Results 41 to 50 of about 144 (139)
The Motion Picture: Leveraging Movement to Enhance AI Object Detection in Ecology
Ecology and Evolution, Volume 15, Issue 8, August 2025.As AI methods become increasingly popular to automatically analyse ecology data, we investigate using movement information as a means to improve traditional object detection approaches (which are limited to static image information only) on over 35,000 annotated images from 1480 terrestrial, marine and freshwater locations, the most extensive ...
Ben Maslen +4 more
wiley +1 more source
Characterization of Holomorphic Bisectional Curvature of GCR-Lightlike Submanifolds
Advances in Mathematical Physics, 2012 We obtain the expressions for sectional curvature, holomorphic sectional curvature, and holomorphic bisectional curvature of a GCR-lightlike submanifold of an indefinite Kaehler manifold.
Sangeet Kumar +2 more
doaj +1 more source
Bi-Slant Submanifolds of Para Hermitian Manifolds
Mathematics, 2019 In this paper, we introduce the notion of bi-slant submanifolds of a para Hermitian manifold. They naturally englobe CR, semi-slant, and hemi-slant submanifolds. We study their first properties and present a whole gallery of examples.
Pablo Alegre, Alfonso Carriazo
doaj +1 more source
On Semiparallel and Weyl-semiparallel Hypersurfaces of Kaehler Manifolds [PDF]
Kyungpook mathematical journal, 2009 We study on semiparallel and Weyl semiparallel Sasakian hypersurfaces of Kaehler manifolds. We prove that a (2n + 1)-dimensional Sasakian hypersurface M of a (2n+2)-dimensional Kaehler manifold is semiparallel if and only if it is totally umbilical with unit mean curvature, if dimM = 3 and is a Calabi-Yau manifold, then is flat at each point of M.
Özgür, Cihan +2 more
openaire +4 more sources
Methods in Ecology and Evolution, Volume 16, Issue 1, Page 145-159, January 2025.Abstract Benthic fishes are a common target of scientific monitoring but are difficult to quantify because of their close association to bottom habitats that are hard to access. Advances in image‐acquisition technologies, machine vision and deep learning have made capturing and quantifying fishes with cameras increasingly feasible.
Peter C. Esselman +3 more
wiley +1 more source
On CR-submanifolds of the six-dimensional sphere
International Journal of Mathematics and Mathematical Sciences, 1995 We consider proper CR-submanifolds of the six-dimensional sphere S6. We prove that S6 does not admit compact proper CR-submanifolds with non-negative sectional curvature and integrable holomorphic distribution.
M. A. Bashir
doaj +1 more source
American Journal of Biological Anthropology, Volume 185, Issue 4, December 2024.Abstract A central goal of biological anthropology is connecting environmental variation to differences in host physiology, biology, health, and evolution. The microbiome represents a valuable pathway for studying how variation in host environments impacts health outcomes.
Melissa B. Manus +5 more
wiley +1 more source
Integrability of almost Kaehler manifolds [PDF]
Proceedings of the American Mathematical Society, 1969 The tangent bundle of a nonflat Riemannian manifold is the only known example of a non Kählerian almost Kähler manifold, flatness being the integrability condition of the almost complex structure. These spaces are not compact. For those which are, it is a strong conjecture that if the almost hermitian metric is an Einstein metric the manifold is ...
openaire +2 more sources
Computer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 24, Page 3670-3684, 15 December 2024.Abstract High‐resolution image segmentation is essential in structural health monitoring (SHM), enabling accurate detection and quantification of structural components and damages. However, conventional convolutional neural network‐based segmentation methods face limitations in real‐world deployment, particularly when handling high‐resolution images ...
M. Azimi, T. Y. Yang
wiley +1 more source
CR-hypersurfaces of complex projective space
International Journal of Mathematics and Mathematical Sciences, 1994 We consider compact n-dimensional minimal foliate CR-real submanifolds of a complex projective space. We show that these submanifolds are great circles on a 2-dimensional sphere provided that the square of the length of the second fundamental form is ...
M. A. Bashir
doaj +1 more source