Variational free energy and the Laplace approximation.
Karl J. FristonJérémie MattoutNelson J. Trujillo-BarretoJohn AshburnerWilliam D. PennyPublished in: NeuroImage (2007)
Keyphrases
- free energy
- expectation propagation
- belief propagation
- variational bayes
- upper bound
- fixed point
- competitive learning
- loopy belief propagation
- approximate inference
- posterior distribution
- generalized belief propagation
- bethe free energy
- graphical models
- least squares
- probabilistic model
- message passing
- maximum a posteriori
- parameter estimation