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Fitting an item response theory model with random item effects across groups by a variational approximation method.
Frank Rijmen
Minjeong Jeon
Published in:
Ann. Oper. Res. (2013)
Keyphrases
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statistical model
item response theory
probabilistic model
prior information
em algorithm
similarity measure
prior knowledge
parameter estimation
gaussian distribution
support vector
energy function
variational approximation
cross entropy
gaussian mixture
bayesian inference
machine learning
learning algorithm