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Miltiadis Kofinas

6 accepted papers

2024

Amortized Equation Discovery in Hybrid Dynamical Systems

ICML 2024poster

Hybrid dynamical systems are prevalent in science and engineering to express complex systems with continuous and discrete states. To learn laws of systems, all previous methods for equation discovery in hybrid systems follow a two-stage paradigm, i.e. they first group time series into small cluster…

2024

Graph Neural Networks for Learning Equivariant Representations of Neural Networks

ICLR 2024oral

Neural networks that process the parameters of other neural networks find applications in domains as diverse as classifying implicit neural representations, generating neural network weights, and predicting generalization errors. However, existing approaches either overlook the inherent permutation…

2024

How to Train Neural Field Representations: A Comprehensive Study and Benchmark

CVPR 2024poster

Neural fields (NeFs) have recently emerged as a versatile method for modeling signals of various modalities including images shapes and scenes. Subsequently a number of works have explored the use of NeFs as representations for downstream tasks e.g. classifying an image based on the parameters of a…

2023

Latent Field Discovery in Interacting Dynamical Systems with Neural Fields

NeurIPS 2023poster

Systems of interacting objects often evolve under the influence of underlying field effects that govern their dynamics, yet previous works have abstracted away from such effects, and assume that systems evolve in a vacuum. In this work, we focus on discovering these fields, and infer them from the o…

2021

Roto-translated Local Coordinate Frames For Interacting Dynamical Systems

NeurIPS 2021poster

Modelling interactions is critical in learning complex dynamical systems, namely systems of interacting objects with highly non-linear and time-dependent behaviour. A large class of such systems can be formalized as $\textit{geometric graphs}$, $\textit{i.e.}$ graphs with nodes positioned in the Euc…