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Summary of Learnable & Interpretable Model Combination in Dynamical Systems Modeling, by Tobias Thummerer and Lars Mikelsons


Learnable & Interpretable Model Combination in Dynamical Systems Modeling

by Tobias Thummerer, Lars Mikelsons

First submitted to arxiv on: 12 Jun 2024

Categories

  • Main: Machine Learning (cs.LG)
  • Secondary: None

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The proposed work discusses combining multiple model architectures for dynamical systems modeling, including machine learning and physical simulation models. The authors propose a new class of models that can express mixed algebraic, discrete, and differential equation-based models. They also examine different ways to combine these models from the perspective of system theory and highlight two challenges: algebraic loops and local event functions in discontinuous models. To address these challenges, they introduce a wildcard architecture that can describe arbitrary combinations of models and can be learned through gradient-based optimization.
Low GrooveSquid.com (original content) Low Difficulty Summary
The paper explores how to combine different model architectures for dynamical systems modeling. They propose a new type of model that can mix together algebraic, discrete, and differential equation-based models. The authors also look at different ways to combine these models from the perspective of system theory. Two challenges they identify are algebraic loops and local event functions in discontinuous models. To solve these problems, they introduce a special type of architecture that can describe any combination of models. They show how this architecture can be learned using gradient-based optimization.

Keywords

» Artificial intelligence  » Machine learning  » Optimization