Learning emergent partial differential equations in a learned emergent space

FP Kemeth, T Bertalan, T Thiem, F Dietrich… - Nature …, 2022 - nature.com
We propose an approach to learn effective evolution equations for large systems of
interacting agents. This is demonstrated on two examples, a well-studied system of coupled …

Effluent quality prediction in papermaking wastewater treatment processes using dynamic Bayesian networks

H Zhang, C Yang, X Shi, H Liu - Journal of Cleaner Production, 2021 - Elsevier
Effective online modeling of papermaking wastewater treatment processes (WWTPs) is an
important means to ensure wastewater recycling and harmless discharge. A composite …

Emergent spaces for coupled oscillators

TN Thiem, M Kooshkbaghi, T Bertalan… - Frontiers in …, 2020 - frontiersin.org
Systems of coupled dynamical units (eg, oscillators or neurons) are known to exhibit
complex, emergent behaviors that may be simplified through coarse-graining: a process in …

Data-driven and physics informed modeling of Chinese Hamster Ovary cell bioreactors

T Cui, T Bertalan, N Ndahiro, P Khare… - Computers & Chemical …, 2024 - Elsevier
Fed-batch culture is an established operation mode for the production of biologics using
mammalian cell cultures. Quantitative modeling integrates both kinetics for some key …

An emergent space for distributed data with hidden internal order through manifold learning

FP Kemeth, SW Haugland, F Dietrich, T Bertalan… - IEEE …, 2018 - ieeexplore.ieee.org
Manifold-learning techniques are routinely used in mining complex spatiotemporal data to
extract useful, parsimonious data representations/parametrizations; these are, in turn, useful …

Global and local reduced models for interacting, heterogeneous agents

TN Thiem, FP Kemeth, T Bertalan, CR Laing… - … Journal of Nonlinear …, 2021 - pubs.aip.org
Large collections of coupled, heterogeneous agents can manifest complex dynamical
behavior presenting difficulties for simulation and analysis. However, if the collective …

Coarse-grained descriptions of dynamics for networks with both intrinsic and structural heterogeneities

T Bertalan, Y Wu, C Laing, CW Gear… - Frontiers in …, 2017 - frontiersin.org
Finding accurate reduced descriptions for large, complex, dynamically evolving networks is
a crucial enabler to their simulation, analysis, and ultimately design. Here, we propose and …

Symmetry breaking in networks of globally coupled oscillators: from clustering to chimera states

FP Kemeth - 2019 - mediatum.ub.tum.de
We investigate networks of globally coupled limit cycle oscillators. In small ensembles, we
discuss how symmetry-broken states, such as cluster and chimera states, bifurcate off the …

[图书][B] Making Sense of a Complex World: A Data-Driven Approach

TN Thiem - 2022 - search.proquest.com
In this dissertation we develop a suite of data-driven modeling techniques for dynamical
systems by leveraging manifold learning, dimensionality reduction, and deep learning …

[PDF][PDF] An equal space for complex data with unknown internal order: Observability, gauge invariance and manifold learning

FP Kemeth, SW Haugland, F Dietrich… - arXiv preprint arXiv …, 2017 - academia.edu
We discuss the interplay between manifold-learning techniques, which can extract intrinsic
order from observations of complex dynamics, and systems modeling considerations …