Results 21 to 30 of about 876,447 (311)

Population control bias and importance sampling in full configuration interaction quantum Monte Carlo [PDF]

open access: yes, 2021
Population control is an essential component of any projector Monte Carlo algorithm. This control mechanism usually introduces a bias in the sampled quantities that is inversely proportional to the population size.
K. Ghanem, Niklas Liebermann, A. Alavi
semanticscholar   +1 more source

Simulated redistricting plans for the analysis and evaluation of redistricting in the United States

open access: yesScientific Data, 2022
Measurement(s) redistricting, partisanship Technology Type(s) sequential Monte Carlo algorithm Factor Type(s) population deviation • compactness • county splits • racial composition • municipality splits Sample Characteristic - Organism Congressional ...
Cory McCartan   +7 more
doaj   +1 more source

Coupling the GUARDYAN code to subchanflow

open access: yesEPJ Nuclear Sciences & Technologies, 2023
GUARDYAN is a GPU-based dynamic Monte Carlo code developed at the Budapest University of Technology and Economics, Hungary. Dynamic Monte Carlo computes the neutron population evolution by calculating the direct time dependence of the neutron histories ...
Legrady David   +3 more
doaj   +1 more source

A population Monte Carlo scheme with transformed weights and its application to stochastic kinetic models [PDF]

open access: yesStatistics and computing, 2012
This paper addresses the Monte Carlo approximation of posterior probability distributions. In particular, we consider the population Monte Carlo (PMC) technique, which is based on an iterative importance sampling (IS) approach.
E. Koblents, J. Míguez
semanticscholar   +1 more source

Modeling Dense Star Clusters in the Milky Way and beyond with the Cluster Monte Carlo Code [PDF]

open access: yesAstrophysical Journal Supplement Series, 2021
We describe the public release of the Cluster Monte Carlo (CMC) code, a parallel, star-by-star N-body code for modeling dense star clusters. CMC treats collisional stellar dynamics using Hénon’s method, where the cumulative effect of many two-body ...
C. Rodriguez   +11 more
semanticscholar   +1 more source

Neutron clustering in Monte Carlo iterated-source calculations

open access: yesNuclear Engineering and Technology, 2017
Monte Carlo neutron transport codes generally use the method of successive generations to converge the fission source distribution to—and then maintain it at—the fundamental mode.
Thomas M. Sutton, Anudha Mittal
doaj   +1 more source

Langevin-based Strategy for Efficient Proposal Adaptation in Population Monte Carlo

open access: yesIEEE International Conference on Acoustics, Speech, and Signal Processing, 2019
Population Monte Carlo (PMC) algorithms are a family of adaptive importance sampling (AIS) methods for approximating integrals in Bayesian inference.
V. Elvira, É. Chouzenoux
semanticscholar   +1 more source

Population-Based Reversible Jump Markov Chain Monte Carlo [PDF]

open access: yesBiometrika, 2007
In this paper we present an extension of population-based Markov chain Monte Carlo (MCMC) to the trans-dimensional case. One of the main challenges in MCMC-based inference is that of simulating from high and trans-dimensional target measures. In such cases, MCMC methods may not adequately traverse the support of the target; the simulation results will ...
Ajay Jasra   +2 more
openaire   +4 more sources

Pharmacokinetics and Monte Carlo Simulation of Meropenem in Critically Ill Adult Patients Receiving Extracorporeal Membrane Oxygenation

open access: yesFrontiers in Pharmacology, 2021
Objectives: There have been few clinical studies of ECMO-related alterations of the PK of meropenem and conflicting results were reported. This study investigated the pharmacokinetics (PK) of meropenem in critically ill adult patients receiving ...
Jae Ha Lee   +14 more
doaj   +1 more source

Comprehensive health risk analysis of heavy metal pollution using water quality indices and Monte Carlo simulation in R software

open access: yesScientific Reports, 2023
Rapid urbanization, population growth, agricultural practices, and industrial activities have led to widespread groundwater contamination. This study evaluated heavy metal contamination in residential drinking water in Shiraz, Iran (2021).
Ahmad Badeenezhad   +8 more
semanticscholar   +1 more source

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