Results 21 to 30 of about 3,163,986 (303)

Sheppard's Corrections for a Discrete Variable [PDF]

open access: yesThe Annals of Mathematical Statistics, 1936
In the Annals of Mathematical Statistics,' J. R. Abernethy gave a derivation of the corrections to eliminate the systematic errors in the moments of a discrete variable due to grouping. It is the purpose of this note to considerably shorten and simplify the derivation of these corrections by an adoption of a device used by R. A.
openaire   +3 more sources

Variable Resolution Discretization in Optimal Control [PDF]

open access: yesMachine Learning, 2002
The problem of state abstraction is of central importance in optimal control, reinforcement learning and Markov decision processes. This paper studies the case of variable resolution state abstraction for continuous time and space, deterministic dynamic control problems in which near-optimal policies are required.
Rémi Munos, Andrew W. Moore 0001
openaire   +3 more sources

Stability in discrete equations with variable delays

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this paper we study the stability of the zero solution of difference equations with variable delays. In particular we consider the scalar delay equation \begin{equation} \Delta x(n)=-a(n)x(n-\tau(n)) \end{equation} and its generalization \begin ...
Ernest Yankson
doaj   +1 more source

Reparameterization trick for discrete variables

open access: yesCoRR, 2016
Low-variance gradient estimation is crucial for learning directed graphical models parameterized by neural networks, where the reparameterization trick is widely used for those with continuous variables. While this technique gives low-variance gradient estimates, it has not been directly applicable to discrete variables, the sampling of which ...
Seiya Tokui, Issei Sato
openaire   +3 more sources

Preservation Properties for Some Discrete Mean Residual Life Ordering [PDF]

open access: yesThe Egyptian Statistical Journal, 2013
The random variable = –, which is called the residual life random variable, has gathered theattention of most researchers in reliability. The properties of mean residual life in continuouscase have been studied by several authors.
M.A. Ibrahim, A.N. Ahmed
doaj   +1 more source

Charmonium Properties Using the Discrete Variable Representation (DVR) Method

open access: yesAdvances in High Energy Physics, 2021
The Schrödinger equation is solved numerically for charmonium using the discrete variable representation (DVR) method. The Hamiltonian matrix is constructed and diagonalized to obtain the eigenvalues and eigenfunctions.
Bhaghyesh A.
doaj   +1 more source

Operating with potentials of discrete variables

open access: yesInternational Journal of Approximate Reasoning, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Manuel Arias 0004   +1 more
openaire   +3 more sources

Asymptotic stability for neural networks with mixed time-delays: The discrete-time case [PDF]

open access: yes, 2009
This is the post print version of the article. The official published version can be obtained from the link - Copyright 2009 Elsevier LtdThis paper is concerned with the stability analysis problem for a new class of discrete-time recurrent neural ...
Liu, Y   +8 more
core   +1 more source

Discrete Random Variables over Domains [PDF]

open access: yesTheoretical Computer Science, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Robust H-infinity sliding mode control for nonlinear stochastic systems with multiple data packet losses [PDF]

open access: yes, 2012
This is the post-print version of this Article. The official published version can be accessed from the link below - Copyright @ 2012 John Wiley & SonsIn this paper, an ∞ sliding mode control (SMC) problem is studied for a class of discrete-time ...
Wang, Z, Ma, L, Bo, Y, Guo, Z
core   +1 more source

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