DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Kernel learning backward SDE filter for data assimilation

Journal Article · · Journal of Computational Physics
 [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); (850) 644-2202
  2. Florida State Univ., Tallahassee, FL (United States)

In this paper, we develop a kernel learning backward SDE filter method to estimate the state of a stochastic dynamical system based on its partial noisy observations. A system of forward backward stochastic differential equations is used to propagate the state of the target dynamical model, and Bayesian inference is applied to incorporate the observational information. Further, to characterize the dynamical model in the entire state space, we introduce a kernel learning method to learn a continuous global approximation for the conditional probability density function of the target state by using discrete approximated density values as training data. Numerical experiments demonstrate that the kernel learning backward SDE is highly effective.

Research Organization:
Florida State Univ., Tallahassee, FL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC05-00OR22725; SC0022297
OSTI ID:
1865130
Journal Information:
Journal of Computational Physics, Journal Name: Journal of Computational Physics Vol. 455; ISSN 0021-9991
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (27)

Nonlinear data assimilation in geosciences: an extremely efficient particle filter journal October 2010
On the optimal filtering of diffusion processes journal January 1969
Solving forward-backward stochastic differential equations explicitly ? a four step scheme journal September 1994
Backward doubly stochastic differential equations and systems of quasilinear SPDEs journal June 1994
An Approximation for the Zakai Equation journal January 2002
Probing potential energy landscapes via electron-beam-induced single atom dynamics journal January 2021
Improved distributed particle filters for tracking in a wireless sensor network journal January 2018
A random map implementation of implicit filters journal February 2012
Fire up the atom forge journal November 2016
Implicit sampling for particle filters journal September 2009
Filtering via Simulation: Auxiliary Particle Filters journal June 1999
Nonlinear stability and ergodicity of ensemble based Kalman filters journal January 2016
Unscented Filtering and Nonlinear Estimation journal March 2004
Backward Stochastic Differential Equations in Finance journal January 1997
Particle Markov chain Monte Carlo methods: Particle Markov Chain Monte Carlo Methods journal June 2010
New Results in Linear Filtering and Prediction Theory journal March 1961
Discretization and Simulation of the Zakai Equation journal January 2006
A New Kind of Accurate Numerical Method for Backward Stochastic Differential Equations journal January 2006
A Hybrid Sparse-Grid Approach for Nonlinear Filtering Problems Based on Adaptive-Domain of the Zakai Equation Approximations journal January 2014
A First Order Scheme for Backward Doubly Stochastic Differential Equations journal January 2016
Adaptive Meshfree Backward SDE Filter journal January 2017
Multilevel Particle Filters journal January 2017
Obstacles to High-Dimensional Particle Filtering journal December 2008
Kernel methods in machine learning journal June 2008
A Stochastic Approximation Method journal September 1951
A Backward Doubly Stochastic Differential Equation Approach for Nonlinear Filtering Problems journal January 2018
Forward backward doubly stochastic differential equations and the optimal filtering of diffusion processes journal January 2020