Search Results for author: Ioannis Kevrekidis

Found 5 papers, 1 papers with code

On-Manifold Projected Gradient Descent

no code implementations23 Aug 2023 Aaron Mahler, Tyrus Berry, Tom Stephens, Harbir Antil, Michael Merritt, Jeanie Schreiber, Ioannis Kevrekidis

We use these tools to obtain adversarial examples that reside on a class manifold, yet fool a classifier.

Adversarial Attack

Constructing coarse-scale bifurcation diagrams from spatio-temporal observations of microscopic simulations: A parsimonious machine learning approach

no code implementations31 Jan 2022 Evangelos Galaris, Gianluca Fabiani, Ioannis Gallos, Ioannis Kevrekidis, Constantinos Siettos

For our illustrations, we implemented the proposed method to construct the one-parameter bifurcation diagram of the 1D FitzHugh-Nagumo PDEs from data generated by $D1Q3$ Lattice Boltzmann simulations.

feature selection

Time Series Forecasting Using Manifold Learning

no code implementations7 Oct 2021 Panagiotis Papaioannou, Ronen Talmon, Ioannis Kevrekidis, Constantinos Siettos

We address a three-tier numerical framework based on manifold learning for the forecasting of high-dimensional time series.

EEG GPR +3

Coarse-grained and emergent distributed parameter systems from data

no code implementations16 Nov 2020 Hassan Arbabi, Felix P. Kemeth, Tom Bertalan, Ioannis Kevrekidis

We explore the derivation of distributed parameter system evolution laws (and in particular, partial differential operators and associated partial differential equations, PDEs) from spatiotemporal data.

Variable Detection

Particles to Partial Differential Equations Parsimoniously

1 code implementation9 Nov 2020 Hassan Arbabi, Ioannis Kevrekidis

Equations governing physico-chemical processes are usually known at microscopic spatial scales, yet one suspects that there exist equations, e. g. in the form of Partial Differential Equations (PDEs), that can explain the system evolution at much coarser, meso- or macroscopic length scales.

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