Edit: Bayes free energy vs. generalization loss

prml_errata.tex

@@ -1994,12 +1994,14 @@ \subsubsection*{#1}
 Bayesian model comparison to work;
 see the discussion around (3.73).
 
-Moreover, one should also be aware of a subtlety here, that is,
-(i)~the \emph{generalization error}, which can be measured by cross-validation, and
-(ii)~the \emph{model evidence} (or the \emph{marginal likelihood})
-are closely related but different criteria,
-although, in practice, a higher model evidence often tends to imply a lower generalization error
-and vice versa.
+\parhead{Bayes free energy vs.\ generalization loss}
+Moreover, one should also be aware of a subtlety that
+(i)~the \emph{marginal likelihood},
+which is used in the Bayesian model comparison framework (see Section~3.4), and
+(ii)~the \emph{generalization error}, which can be estimated by cross-validation (Section~3.2),
+are closely related but different criteria for assessing model complexity,
+although, in practice, a higher marginal likelihood often tends to imply
+a lower generalization error and vice versa.
 For more (advanced) discussions, see \citet{Watanabe:WAIC,Watanabe:WBIC}.
 
 \erratum{Page~156}