Results 121 to 130 of about 25,799 (301)
Projected Gradient Descent Method for Tropical Principal Component Analysis over Tree Space
MathematicsTropical Principal Component Analysis (PCA) is an analogue of the classical PCA in the setting of tropical geometry, and applied it to visualize a set of gene trees over a space of phylogenetic trees, which is a union of lower-dimensional polyhedral ...
Ruriko Yoshida
doaj +1 more source
3D Reconstruction with Uncalibrated Cameras Using the Six-Line Conic Variety
, 2008 We present new algorithms for the recovery of the Euclidean structure from a projective calibration of a set of cameras with square pixels but otherwise arbitrarily varying intrinsic and extrinsic parameters.
Carballeira, Pablo +6 more
core +1 more source
Advanced Intelligent Discovery, EarlyView.AI‐based tools enable rapid characterization of bacterial ultrastructure in low‐dose cryogenic transmission electron microscopy. The envelope thickness tool quantifies membrane thickness and anisotropy. The flagella module analyzes filament morphology and detects cell‐flagella contacts.
Sita Sirisha Madugula +10 more
wiley +1 more source
The intrinsic geometry of a convex surface in Galilean space
Қарағанды университетінің хабаршысы. Математика сериясыThis paper investigates the intrinsic geometry of a convex surface in the Galilean space. The Galilean space, as a special case of a pseudo-Euclidean space, possesses a degenerate metric.
A. Artykbaev, B.M. Sultanov
doaj +1 more source
A nonstandard characterization of regular surfaces
, 2007 In the present work we approach the study of surfaces using Nonstandard Analysis, by providing first a nonstandard characterization of a surface.
Almeida, R
core
Kant's Views on Non-Euclidean Geometry [PDF]
, 2012 Kant's arguments for the synthetic a priori status of geometry are generally taken to have been refuted by the development of non-Euclidean geometries.
Cuffaro, Michael
core
Advanced Intelligent Discovery, EarlyView.AI‐BioMech is a deep learning framework that predicts the mechanical behavior of biological cellular materials directly from 2D images. By replacing traditional finite element analysis with semantic segmentation, it identifies stress and strain distributions with 99% accuracy, offering a high‐speed, scalable alternative for analyzing complex, aperiodic
Haleema Sadia +2 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.A skin‐conformal wearable device based on laser‐induced graphene is developed for continuous strain measurement across the circumference of the forearm for gesture recognition and hand‐tracking applications. Post material optimization, the strain sensor array is integrated with a wearable wireless readout circuit for real‐time control of a robotic arm,
Vinay Kammarchedu +2 more
wiley +1 more source
Proof in dynamic geometry contexts
, 1998 Proof lies at the heart of mathematics yet we know from research in mathematics education that proof is an elusive concept for many mathematics students.
Hoyles, Celia, Jones, Keith
core
Isospectral deformations of Eguchi-Hanson spaces a case study in noncompact noncommutative geometry [PDF]
, 2008 We study the isospectral deformations of the Eguchi-Hanson spaces along a torus isometric action in the noncompact noncommutative geometry. We concentrate on locality, smoothness and summability conditions of the nonunital spectral triples, and relate ...
Yang, Chen
core