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Summary of Enhancing Symbolic Regression and Universal Physics-informed Neural Networks with Dimensional Analysis, by Lena Podina et al.


Enhancing Symbolic Regression and Universal Physics-Informed Neural Networks with Dimensional Analysis

by Lena Podina, Diba Darooneh, Joshveer Grewal, Mohammad Kohandel

First submitted to arxiv on: 24 Nov 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 new method presented combines Ipsen’s and Buckingham pi methods to enhance symbolic regression for differential equations. The goal is to reduce the number of input variables, simplify the search space, and ensure derived equations are physically meaningful. This is achieved by integrating dimensional analysis with Universal Physics-Informed Neural Networks (UPINNs) and AI Feynman symbolic regression algorithm. The results show that dimensionless data reduces computation time and improves accuracy. Buckingham pi theorem also helps in reducing complexity for algebraic equations.
Low GrooveSquid.com (original content) Low Difficulty Summary
Symbolic regression often struggles with high computational costs and overfitting. To solve this, researchers used dimensional analysis to reduce the number of input variables and simplify the search space. They combined Ipsen’s method with Universal Physics-Informed Neural Networks (UPINNs) to identify hidden terms more effectively. The results show that using dimensionless data makes it easier to find accurate equations, even when there is limited data.

Keywords

» Artificial intelligence  » Overfitting  » Regression