Search Results for author: Md Nasim

Found 4 papers, 1 papers with code

Vertical Symbolic Regression via Deep Policy Gradient

1 code implementation1 Feb 2024 Nan Jiang, Md Nasim, Yexiang Xue

We propose Vertical Symbolic Regression using Deep Policy Gradient (VSR-DPG) and demonstrate that VSR-DPG can recover ground-truth equations involving multiple input variables, significantly beyond both deep reinforcement learning-based approaches and previous VSR variants.

Decision Making regression +1

Vertical Symbolic Regression

no code implementations19 Dec 2023 Nan Jiang, Md Nasim, Yexiang Xue

The first few steps in vertical discovery are significantly cheaper than the horizontal path, as their search is in reduced hypothesis spaces involving a small set of variables.

regression Symbolic Regression

Efficient Learning of PDEs via Taylor Expansion and Sparse Decomposition into Value and Fourier Domains

no code implementations13 Sep 2023 Md Nasim, Yexiang Xue

This decomposition enables efficient learning when the source of the updates consists of gradually changing terms across large areas (sparse in the frequency domain) in addition to a few rapid updates concentrated in a small set of "interfacial" regions (sparse in the value domain).

End-to-end Phase Field Model Discovery Combining Experimentation, Crowdsourcing, Simulation and Learning

no code implementations13 Sep 2023 Md Nasim, Anter El-Azab, Xinghang Zhang, Yexiang Xue

Phase-Field-Lab combines (i) a streamlined annotation tool which reduces the annotation time (by ~50-75%), while increasing annotation accuracy compared to baseline; (ii) an end-to-end neural model which automatically learns phase field models from data by embedding phase field simulation and existing domain knowledge into learning; and (iii) novel interfaces and visualizations to integrate our platform into the scientific discovery cycle of domain scientists.

Model Discovery

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