EvoPINN: Agentic Discovery of Executable Algorithms for Physics-Informed Neural Networks
- URL: http://arxiv.org/abs/2607.26490v1
- Date: Wed, 29 Jul 2026 05:36:28 GMT
- Title: EvoPINN: Agentic Discovery of Executable Algorithms for Physics-Informed Neural Networks
- Abstract summary: Physics-informed neural networks (PINNs) have emerged as a powerful paradigm for solving partial differential equations (PDEs)<n>We propose textbfEvoPINN, an agentic framework that reformulates PINN development into a rigorous, execution-grounded algorithm discovery problem.
- Score: 21.182571644696075
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Physics-informed neural networks (PINNs) have emerged as a powerful paradigm for solving partial differential equations (PDEs), yet their performance heavily relies on the manual, trial-and-error engineering of neural representations, loss formulations, and optimization dynamics. While Large Language Models (LLMs) offer a promising avenue for automated design, unconstrained code generation often yields mathematically invalid or numerically unstable solutions under strict scientific computing constraints. To bridge this gap, we propose \textbf{EvoPINN}, an agentic framework that reformulates PINN development from labor-intensive manual design into a rigorous, execution-grounded algorithm discovery problem. EvoPINN navigates a modular search space by decoupling neural representations from training programs, utilizing an LLM agent to iteratively propose memory-conditioned programmatic modifications. To ensure scientific validity, all candidates undergo strict structural verification and budget-matched PDE evaluation. Extensive experiments across diverse PDE regimes (oscillatory, elliptic, dissipative, and nonlinear transport) demonstrate that EvoPINN discovers PDE-specialized learning algorithms that significantly reduce relative $L_{2}$ error compared to baselines. Crucially, EvoPINN autonomously invented SLRC-PINN, a novel architecture whose performance gains persist under rigorous parameter-matched comparisons, establishing the viability of execution-grounded agents for discovering genuinely new scientific computing mechanisms.
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