Results 41 to 50 of about 100,624 (168)

Combined Deterministic and Stochastic System Identification and Realization: DSR - A Subspace Approach Based on Observations [PDF]

open access: yesModeling, Identification and Control, 1996
A numerically stable and general algorithm for identification and realization of a complete dynamic linear state space model, including the system order, for combined deterministic and stochastic systems from time series is presented.
David Di Ruscio
doaj   +1 more source

Finite-Time Stability and Stabilization of Itô-Type Stochastic Singular Systems

open access: yesAbstract and Applied Analysis, 2014
This paper is concerned with the finite-time stability and stabilization problems for linear Itô stochastic singular systems. The condition of existence and uniqueness of solution to such class of systems are first given.
Zhiguo Yan, Weihai Zhang
doaj   +1 more source

Existence of Solutions and Relative Controllability of a Stochastic System with Nonpermutable Matrix Coefficients

open access: yesFractal and Fractional, 2022
In this study, time-delayed stochastic dynamical systems of linear and nonlinear equations are discussed. The existence and uniqueness of the stochastic semilinear time-delay system in finite dimensional space is investigated.
Kinda Abuasbeh   +2 more
doaj   +1 more source

Damped Newton Stochastic Gradient Descent Method for Neural Networks Training

open access: yesMathematics, 2021
First-order methods such as stochastic gradient descent (SGD) have recently become popular optimization methods to train deep neural networks (DNNs) for good generalization; however, they need a long training time.
Jingcheng Zhou   +3 more
doaj   +1 more source

Effects of stochastic tow waviness on stiffness and strength of plain-weave ceramic matrix composites

open access: yesAdvances in Mechanical Engineering, 2017
This article presents the development of a finite element model, which considers stochastic tow waviness using a Markov Chain algorithm and non-linear material properties using Binary Model, to predict the stress–strain and fracture behaviour of plain ...
Mingming Chen   +3 more
doaj   +1 more source

Control Optimization of Stochastic Systems Based on Adaptive Correction CKF Algorithm

open access: yesInternational Journal of Aerospace Engineering, 2020
Standard cubature Kalman filter (CKF) algorithm has some disadvantages in stochastic system control, such as low control accuracy and poor robustness.
FengJun Hu, Qian Zhang, Gang Wu
doaj   +1 more source

A modified algorithm of 'forward-backward' solving the identification of automata Markov models

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
The paper is devoted to solving the problem of identifying discrete stochastic processes generated on the basis of automata Markov models. This problem is relevant because of the need to increase the efficiency of automata Markov models recognition.
A.R. Nurutdinova
doaj  

Combined Matrix of a Tridiagonal Toeplitz Matrix

open access: yesAxioms
In this work, combined matrices of tridiagonal Toeplitz matrices are studied. The combined matrix is known as the Relative Gain Array in control theory.
Begoña Cantó   +2 more
doaj   +1 more source

Distributed stochastic gradient descent for link prediction in signed social networks

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
This paper considers the link prediction problem defined over a signed social network, where the relationship between any two network users can be either positive (friends) or negative (foes).
Han Zhang, Gang Wu, Qing Ling
doaj   +1 more source

СREATION OF CORRELATION FUNCTIONS OF LINEAR CONTINUOUS SYSTEMS BASED ON THEIR FUNDAMENTAL MATRICES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
The paper presents a method of creating correlation matrices and functions of the state vectors and outputs of the linear continuous systems functioning under the conditions of stochastic stationary, in a broad sense, effects.
N. A. Vunder   +3 more
doaj   +1 more source

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