Author

David M. Bortz

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Preprint Sep 2026

From Individual Trajectories to Population Densities: Weak-Form Inference of Heterogeneous Growth Laws

Single-cell time-lapse microscopy now provides high-resolution size trajectories for thousands of individual cells, yet principled methods for simultaneously learning the functional form of growth laws and the distribution of cell-to-cell physiological variability remain limited. We present a data-driven framework base...

Rainey Lyons, Vanja Dukic, David M. Bortz · 0 citations

#machine learning Preprint Sep 2026

Tensor-Train Weak SINDy: Identifying High-Dimensional Nonlinear Dynamics

In recent years, weak-form methods have made significant advances in data-driven discovery of dynamical systems. However, in high-dimensional settings, current techniques can prove expensive in both computation and memory. In this work, we introduce TT-WSINDy, which combines techniques of the Multidimensional Approxima...

W. Houser, Vanja Dukic, David M. Bortz · 0 citations