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. 2009 May 27;25(12):i374–i1382. doi: 10.1093/bioinformatics/btp210

Fig. 2.

Fig. 2.

Bayesian network representation of a GP regression model. The model relates observed independent input/output pairs {xn, tn}n=1N. The thick lines couple the latent function value {fn}, illustrating the smoothness assumptions introduced by the GP prior. The parameters θK and θL denote hyperparameters of the kernel and likelihood, respectively.