What Are Some Good Applications of Machine Learning and Big Data in Crypto Exchange?

Apologies for the noob question, basically it is about ideas for some projects that fall at the intersection of crypto trading and machine learning with a focus on software engineering aspect of it.

What are some interesting business problems of a crypto exchange that are often solved by using machine learning and big data applications? Also, how else a crypto exchange can basically leverage ML/data capabilities to monetise?

Some ideas, or keywords that I can look up, or any reference, link for me to read up in this domain will be much appreciated.