Title of article
Easy definition of new facets in the frame-based language Objlog+
Author/Authors
Faucher، Colette نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
-222
From page
223
To page
0
Abstract
This study develops Bayesian methods for estimating the parameters of a stochastic switching regression model. Markov Chain Monte Carlo methods, data augmentation, and Gibbs sampling are used to facilitate estimation of the posterior means. The main feature of these methods is that the posterior means are estimated by the ergodic averages of samples drawn from conditional distributions, which are relatively simple in form and more feasible to sample from than the complex joint posterior distribution. A simulation study is conducted comparing model estimates obtained using data augmentation, Gibbs sampling, and the maximum likelihood EM algorithm and determining the effects of the accuracy of and bias of the researcherʹs prior distributions on the parameter estimates.
Keywords
Facet reification , Automatic management of facet control structure , Knowledge representation , Frame-based languages , Extensibility
Journal title
DATA & KNOWLEDGE ENGINEERING
Serial Year
2001
Journal title
DATA & KNOWLEDGE ENGINEERING
Record number
6063
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