Results 81 to 90 of about 1,075,372 (346)

Image classification using local tensor singular value decompositions

open access: yes, 2017
From linear classifiers to neural networks, image classification has been a widely explored topic in mathematics, and many algorithms have proven to be effective classifiers.
Horesh, Lior   +2 more
core   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez   +2 more
wiley   +1 more source

BlessemFlood21: A High-Resolution Georeferenced Dataset for Advanced Analysis of River Flood Scenarios

open access: yesIEEE Access
Flooding is one of the most common natural disasters, causing emergencies and significant damage to infrastructure. Amid crises, entities such as the World Food Program employ remotely sensed images, usually via drones, to analyze the situation quickly ...
Vladyslav Polushko   +8 more
doaj   +1 more source

Lower secondary students’ views about mathematicians depicted as mathematics teachers

open access: yesLUMAT, 2019
The present study examined lower secondary students’ images of mathematics, comprised of stated attitudes to and perceived needs for mathematics, and views about mathematicians and their work.
Vesife Hatisaru
doaj   +1 more source

Accelerated Alternating Minimization for X-ray Tomographic Reconstruction [PDF]

open access: yesarXiv, 2021
While Computerized Tomography (CT) images can help detect disease such as Covid-19, regular CT machines are large and expensive. Cheaper and more portable machines suffer from errors in geometry acquisition that downgrades CT image quality. The errors in geometry can be represented with parameters in the mathematical model for image reconstruction.
arxiv  

The Kinematic Image of 2R Dyads and Exact Synthesis of 5R Linkages

open access: yes, 2015
We characterise the kinematic image of the constraint variety of a 2R dyad as a regular ruled quadric in a 3-space that contains a "null quadrilateral". Three prescribed poses determine, in general, two such quadrics.
Rad, Tudor-Dan, Schröcker, Hans-Peter
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Modeling Variational Inpainting Methods With Splines

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Mathematical methods of image inpainting often involve the discretization of a given continuous model. Typically, this is done by a pointwise discretization.
Florian Boßmann   +2 more
doaj   +1 more source

Mathematics of Photoacoustic and Thermoacoustic Tomography [PDF]

open access: yesHandbook of Mathematical Methods in Imaging, Vol. 2, 2010, pp.817 - 866, 2009
This is the manuscript of the chapter for a planned Handbook of Mathematical Methods in Imaging that surveys the mathematical models, problems, and algorithms of the Thermoacoustic (TAT) and Photoacoustic (PAT) Tomography. TAT and PAT represent probably the most developed of the several novel ``hybrid'' methods of medical imaging.
arxiv  

Symmetries in TEM imaging of crystals with strain [PDF]

open access: yesarXiv, 2022
TEM images of strained crystals often exhibit symmetries, the source of which is not always clear. To understand these symmetries we distinguish between symmetries that occur from the imaging process itself and symmetries of the inclusion that might affect the image.
arxiv  

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