Results 51 to 60 of about 19,658 (300)
Nonstandard Models and Optimization
, 2008 This is an overview of a few possibilities that are open by model theory in applied mathematics. Most attention is paid to the present state and frontiers of the Cauchy method of majorants, approximation of operator equations with finite-dimensional analogs, and the Lagrange multiplier principle in multiobjective decision making.
openaire +3 more sources
Matrix Nonstandard Numerical Schemes for Epidemic Models [PDF]
, 2010 This paper is concerned with the construction and developing of several nonstandard finite difference (NSFD) schemes in matrix form in order to obtain numerical solutions of epidemic models.
Villanueva Micó, Rafael Jacinto +2 more
core
Predicting Performance of Hall Effect Ion Source Using Machine Learning
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park +8 more
wiley +1 more source
Exotic $U(1)$ symmetries, duality, and fractons in 3+1-dimensional quantum field theory
SciPost Physics, 2020 We extend our exploration of nonstandard continuum quantum field theories in 2+1 dimensions to 3+1 dimensions. These theories exhibit exotic global symmetries, a peculiar spectrum of charged states, unusual gauge symmetries, and surprising dualities ...
Nathan Seiberg, Shu-Heng Shao
doaj +1 more source
, 2011 Langrock R, MacDonald IL, Zucchini W. Some nonstandard stochastic volatility models and their estimation using structured hidden Markov models. Journal of Empirical Finance.
Iain L. MacDonald +6 more
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Advanced Intelligent Systems, EarlyView.OntoLogX is an autonomous AI agent that uses large language models to transform unstructured cyber security logs into ontology grounded knowledge graphs. By integrating retrieval augmented generation, iterative correction, and a light‐weight log ontology, OntoLogX produces semantically consistent intelligence that links raw log events to MITRE ATT & CK
Luca Cotti +4 more
wiley +1 more source
Nonstandard Models Of The Weak Second Order Theory Of One Successor
, 2016 In this paper, we seek to classify the nonstandard models of the weak (monadic) second order theory of one successor (WS1S), the theory of the two-typed structure consisting of natural numbers and finite sets of natural number equipped with a successor (+
Kern, Thomas Robert, Kern, Thomas
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Nonstandard principles for generalized functions [PDF]
, 2011 We show that principles from nonstandard analysis hold to some extent for nonlinear generalized functions. The generalized functions under consideration are constructed as families of functions modulo a free filter, as it is usually done in applied ...
Vernaeve, Hans +2 more
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Design‐for‐Benchmarking in Soft Robotics: Navigating Component‐System Dichotomy
Advanced Intelligent Systems, EarlyView.Soft robotics faces a profound evaluation challenge: the Component‐System Dichotomy, where isolated component tests fail to predict integrated performance. This article presents a systematic survey of critical reporting gaps across actuation, sensing, and control.
Matteo Lo Preti +4 more
wiley +1 more source
Stability of discrete-time HIV dynamics models with three categories of infected CD4+ T-cells
Advances in Difference Equations, 2019 This paper studies the global stability of two discrete-time HIV infection models. The models integrate (i) latently infected cells, (ii) long-lived chronically infected cells and (iii) short-lived infected cells.
A. M. Elaiw, M. A. Alshaikh
doaj +1 more source