Results 31 to 40 of about 14,949,583 (325)

A composite iterative procedure with fast convergence rate for the progressive-iteration approximation of curves

open access: yesJournal of Computational and Applied Mathematics, 2019
The progressive iterative approximation (PIA) is an iterative method for solving the linear system of equations corresponding to the interpolation problem.
A. Ebrahimi, G. B. Loghmani
semanticscholar   +1 more source

Convergence Rates for Projective Splitting [PDF]

open access: yesSIAM Journal on Optimization, 2019
This version adds references to the extragradient ...
Johnstone, Patrick R.   +1 more
openaire   +2 more sources

Convergence Rate Analysis [PDF]

open access: yes, 2009
After showing the convergence of the two numerical methods for Frobenius-Perron operators in the previous chapter, we further investigate the convergence rate problem for them. Keller’s stochastic stability result for a class of Markov operators will be studied first, which leads to his first proof of the L1-norm convergence rate O(ln n/n) for Ulam’s ...
Jiu Ding, Aihui Zhou
openaire   +1 more source

Markov decision processes approximation with coupled dynamics via Markov deterministic control systems

open access: yesOpen Mathematics, 2023
This article presents an approximation of discrete Markov decision processes with small noise on Borel spaces with an infinite horizon and an expected total discounted cost by the corresponding deterministic Markov process.
Portillo-Ramírez Gustavo   +3 more
doaj   +1 more source

Convergence Rate and Locality of Improved Overlap Fermions [PDF]

open access: yes, 2002
We construct new Ginsparg-Wilson fermions for QCD by inserting an approximately chiral Dirac operator - which involves ingredients of a perfect action - into the overlap formula.
Albanese   +71 more
core   +2 more sources

Convergence rate and stability of the truncated Euler-Maruyama method for stochastic differential equations

open access: yesJournal of Computational and Applied Mathematics, 2018
Recently, Mao (2015) developed a new explicit method, called the truncated Euler–Maruyama (EM) method, for the nonlinear SDE and established the strong convergence theory under the local Lipschitz condition plus the Khasminskii-type condition.
Liangjian Hu, Xiaoyue Li, X. Mao
semanticscholar   +1 more source

Rate of Convergence for Cardy’s Formula [PDF]

open access: yesCommunications in Mathematical Physics, 2014
We show that crossing probabilities in 2D critical site percolation on the triangular lattice in a piecewise analytic Jordan domain converge with power law rate in the mesh size to their limit given by the Cardy-Smirnov formula. We use this result to obtain new upper and lower bounds of exp(O(sqrt(log log R))) R^(-1/3) for the probability that the ...
Nachmias, Asaf   +2 more
openaire   +3 more sources

A Novel Stochastic Stratified Average Gradient Method: Convergence Rate and Its Complexity [PDF]

open access: yesIEEE International Joint Conference on Neural Network, 2017
SGD (Stochastic Gradient Descent) is a popular algorithm for large scale optimization problems due to its low iterative cost. However, SGD can not achieve linear convergence rate as FGD (Full Gradient Descent) because of the inherent gradient variance ...
Aixiang Chen   +4 more
semanticscholar   +1 more source

On convergence rate of the randomized Kaczmarz method

open access: yesLinear Algebra and its Applications, 2018
For consistent system of linear equations with the coefficient matrix being flat, we conduct an exact closed-form formula for the mean squared error of the iterate generated by the randomized Kaczmarz method, which completes the existing closed-form ...
Z. Bai, Wen-Ting Wu
semanticscholar   +1 more source

On the Nonergodic Convergence Rate of an Inexact Augmented Lagrangian Framework for Composite Convex Programming [PDF]

open access: yesMathematics of Operations Research, 2016
In this paper, we consider the linearly constrained composite convex optimization problem, whose objective is a sum of a smooth function and a possibly nonsmooth function. We propose an inexact augmented Lagrangian (IAL) framework for solving the problem.
Ya-Feng Liu, Xin Liu, Shiqian Ma
semanticscholar   +1 more source

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