Results 21 to 30 of about 271,753 (311)

Stochastic Variational Method for Viscous Hydrodynamics

open access: yesPhysics, 2022
In this short review, we focus on some of the subjects, related to J. Cleymans’ pioneering contribution of statistical approaches to the particle production process in heavy-ion collisions.
Takeshi Kodama, Tomoi Koide
doaj   +1 more source

Estimates for multiple stochastic integrals and stochastic Hamilton-Jacobi equations [PDF]

open access: yes, 2004
We study stochastic Hamilton-Jacobi-Bellman equations and the corresponding Hamiltonian systems driven by jump-type Lévy processes. The main objective of the present paper is to show existence, uniqueness and a (locally in time) diffeomorphism ...
Kolokoltsov, V. N. (Vasiliĭ Nikitich)   +10 more
core   +1 more source

Stochastic simulation of the economic viability of feedlot steers fed with different proportions of concentrate

open access: yesBioscience Journal, 2017
The economic viability of feedlot zebu bulls, slaughtered at 450 kg after 90 days of feeding with diets consisting of different proportions of concentrate in dry matter (40, 60 or 80%), was estimated using Monte Carlo simulations, with or without the ...
Rodrigo Medeiros da Silva   +6 more
doaj   +1 more source

Stochastic Quasi-Newton Methods for Nonconvex Stochastic Optimization [PDF]

open access: yesSIAM Journal on Optimization, 2017
published in SIAM Journal on ...
Xiao Wang   +3 more
openaire   +3 more sources

An Accelerated Method For Decentralized Distributed Stochastic Optimization Over Time-Varying Graphs

open access: yes, 2022
We consider a distributed stochastic optimization problem that is solved by a decentralized network of agents with only local communication between neighboring agents. The goal of the whole system is to minimize a global objective function given as a sum
Dvurechensky, Pavel   +4 more
core   +1 more source

A reliable numerical analysis for stochastic dengue epidemic model with incubation period of virus

open access: yesAdvances in Difference Equations, 2019
This article represents a numerical analysis for a stochastic dengue epidemic model with incubation period of virus. We discuss the comparison of solutions between the stochastic dengue model and a deterministic dengue model. In this paper, we have shown
Ali Raza   +2 more
doaj   +1 more source

Efficiency of the stochastic approximation method [PDF]

open access: yesYugoslav Journal of Operations Research, 2012
The practical aspect of the stochastic approximation method (SA) is studied. Specifically, we investigated the efficiency depending on the coefficients that generate the step length in optimization algorithm, as well as the efficiency depending on the
Japundžić Miloš
doaj   +1 more source

Penalty methods with stochastic approximation for stochastic nonlinear programming [PDF]

open access: yesMathematics of Computation, 2016
In this paper, we propose a class of penalty methods with stochastic approximation for solving stochastic nonlinear programming problems. We assume that only noisy gradients or function values of the objective function are available via calls to a stochastic first-order or zeroth-order oracle.
Xiao Wang, Shiqian Ma, Ya-Xiang Yuan
openaire   +2 more sources

Hesitant Fuzzy-Stochastic Data Envelopment Analysis (HF-SDEA) Model for Benchmarking

open access: yesJOIV: International Journal on Informatics Visualization, 2021
The Data Envelopment Analysis (DEA) method is a method commonly used in benchmarking. The Dynamic Data Envelopment Analysis (DDEA) method was proposed to improve the DEA method in the benchmarking process.
Dahlan Abdullah   +2 more
doaj   +1 more source

Stochastic Material Point Method for Analysis in Non-Linear Dynamics of Metals

open access: yesMetals, 2019
A stochastic material point method is proposed for stochastic analysis in non-linear dynamics of metals with varying random material properties. The basic random variables are parameters of equation of state and those of constitutive equation.
Weidong Chen   +5 more
doaj   +1 more source

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