Results 41 to 50 of about 2,849 (140)
Kinetic energy choice in Hamiltonian/hybrid Monte Carlo
, 2018 We consider how different choices of kinetic energy in Hamiltonian Monte Carlo affect algorithm performance. To this end, we introduce two quantities which can be easily evaluated, the composite gradient and the implicit noise. Results are established on
Faulkner, Michael F. +2 more
core +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.Abstract Seismic subsurface characterization involves interpreting seismic records to delineate geological features and estimate the physical properties of subsurface rocks (such as lithofacies, porosity, and fluid saturation). As an effective remote sensing technology to characterize the large‐scale spatial distribution of subsurface properties ...
Minghui Xu +3 more
wiley +1 more source
Advanced Materials Interfaces, Volume 12, Issue 22, November 22, 2025.Friction force microscopy using diamond tips on epitaxial graphene supported by SiC(0001) shows a sharp friction increase. Silicon tips show similar behavior but at lower threshold forces. Atomistic simulations reveal three different friction regimes as normal pressure rises: graphene‐tip interfacial slip, graphene‐tip bonding, and a reversible ...
Mohammad Zarshenas +8 more
wiley +1 more source
Statistical disaggregation—A Monte Carlo approach for imputation under constraints
Scandinavian Journal of Statistics, Volume 52, Issue 3, Page 1376-1421, September 2025.Abstract Equality‐constrained models naturally arise in problems in which the measurements are taken at different levels of resolution. The challenge in this setting is that the models usually induce a joint distribution which is intractable. Resorting to instead sampling from the joint distribution by means of a Monte Carlo approach is also ...
Shenggang Hu +5 more
wiley +1 more source
A Comparison of Bead‐Spring and Site‐Binding Models for Weak Polyelectrolytes
Macromolecular Theory and Simulations, Volume 34, Issue 4, July 2025.This study compares a site‐binding model with an implicit salt solution treatment to an explicit bead‐spring model to obtain titration curves of small weak polyelectrolytes. The implicit model accurately predicts ionization profiles in weak coupling (small Bjerrum lengths) but overestimates ionization correlations among acid groups in strong coupling ...
Loris Burth, David Beyer, Christian Holm
wiley +1 more source
An Efficient Bayesian Inference Framework for Coalescent-Based Nonparametric Phylodynamics
, 2014 Phylodynamics focuses on the problem of reconstructing past population size dynamics from current genetic samples taken from the population of interest.
Karcher, Michael +4 more
core +2 more sources
Improving the Convergence of Markov Chains via Permutations and Projections
Random Structures &Algorithms, Volume 66, Issue 4, July 2025.ABSTRACT This paper aims at improving the convergence to equilibrium of finite ergodic Markov chains via permutations and projections. First, we prove that a specific mixture of permuted Markov chains arises naturally as a projection under the KL divergence or the squared‐Frobenius norm.
Michael C. H. Choi +2 more
wiley +1 more source
Journal of Money, Credit and Banking, Volume 57, Issue 2-3, Page 515-547, March-April 2025.Abstract We analyze differences in consumption and wealth in an estimated New Keynesian model with rational and boundedly rational households. Shocks are shown to cause consumption and wealth heterogeneity due to the “rationality bias” of boundedly rational households. This bias can be decomposed into three components, which, for certain specifications
TIM HAGENHOFF +2 more
wiley +1 more source
Parallel Excluded Volume Tempering for Polymer Melts
, 2000 We have developed a technique to accelerate the acquisition of effectively uncorrelated configurations for off-lattice models of dense polymer melts which makes use of both parallel tempering and large scale Monte Carlo moves.
A. D. Sokal +48 more
core +2 more sources
Backpropagation-Free Metropolis-Adjusted Langevin Algorithm
19 Pages, 8 ...
Cobb, Adam D., Jha, Susmit
openaire +2 more sources