Results 21 to 30 of about 72,594 (306)

On parameter estimation for stochastic logistic growth laws through the maximum likelihood procedure

open access: yesLietuvos Matematikos Rinkinys, 2004
A three alternative stochastic logistic growth models (exponential, Verhulst, Gompertz) are used for modelling of growth processes. The aim of this paper is to develop stochastic growth curves for all three stochastic growth models.
Petras Rupšys
doaj   +3 more sources

The asymptotic error of chaos expansion approximations for stochastic differential equations

open access: yesModern Stochastics: Theory and Applications, 2019
In this paper we present a numerical scheme for stochastic differential equations based upon the Wiener chaos expansion. The approximation of a square integrable stochastic differential equation is obtained by cutting off the infinite chaos expansion in ...
Tony Huschto   +2 more
doaj   +1 more source

Asynchronous Stochastic Approximations [PDF]

open access: yesSIAM Journal on Control and Optimization, 1998
The asymptotic behavior of a distributed, asynchronous stochastic approximation scheme is analyzed in terms of a limiting nonautonomous differential equation. The relation between the latter and the relative values of suitably rescaled relative frequencies of updates of different components is underscored.
openaire   +3 more sources

Approximations to the Stochastic Burgers Equation [PDF]

open access: yesJournal of Nonlinear Science, 2011
This article is devoted to the numerical study of various finite difference approximations to the stochastic Burgers equation. Of particular interest in the one-dimensional case is the situation where the driving noise is white both in space and in time.
Martin Hairer, Jochen Voss
openaire   +2 more sources

Variational Characterization of Free Energy: Theory and Algorithms

open access: yesEntropy, 2017
The article surveys and extends variational formulations of the thermodynamic free energy and discusses their information-theoretic content from the perspective of mathematical statistics.
Carsten Hartmann   +3 more
doaj   +1 more source

On Consensus-Based Distributed Blind Calibration of Sensor Networks

open access: yesSensors, 2018
This paper deals with recently proposed algorithms for real-time distributed blind macro-calibration of sensor networks based on consensus (synchronization). The algorithms are completely decentralized and do not require a fusion center.
Miloš S. Stanković   +4 more
doaj   +1 more source

Approximations for Stochastic Graph Rewriting [PDF]

open access: yes, 2014
In this note we present a method to compute approximate descriptions of a class of stochastic systems. For the method to apply, the system must be presented as a Markov chain on a state space consisting in graphs or graph-like objects, and jumps must be described by transformations which follow a finite set of local rules.
Vincent Danos   +3 more
openaire   +4 more sources

Implicit Approximation of Photovoltaic Panel Characteristics Using a Stochastic Approach

open access: yesAdvances in Electrical and Computer Engineering, 2012
In this article, an original system is described for an implicit approximation of photovoltaic panel characteristics. Photovoltaic panels (PV panel) are considered stochastic systems.
ZAPLATILEK, K., LEUCHTER, J.
doaj   +1 more source

Model-Free Trajectory Optimisation for Unmanned Aircraft Serving as Data Ferries for Widespread Sensors

open access: yesRemote Sensing, 2012
Given multiple widespread stationary data sources such as ground-based sensors, an unmanned aircraft can fly over the sensors and gather the data via a wireless link. Performance criteria for such a network may incorporate costs such as trajectory length
Ben Pearre, Timothy X. Brown
doaj   +1 more source

On a Stochastic Approximation Method [PDF]

open access: yesThe Annals of Mathematical Statistics, 1954
Asymptotic properties are established for the Robbins-Monro [1] procedure of stochastically solving the equation $M(x) = \alpha$. Two disjoint cases are treated in detail. The first may be called the "bounded" case, in which the assumptions we make are similar to those in the second case of Robbins and Monro. The second may be called the "quasi-linear"
openaire   +3 more sources

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