50 citations · 268 across the 23 of their papers we have counts for
5 papers · 1 filter
A splitting method to reduce MCMC variance
Robert J. Webber, David Aristoff, Gideon Simpson
We explore whether splitting and killing methods can improve the accuracy of Markov chain Monte Carlo (MCMC) estimates of rare event probabilities, and we make three contributions.…
Ensemble sampler for infinite-dimensional inverse problems
Jeremie Coullon, Robert J Webber
We introduce a new Markov chain Monte Carlo (MCMC) sampler for infinite-dimensional inverse problems. Our new sampler is based on the affine invariant ensemble sampler, which uses…
Integrated VAC: A robust strategy for identifying eigenfunctions of dynamical operators
Chatipat Lorpaiboon, Erik Henning Thiede, Robert J. Webber +2
One approach to analyzing the dynamics of a physical system is to search for long-lived patterns in its motions. This approach has been particularly successful for molecular dynami…
Error bounds for dynamical spectral estimation
Robert J. Webber, Erik H. Thiede, Douglas Dow +2
Dynamical spectral estimation is a well-established numerical approach for estimating eigenvalues and eigenfunctions of the Markov transition operator from trajectory data. Althoug…
Improved Fast Randomized Iteration Approach to Full Configuration Interaction
Samuel M. Greene, Robert J. Webber, Jonathan Weare +1
We present three modifications to our recently introduced fast randomized iteration method for full configuration interaction (FCI-FRI) and investigate their effects on the method'…