Showing 1 - 10 of 2,997
We investigate branching properties of the solution of a fragmentation equation for the mass distribution and we properly associate a continuous time càdlàg Markov process on the space S↓ of all fragmentation sizes, introduced by J. Bertoin. A binary fragmentation kernel induces a specific...
Persistent link: https://www.econbiz.de/10011209768
This paper develops an asymptotic expansion technique in momentum space for stochastic filtering. It is shown that Fourier transformation combined with a polynomial-function approximation of the nonlinear terms gives a closed recursive system of ordinary differential equations (ODEs) for the...
Persistent link: https://www.econbiz.de/10010848659
Persistent link: https://www.econbiz.de/10012101110
Persistent link: https://www.econbiz.de/10015133009
Persistent link: https://www.econbiz.de/10013365284
In this paper the authors build on prior literature to develop an adaptive and time-varying metadata-enabled dynamic topic model (mDTM) and apply it to a large Weibo dataset using an online Gibbs sampler for parameter estimation. Their approach simultaneously captures the maximum number of...
Persistent link: https://www.econbiz.de/10012049075
Abstract In this paper, we consider the Bayesian inference of M/M/𝑅 queue with 𝑅 heterogeneous servers with service rates \mu_{1},\mu_{2},\ldots,\mu_{R} , where \mu_{1}\mu_{2}\cdots\mu_{R} . Assuming multivariate gamma prior distribution for service rates and gamma prior distribution for...
Persistent link: https://www.econbiz.de/10014591049
Linear mixed models (LMM) are frequently used to analyze repeated measures data, because they are more flexible to modelling the correlation within-subject, often present in this type of data. The most popular LMM for continuous responses assumes that both the random effects and the...
Persistent link: https://www.econbiz.de/10005492194
This paper presents a Bayesian analysis of the projected normal distribution, which is a flexible and useful distribution for the analysis of directional data. We obtain samples from the posterior distribution using the Gibbs sampler after the introduction of suitably chosen latent variables....
Persistent link: https://www.econbiz.de/10005492203
The factor analysis model has been widely applied to study finance problems. The purpose of this paper is to introduce a Bayesian approach for analysing the factor analysis model. The advantages of the proposed Bayesian approach over the classical maximum likelihood rest on its capability to...
Persistent link: https://www.econbiz.de/10005495735