Article history: Received 12 May 2009 Available online 6 October 2009 Submitted by B.S. Thomson

The usual mean change-point detecting method based on normal linear regression is not robust to heavy-tailed data with potential outlying points. We propose a estimation procedure quantile model asymmetric Laplace error distribution and develop non-iterative sampling algorithm from Bayesian perspective. can generate independently identically distributed samples approximately the posterior of po...

Background: The rapid development of telecommunication technology has prompted the creation various messenger applications. competition among social messengers to gain market share is becoming tighter. Objective: This study aims capture user preferences for platforms and inform software companies improve their products based on needs. Methods: research uses quantitative methods, i.e., categoric...

This paper studies a Laplace operator on semi-discrete surfaces. A semidiscrete surface is represented by a mapping into three-dimensional Euclidean space possessing one discrete and one continuous variable. It can be seen as a limit case of a quadrilateral mesh, or as a semi-discretization of a smooth surface. Laplace operators on both smooth and discrete surfaces have been an object of intere...

in this work, we conduct a comparative study among the combine laplace transform and modied adomian decomposition method (lmadm) and two traditional methods for an analytic and approximate treatment of special type of nonlinear volterra integro-differential equations of the second kind. the nonlinear part of integro-differential is approximated by adomian polynomials, and the equation is red...