Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27378822
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27378822
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Expert+Syst+Appl
2016 ; 56
(ä): 197-208
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Integrating Expert Knowledge with Data in Bayesian Networks: Preserving
Data-Driven Expectations when the Expert Variables Remain Unobserved
#MMPMID27378822
Constantinou AC
; Fenton N
; Neil M
Expert Syst Appl
2016[Sep]; 56
(ä): 197-208
PMID27378822
show ga
When developing a causal probabilistic model, i.e. a Bayesian network (BN), it is
common to incorporate expert knowledge of factors that are important for decision
analysis but where historical data are unavailable or difficult to obtain. This
paper focuses on the problem whereby the distribution of some continuous variable
in a BN is known from data, but where we wish to explicitly model the impact of
some additional expert variable (for which there is expert judgment but no data).
Because the statistical outcomes are already influenced by the causes an expert
might identify as variables missing from the dataset, the incentive here is to
add the expert factor to the model in such a way that the distribution of the
data variable is preserved when the expert factor remains unobserved. We provide
a method for eliciting expert judgment that ensures the expected values of a data
variable are preserved under all the known conditions. We show that it is
generally neither possible, nor realistic, to preserve the variance of the data
variable, but we provide a method towards determining the accuracy of expertise
in terms of the extent to which the variability of the revised empirical
distribution is minimised. We also describe how to incorporate the assessment of
extremely rare or previously unobserved events.