Results 121 to 130 of about 2,269,164 (264)

Some Properties of Gromov–Hausdorff Distances [PDF]

open access: yesDiscrete & Computational Geometry, 2012
The Gromov–Hausdorff distance between metric spaces appears to be a useful tool for modeling some object matching procedures. Since its conception it has been mainly used by pure mathematicians who are interested in the topology generated by this distance, and quantitative consequences of the definition are not very common.
openaire   +3 more sources

Interactions between universal composition operators and complex dynamics

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 3, September 2025.
Abstract This paper is concerned with universality properties of composition operators Cf$C_f$, where the symbol f$f$ is given by a transcendental entire function restricted to parts of its Fatou set. We determine universality of Cf$C_f$ when f$f$ is restricted to (subsets of) Baker and wandering domains.
Vasiliki Evdoridou   +2 more
wiley   +1 more source

Deformations of Anosov subgroups: Limit cones and growth indicators

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 3, September 2025.
Abstract Let G$G$ be a connected semisimple real algebraic group. We prove that limit cones vary continuously under deformations of Anosov subgroups of G$G$ under a certain convexity assumption, which turns out to be necessary. We apply this result to the notion of sharpness for the action of a discrete subgroup on a non‐Riemannian homogeneous space ...
Subhadip Dey, Hee Oh
wiley   +1 more source

3D Segmentation for Multi-Organs in CT Images

open access: yesELCVIA Electronic Letters on Computer Vision and Image Analysis, 2013
The study addresses the challenging problem of automatic segmentation of the human anatomy needed for radiation dose calculations. Three-dimensional extensions of two well-known state-of-the art segmentation techniques are proposed and tested for ...
Mariusz Bajger, Gobert Lee, Martin Caon
doaj   +1 more source

COMPUTING THE HAUSDORFF DISTANCE BETWEEN CURVED OBJECTS

open access: yesInternational Journal of Computational Geometry & Applications, 2008
The Hausdorff distance between two sets of curves is a measure for the similarity of these objects and therefore an interesting feature in shape recognition. If the curves are algebraic computing the Hausdorff distance involves computing the intersection points of the Voronoi edges of the one set with the curves in the other.
Alt, Helmut, Scharf, Ludmila
openaire   +3 more sources

PIKART: A Comprehensive Global Catalog of Atmospheric Rivers

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 15, 16 August 2025.
Abstract Catalogs of atmospheric rivers (ARs) are vital resources to advance AR science. Many available AR catalogs have regional extent, although only global AR catalogs can record large‐scale heterogeneities in AR transport. However, identification of ARs at a global scale presents substantial challenges caused by regionally and temporally varying ...
S. M. Vallejo‐Bernal   +3 more
wiley   +1 more source

Prospective Evaluation of Automated Contouring for CT-Based Brachytherapy for Gynecologic Malignancies

open access: yesAdvances in Radiation Oncology
Purpose: The use of deep learning to auto-contour organs at risk (OARs) in gynecologic radiation treatment is well established. Yet, there is limited data investigating the prospective use of auto-contouring in clinical practice. In this study, we assess
Abigayle C. Kraus, MD   +10 more
doaj   +1 more source

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