27.2 Model Selection
https://en.wikipedia.org/wiki/Model_selection
Minimum message length https://en.wikipedia.org/wiki/Minimum_message_length
Minimum description length https://en.wikipedia.org/wiki/Minimum_description_length
27.2.1 Information Criteria
27.2.1.7 Watanabe–Akaike information criterion (WAIC)
https://en.wikipedia.org/wiki/Hannan%E2%80%93Quinn_information_criterion