Results 11 to 20 of about 87,618 (263)

Optimization of Transcription Factor Genetic Circuits

open access: yesBiology, 2022
Transcription factors (TFs) affect the production of mRNAs. In essence, the TFs form a large computational network that controls many aspects of cellular function. This article introduces a computational method to optimize TF networks. The method extends
Steven A. Frank
doaj   +1 more source

Physics-Based Deep Learning for Flow Problems

open access: yesEnergies, 2021
It is the tradition for the fluid community to study fluid dynamics problems via numerical simulations such as finite-element, finite-difference and finite-volume methods.
Yubiao Sun, Qiankun Sun, Kan Qin
doaj   +1 more source

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

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

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

PINNs algorithm and its application in geotechnical engineering

open access: yesYantu gongcheng xuebao, 2021
The physical information neural networks (PINNs) algorithm, a new mesh-free algorithm, uses the automatic differential method to embed the partial differential equation directly into the neural networks so as to realize the intelligent solution of the ...
LAN Peng 1, LI Hai-chao 1, YE Xin-yu 1, ZHANG Sheng 1, SHENG Dai-chao 1, 2
doaj   +1 more source

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

Quantum Optimal Control via Semi-Automatic Differentiation [PDF]

open access: yesQuantum, 2022
We develop a framework of "semi-automatic differentiation" that combines existing gradient-based methods of quantum optimal control with automatic differentiation.
Michael H. Goerz   +2 more
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

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