Discovering Multiscale Deep Formulas in Complex Systems via Neural-Guided Lambda Calculus
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Computer Science > Machine Learning
Title:Discovering Multiscale Deep Formulas in Complex Systems via Neural-Guided Lambda Calculus
Abstract:A fundamental problem in science is identifying underlying patterns of complex systems in the form of concise mathematical formulas. Current Artificial Intelligence (AI)-based methods have shown strong performance in single-scale systems, yet remain limited in identifying scale-specific formulas in multiscale complex systems. We present Deflex, an end-to-end AI method to automatically extract multiscale formulas with potentially different forms, including invariants and distributions, from complex systems. Deflex consists of two subsystems named Deflexformer and Deflexpressor. Deflexpressor is a lambda-calculus symbolic regression model for higher-order formulas. Deflexformer is a decomposable deep energy model for learning unified representations across scales. Deflexpressor generates synthetic data to pre-train Deflexformer, which then guides formula discovery by decoupling multiscale latent relationships. Across six representative complex systems with diverse behaviors, Deflex achieves up to 7-fold higher efficiency than the state-of-the-art methods while enabling automated multiscale discovery. Our work could be a useful tool for scientific discovery across disciplines.
| Comments: | 35 pages, 5 figures; Supplementary Information available as an ancillary file (79 pages) |
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2606.07426 [cs.LG] |
| (or arXiv:2606.07426v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2606.07426
arXiv-issued DOI via DataCite (pending registration)
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