منابع مشابه
Model Diagnostics for Bayesian Networks
Assessing fit of psychometric models has always been an issue of enormous interest, but there exists no unanimously agreed upon item fit diagnostic for the models. Bayesian networks, frequently used in educational assessments (see, for example, Mislevy, Almond, Yan, & Steinberg, 2001) primarily for learning about students’ knowledge and skills, are no exception. This paper employs the posterior...
متن کاملEvaluation of Bayesian Networks Used for Diagnostics
0-7803-7651-X/03/$17.00 © 2003 IEEE IEEEAC paper #187, Updated October 1, 2002 Abstract—Bayesian networks have been very useful as models for computerized diagnostic assistants, as evidenced by numerous citations in the literature. However, a number of important practical problems in the application of Bayesian networks to diagnostics have still not been properly addressed. One of these is the ...
متن کاملSupply chain diagnostics with dynamic Bayesian networks
This paper proposes a dynamic Bayesian network to represent the cause-and-effect relationships in an industrial supply chain. Based on the Quick Scan, a systematic data analysis and synthesis methodology developed by Naim, Childerhouse, Disney, and Towill (2002). [A supply chain diagnostic methodlogy: Determing the vector of change. Computers and Industrial Engineering, 43, 135–157], a dynamic ...
متن کاملA Probabilistic Model for COPD Diagnosis and Phenotyping Using Bayesian Networks
Introduction: This research was meant to provide a model for COPD diagnosis and to classify the cases into phenotypes; General COPD, Chronic bronchitis, Emphysema, and the Asthmatic COPD using a Bayesian Network (BN). Methods: The model was constructed through developing the Bayesian Network structure and instantiating the parameters for each of the variables. In order to validate the achiev...
متن کاملA Kullback-Leibler Divergence for Bayesian Model Diagnostics.
This paper considers a Kullback-Leibler distance (KLD) which is asymptotically equivalent to the KLD by Goutis and Robert [1] when the reference model (in comparison to a competing fitted model) is correctly specified and that certain regularity conditions hold true (ref. Akaike [2]). We derive the asymptotic property of this Goutis-Robert-Akaike KLD under certain regularity conditions. We also...
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ژورنال
عنوان ژورنال: ETS Research Report Series
سال: 2004
ISSN: 2330-8516
DOI: 10.1002/j.2333-8504.2004.tb01944.x