Another very minor (but briefly confusing) nit: The notation in the `Example' section is inconsistent between probabilities and log probabilities. It introduces Hprior(z) (etc.) as a probability, but then treats it as a log probability in the line starting with 'We find the z∗'.

Another very minor (but briefly confusing) nit: The notation in the `Example' section is inconsistent between probabilities and log probabilities. It introduces Hprior(z) (etc.) as a

probability, but then treats it as a log probability in the line starting with 'We find the z∗'.