Results 1 to 10 of about 84,089 (265)

A Parameter Refinement Method for Ptychography Based on Deep Learning Concepts

open access: yesCondensed Matter, 2021
X-ray ptychography is an advanced computational microscopy technique, which is delivering exceptionally detailed quantitative imaging of biological and nanotechnology specimens, which can be used for high-precision X-ray measurements.
Francesco Guzzi   +4 more
doaj   +1 more source

Automatic Differentiation in Prolog

open access: yesTheory and Practice of Logic Programming, 2023
AbstractAutomatic differentiation (AD) is a range of algorithms to compute the numeric value of a function’s (partial) derivative, where the function is typically given as a computer program or abstract syntax tree. AD has become immensely popular as part of many learning algorithms, notably for neural networks. This paper uses Prolog to systematically
Schrijvers, Tom   +2 more
openaire   +5 more sources

A comparison of two approaches to the global stability analysis using the example of the cylinder flow problem

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In the paper, the two main approaches to calculating the Jacobian of the Navier–Stokes equations, namely, the continuum (CA) and discrete (DA) approaches, have been directly compared for the first time. The DA to calculating this Jacobian was implemented
Golubkov Valentin, Garbaruk Andrey
doaj   +1 more source

Wide-Angular Tolerance Optical Filter Design and Its Application to Green Pepper Segmentation

open access: yesSensors, 2023
The optical filter is critical in many applications requiring wide-angle imaging perception. However, the transmission curve of the typical optical filter will change at an oblique incident angle due to the optical path of the incident light change.
Jun Yu, Shu Zhan, Toru Kurihara
doaj   +1 more source

Mixed-language automatic differentiation [PDF]

open access: yesOptimization Methods and Software, 2018
As Automatic Differentiation (AD) usage is spreading to larger and more sophisticated applications, problems arise for codes that use several programming languages. This work describes the issues involved in interoperability between languages and focuses on the main issue which is parameter passing.
Pascual, Valérie, Hascoët, Laurent
openaire   +3 more sources

Selective Path Automatic Differentiation: Beyond Uniform Distribution on Backpropagation Dropout

open access: yesIEEE Access, 2023
This paper introduces Selective Path Automatic Differentiation (SPAD), a novel approach to reducing memory consumption and mitigating overfitting in gradient-based models for embedded artificial intelligence.
Paul Peseux   +3 more
doaj   +1 more source

Introduction to Automatic Differentiation [PDF]

open access: yesPAMM, 2003
AbstractAutomatic, or algorithmic, differentiation (AD) is a chain rule‐based technique for evaluating derivatives of functions given as computer programs for their elimination. We review the main characteristics and application of AD and illustrate the methodology on a simple example.
Griewank, Andreas, Walther, Andrea
openaire   +2 more sources

Automatic Differentiation for Solid Mechanics [PDF]

open access: yesArchives of Computational Methods in Engineering, 2020
30 pages, 9 figures, 2 appendices, accepted on Archives of Computational Methods in ...
Andrea Vigliotti, Ferdinando Auricchio
openaire   +3 more sources

AutoMat: automatic differentiation for generalized standard materials on GPUs [PDF]

open access: yesComputational Mechanics, 2021
AbstractWe propose a universal method for the evaluation of generalized standard materials that greatly simplifies the material law implementation process. By means of automatic differentiation and a numerical integration scheme, AutoMat reduces the implementation effort to two potential functions. By moving AutoMat to the GPU, we close the performance
Johannes Blühdorn   +2 more
openaire   +4 more sources

Automatic differentiable numerical renormalization group

open access: yesPhysical Review Research, 2022
14 pages, 7 figures and 2 ...
Jonas B. Rigo, Andrew K. Mitchell
openaire   +3 more sources

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