Abstract
To automate the discovery of new scientific and engineering principles, artificial intelligence must distill explicit rules from experimental data. This has proven difficult because existing methods typically search through the enormous space of possible functions. Here we introduce deep distilling, a machine learning method that does not perform searches but instead learns from data using symbolic essence neural networks and then losslessly condenses the network parameters into a concise algorithm written in computer code. This distilled code, which can contain loops and nested logic, is equivalent to the neural network but is human-comprehensible and orders-of-magnitude more compact. On arithmetic, vision and optimization tasks, the distilled code is capable of out-of-distribution systematic generalization to solve cases orders-of-magnitude larger and more complex than the training data. The distilled algorithms can sometimes outperform human-designed algorithms, demonstrating that deep distilling is able to discover generalizable principles complementary to human expertise.
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The datasets used in this work are included with the code. Source Data are provided with this paper.
Code availability
The code used to distill ENNs has been deposited at CodeOcean31 and at https://github.com/pauljblazek/deepdistilling.
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Acknowledgements
This work was supported by the UTSW High Risk/High Impact grant.
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P.J.B. and M.M.L. conceptualized the work, wrote the paper, and performed the visualizations and methodology. M.M.L. acquired funding. P.J.B. and K.V. performed investigations and co-wrote the software.
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P.J.B. and M.M.L. are co-authors on international patent applications related to ENNs (PCT/US2021/019470) and to deep distilling (PCT/US2022/040885). K.V. declares no competing interests.
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Nature Computational Science thanks Joseph Bakarji and the other, anonymous, reviewer(s) for their contribution to the peer review of this work. Primary Handling Editor: Ananya Rastogi, in collaboration with the Nature Computational Science team.
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Supplementary Figs. 1–4, discussion and examples of output code generated by the method described.
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Blazek, P.J., Venkatesh, K. & Lin, M.M. Automated discovery of algorithms from data. Nat Comput Sci 4, 110–118 (2024). https://doi.org/10.1038/s43588-024-00593-9
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DOI: https://doi.org/10.1038/s43588-024-00593-9
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