Comparison of Single- and Multi- Objective Optimization Quality for Evolutionary Equation Discovery

Mikhail Maslyaev, Alexander Hvatov
6/29/2023
cs.LGcs.NE

Official code: ITMO-NSS-team/EPDE_GECCO_experiments (3 stars, last commit 2023-04-24).

Abstract

Evolutionary differential equation discovery proved to be a tool to obtain equations with less a priori assumptions than conventional approaches, such as sparse symbolic regression over the complete possible terms library. The equation discovery field contains two independent directions. The first one is purely mathematical and concerns differentiation, the object of optimization and its relation to the functional spaces and others. The second one is dedicated purely to the optimizational problem statement. Both topics are worth investigating to improve the algorithm's ability to handle experimental data a more artificial intelligence way, without significant pre-processing and a priori knowledge of their nature. In the paper, we consider the prevalence of either single-objective optimization, which considers only the discrepancy between selected terms in the equation, or multi-objective optimization, which additionally takes into account the complexity of the obtained equation. The proposed comparison approach is shown on classical model examples -- Burgers equation, wave equation, and Korteweg - de Vries equation.

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Code Implementations(1)

Repository for storage of experiments with EPDE for GECCO-2023 paper "Comparison of Single- and Multi- Objective Optimization Quality for Evolutionary Equation Discover" in form of data and scripts.

30PythonApr 20, 20233 years ago

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Cite this paper

@article{maslyaev2023comparison,
  title  = {Comparison of Single- and Multi- Objective Optimization Quality for Evolutionary Equation Discovery},
  author = {Mikhail Maslyaev and Alexander Hvatov},
  year   = {2023},
  eprint = {2306.17038},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2306.17038v1}
}

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