3 papers
stat.CO2025
Sampling parameters of ordinary differential equations with Langevin dynamics that satisfy constraints
Chris Chi, Jonathan Weare, Aaron R. Dinner
Fitting models to data to obtain distributions of consistent parameter values is important for uncertainty quantification, model comparison, and prediction. Standard Markov chain M…
nlin.CD2025
Characterizing nonlinear dynamics by contrastive cartography
Nicolas Romeo, Chris Chi, Aaron R. Dinner +1
The qualitative study of dynamical systems using bifurcation theory is key to understanding systems from biological clocks and neurons to physical phase transitions. Data generated…
cs.LG2025
Mitigating mode collapse in normalizing flows by annealing with an adaptive schedule: Application to parameter estimation
Yihang Wang, Chris Chi, Aaron R. Dinner
Normalizing flows (NFs) provide uncorrelated samples from complex distributions, making them an appealing tool for parameter estimation. However, the practical utility of NFs remai…