It would be super useful if there was a glossary of terms for the course. There are lots of acronyms used such as NDCG and lose track of them.
Thank you for your suggestion, it has been noted!
Generally, the acronyms used in each chapter are explained in that chapter. Therefore it is advised to go through the whole chapter to develop a deeper understanding of how these terms are being used with respect to the problem being discussed in that chapter.