3 papers
math.NA2026
An adaptive split-combine Gaussian mixture filter for nonlinear and multimodal state estimation
San Kim, Won Chang, Daniel B. Forger +1
Filtering combines model predictions with measurements to estimate the probability density function (PDF) of a system state over time. The PDF often becomes highly asymmetric and e…
stat.ML2026
Rethinking Forward Processes for Score-Based Nonlinear Data Assimilation in High Dimensions
Eunbi Yoon, Won Chang, Donghan Kim +1
Data assimilation is the process of estimating the state of a dynamical system over time by combining model predictions with measurements. This task becomes challenging when the sy…
stat.AP2024
Bayesian Model Calibration and Sensitivity Analysis for Oscillating Biological Experiments
Youngdeok Hwang, Hang J. Kim, Won Chang +2
Understanding the oscillating behaviors that govern organisms' internal biological processes requires interdisciplinary efforts combining both biological and computer experiments,…