نتایج جستجو برای: statistical moments

تعداد نتایج: 403750  

2014

Abstract—In this article the problem of distributional moments estimation is considered. The new approach of moments estimation based on usage of the characteristic function is proposed. By statistical simulation technique author shows that new approach has some robust properties. For calculation of the derivatives of characteristic function there is used numerical differentiation. Obtained res...

Journal: :Mathematics and Computers in Simulation 2009
Maria Cristina C. Cunha Fábio Antonio Dorini

We solve Burgers’ equation with random Riemann initial conditions. The closed solution allows simple expressions for its statistical moments. Using these ideas we design an efficient algorithm to calculate the statistical moments of the solution. Our methodology is an alternative to the Monte Carlo method. The present approach does not demand a random numbers generator as does the Monte Carlo m...

Journal: :Physical biology 2017
Khem Raj Ghusinga Cesar A Vargas-Garcia Andrew Lamperski Abhyudai Singh

In the stochastic description of biochemical reaction systems, the time evolution of statistical moments for species population counts is described by a linear dynamical system. However, except for some ideal cases (such as zero- and first-order reaction kinetics), the moment dynamics is underdetermined as lower-order moments depend upon higher-order moments. Here, we propose a novel method to ...

2014
Ling Yu Jun-Hua Zhu

An integrated method is proposed for structural nonlinear damage detection based on time series analysis and the higher statistical moments of structural responses in this study. It combines the time series analysis, the higher statistical moments of AR model residual errors and the fuzzy c-means (FCM) clustering techniques. A few comprehensive damage indexes are developed in the arithmetic and...

Journal: :IEEE transactions on image processing : a publication of the IEEE Signal Processing Society 1998
Iraklis M. Spiliotis Basil G. Mertzios

This work presents a new approach and an algorithm for binary image representation, which is applied for the fast and efficient computation of moments on binary images. This binary image representation scheme is called image block representation, since it represents the image as a set of nonoverlapping rectangular areas. The main purpose of the image block representation process is to provide a...

2018
Sean Grimes Linge Bai Andrew W.E. McDonald David E. Breen

Inspired by the chemotaxis interaction of living cells, we have developed an agent-based approach for self-organizing shape formation. Since all our simulations begin with a different uniform random configuration and our agents move stochastically, it has been observed that the self-organization process may form two or more stable final configurations. These differing configurations may be char...

Journal: :The Journal of the Acoustical Society of America 2011

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