Task-oriented machine learning surrogates for tipping points of agent-based models

G Fabiani, N Evangelou, T Cui, JM Bello-Rivas… - Nature …, 2024 - nature.com
We present a machine learning framework bridging manifold learning, neural networks,
Gaussian processes, and Equation-Free multiscale approach, for the construction of …

Linking machine learning with multiscale numerics: Data-driven discovery of homogenized equations

H Arbabi, JE Bunder, G Samaey, AJ Roberts… - Jom, 2020 - Springer
The data-driven discovery of partial differential equations (PDEs) consistent with
spatiotemporal data is experiencing a rebirth in machine learning research. Training deep …

[HTML][HTML] Data-driven control of agent-based models: An equation/variable-free machine learning approach

DG Patsatzis, L Russo, IG Kevrekidis… - Journal of Computational …, 2023 - Elsevier
Abstract We present an Equation/Variable free machine learning (EVFML) framework for the
control of the collective dynamics of complex/multiscale systems modeled via …

Learning stochastic dynamics with statistics-informed neural network

Y Zhu, YH Tang, C Kim - Journal of Computational Physics, 2023 - Elsevier
We introduce a machine-learning framework named statistics-informed neural network
(SINN) for learning stochastic dynamics from data. This new architecture was theoretically …

Tasks makyth models: Machine learning assisted surrogates for tipping points

G Fabiani, N Evangelou, T Cui, JM Bello-Rivas… - arXiv preprint arXiv …, 2023 - arxiv.org
We present a machine learning (ML)-assisted framework bridging manifold learning, neural
networks, Gaussian processes, and Equation-Free multiscale modeling, for (a) detecting …

[HTML][HTML] Learning the temporal evolution of multivariate densities via normalizing flows

Y Lu, R Maulik, T Gao, F Dietrich… - … Journal of Nonlinear …, 2022 - pubs.aip.org
In this work, we propose a method to learn multivariate probability distributions using sample
path data from stochastic differential equations. Specifically, we consider temporally …

Extracting stochastic governing laws by non-local Kramers–Moyal formulae

Y Lu, Y Li, J Duan - … Transactions of the Royal Society A, 2022 - royalsocietypublishing.org
With the rapid development of computational techniques and scientific tools, great progress
of data-driven analysis has been made to extract governing laws of dynamical systems from …

Learning effective SDEs from Brownian dynamic simulations of colloidal particles

N Evangelou, F Dietrich, JM Bello-Rivas… - … Systems Design & …, 2023 - pubs.rsc.org
We construct a reduced, data-driven, parameter dependent effective stochastic differential
equation (eSDE) for electric-field mediated colloidal crystallization using data obtained from …

Data-driven model reduction of agent-based systems using the Koopman generator

JH Niemann, S Klus, C Schütte - PloS one, 2021 - journals.plos.org
The dynamical behavior of social systems can be described by agent-based models.
Although single agents follow easily explainable rules, complex time-evolving patterns …

Machine learning for the identification of phase transitions in interacting agent-based systems: A Desai-Zwanzig example

N Evangelou, DG Giovanis, GA Kevrekidis… - Physical Review E, 2024 - APS
Deriving closed-form analytical expressions for reduced-order models, and judiciously
choosing the closures leading to them, has long been the strategy of choice for studying …