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Geodesic Mappings of Equiaffine and Ricci Symmetric Spaces

Mathematical Notes, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berezovskii, Volodymyr   +2 more
openaire   +3 more sources

Geodesic Maps “in the Large” of Ricci-Flat Spaces with $$n$$ Complete Geodesic Lines

Mathematical Notes, 2020
The authors study global maps preserving geodesics from a pseudo-Riemannian manifold to Ricci-flat pseudo-Riemannian manifold. Two sufficient conditions for such map to be affine, are found. One of these conditions is the following: The scalar curvature vanishes at a point of the source manifold and complete geodesic lines through this point with ...
Mikeš, Josef   +2 more
openaire   +3 more sources

Random fields representation over manifolds via isometric feature mapping‐based dimension reduction

Comput. Aided Civ. Infrastructure Eng., 2021
Generating random fields over irregular geometries (e.g., two‐dimensional (2D) manifolds embedded in the three‐dimensional (3D) Euclidean space) is a great challenge because the geometry structure is complex and the correlation function can hardly be ...
D. Feng, Yan Liang, X. Ren, Jie Li
semanticscholar   +1 more source

Evolutionary Multitasking Optimization Enhanced by Geodesic Flow Kernel

IEEE Transactions on Emerging Topics in Computational Intelligence
In an era of parallel computing, evolutionary multitasking optimization (EMT) has become a popular optimization paradigm due to its ability to optimize several tasks simultaneously.
Fuhao Gao   +5 more
semanticscholar   +1 more source

Design method of variable slippage coefficient non‐geodesic filament‐wound composite pressure vessels

Polymer Composites
Previous studies on the design methods of filament winding paths for composite pressure vessels have mainly focused on geodesic and constant slippage coefficient non‐geodesic patterns, neglecting the design of variable slippage coefficients along the ...
Yutao Wang   +4 more
semanticscholar   +1 more source

SiNGR: Brain Tumor Segmentation via Signed Normalized Geodesic Transform Regression

International Conference on Medical Image Computing and Computer-Assisted Intervention
One of the primary challenges in brain tumor segmentation arises from the uncertainty of voxels close to tumor boundaries. However, the conventional process of generating ground truth segmentation masks fails to treat such uncertainties properly.
T. Dang, Huy Hoang Nguyen, A. Tiulpin
semanticscholar   +1 more source

Geodesic Fuzzy Rough Sets for Discriminant Feature Extraction

IEEE transactions on fuzzy systems
Feature extraction is a fundamental and challenging task in machine learning, which aims at extracting a subset of significant and discriminant features from raw data for various downstream tasks. The extraction process involves mapping the original data
Xiaoling Yang   +3 more
semanticscholar   +1 more source

Almost geodesic curves and geodesic mappings

Итоги науки и техники Серия «Современная математика и ее приложения Тематические обзоры», 2023
L. Ryparova, Josef Mikeš, Patrik Peška
openaire   +1 more source

Almost Geodesic Mappings of Spaces with Affine Connection

Journal of Mathematical Sciences, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berezovskii, V. E., Mikeš, J.
openaire   +1 more source

Fast geodesic saliency map for Infrared Imagery

2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015
In this work, a saliency map calculation method for Infrared Imagery has been proposed and the resulting map is used for segmentation of the salient objects in the image. The proposed method exploits the geodesic distance concept and computational complexity is much less than the similar methods.
openaire   +1 more source

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