEXA 2008»
15 years 2 months ago
NM-Tree: Flexible Approximate Similarity Search in Metric and Non-metric Spaces
So far, an efficient similarity search in multimedia databases has been carried out by metric access methods (MAMs), where the utilized similarity measure had to satisfy the metric...
Tomás Skopal, Jakub Lokoc
ICMLA
2008
15 years 2 months ago
A Bayesian Approach to Switching Linear Gaussian State-Space Models for Unsupervised Time-Series Segmentation
Time-series segmentation in the fully unsupervised scenario in which the number of segment-types is a priori unknown is a fundamental problem in many applications. We propose a Ba...
Silvia Chiappa
123
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ENTCS
2006
137views more  ENTCS 2006»
15 years 24 days ago
An Efficient Method for Computing Exact State Space of Petri Nets With Stopwatches
In this paper, we address the issue of the formal verification of real-time systems in the context of a preemptive scheduling policy. We propose an algorithm which computes the st...
Morgan Magnin, Didier Lime, Olivier H. Roux
72
Voted
SIAMSC
2008
97views more  SIAMSC 2008»
15 years 21 days ago
Improvement of Space-Invariant Image Deblurring by Preconditioned Landweber Iterations
The Landweber method is a simple and flexible iterative regularization algorithm, whose projected variant provides nonnegative image reconstructions. Since the method is usually v...
Paola Brianzi, Fabio Di Benedetto, Claudio Estatic...