Papers › DeepMoD: Deep learning for Model Discovery in noisy data

DeepMoD: Deep learning for Model Discovery in noisy data

20 Apr 2019arXiv:1904.09406archive 2025-07-28

Gert-Jan Both, Subham Choudhury, Pierre Sens, Remy Kusters

We introduce DeepMoD, a Deep learning based Model Discovery algorithm. DeepMoD discovers the partial differential equation underlying a spatio-temporal data set using sparse regression on a library of possible functions and their derivatives. A neural network approximates the data and constructs the function library, but it also performs the sparse regression. This construction makes it extremely robust to noise, applicable to small data sets, and, contrary to other deep learning methods, does not require a training set. We benchmark our approach on several physical problems such as the Burgers', Korteweg-de Vries and Keller-Segel equations, and find that it requires as few as 𝒪(10²) samples and works at noise levels up to 75%. Motivated by these results, we apply DeepMoD directly on noisy experimental time-series data from a gel electrophoresis experiment and find that it discovers the advection-diffusion equation describing this system.

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