Results 61 to 70 of about 885,152 (196)

Contact Geometry of Hyperbolic Equations of Generic Type [PDF]

, 2008
We study the contact geometry of scalar second order hyperbolic equations in the plane of generic type. Following a derivation of parametrized contact-invariants to distinguish Monge-Ampere (class 6-6), Goursat (class 6-7) and generic (class 7-7 ...
The, Dennis
core   +3 more sources

Perceptual Low-Rank Learning and Geometry-Preserving Feature Selection for Categorizing High-Resolution Aerial Photos

IEEE Access, 2023
Recognizing the multiple categories of an high-resolution (HR) aerial photos is an indispensable technique in geoscience and remote sensing. In this work, a perceptual low-rank algorithm combined with a geometry-preserving feature selection (FS) is ...
Junwu Zhou, Fuji Ren
doaj   +1 more source

A study of global monopole in Lyra geometry

, 2007
A class of exact static solution around a global monopole resulting from the breaking of a global S0(3) symmetry is obtained in the context of Lyra geometry. Our solution is shown to possess an interesting feature like wormholes space-time.
F. RAHAMAN, Kibble T. W. B., P. GHOSH, S. MAL, Vilenkin A.   +4 more
core   +1 more source

GeoAT: Geometry-Aware Attention Feature Matching Network

IEEE Access
Attention mechanisms have achieved remarkable success in the field of computer vision. However, in the context of image matching with large deformations, attention often suffers from divergence issues.
Yan Li, Yingdan Wu, Yang Ming, Yong Zhang, Zhesheng Cheng   +4 more
doaj   +1 more source

Recursive block splitting in feature-driven decoder-side depth estimation

ETRI Journal, 2022
This paper presents a study on the use of encoder-derived features in decoder-side depth estimation. The scheme of multiview video encoding does not require the transmission of depth maps (which carry the geometry of a three-dimensional scene) as only a ...
Błażej Szydełko, Adrian Dziembowski, Dawid Mieloch, Marek Domański, Gwangsoon Lee   +4 more
doaj   +1 more source

Multiview Differential Geometry of Curves

, 2016
The field of multiple view geometry has seen tremendous progress in reconstruction and calibration due to methods for extracting reliable point features and key developments in projective geometry.
Fabbri, Ricardo, Kimia, Benjamin
core   +1 more source

Film Edge Nonlocal Spin Valves

, 2009
Spintronics is a new paradigm for integrated digital electronics. Recently established as a niche for nonvolatile magnetic random access memory (MRAM), it offers new functionality while demonstrating low power and high speed performance.
Butler W. H., Garzon S., Godfrey R., Heiblum M., Hoffmann A., Johnson M., Johnson M., Johnson M., Johnson M., Jorzick J., Kimura T., Kimura T., Lou X., Maranville B. B., Mourachkine A., Saha D., Stiles M. D., Tombros N., Urech M., Valenzuela S. O., Xia K., Žutić I.   +21 more
core   +1 more source

The Geometry of Concepts: Sparse Autoencoder Feature Structure

Entropy
Sparse autoencoders have recently produced dictionaries of high-dimensional vectors corresponding to the universe of concepts represented by large language models.
Yuxiao Li, Eric J. Michaud, David D. Baek, Joshua Engels, Xiaoqing Sun, Max Tegmark   +5 more
doaj   +1 more source

Quantum Structure of Geometry: Loopy and fuzzy?

, 2007
In any attempt to build a quantum theory of gravity, a central issue is to unravel the structure of space-time at the smallest scale. Of particular relevance is the possible definition of coordinate functions within the theory and the study of their ...
Corichi, Alejandro, Zapata, Jose A.
core   +1 more source

Geometric pinning and antimixing in scaffolded lipid vesicles

Nature Communications, 2020
Lipid bilayers feature an intricate interplay between membrane geometry and its chemical composition but lack of a model system with simultaneous control over membrane shape and composition prevented a fundamental understanding of curvature-induced ...
Melissa Rinaldin, Piermarco Fonda, Luca Giomi, Daniela J. Kraft   +3 more
doaj   +1 more source