Does a glossary make sense in a computer science masters' thesis
I'd encourage you to include a glossary.
I expect your work to use a mixed vocabulary from different fields of science, e.g. computer science, signal processing, or even linguistics. Your paper might be read by people who are not as familiar with all these fields as you are. And some of the terms might not have a common, generally-accepted definition. Or they might gain a different meaning over time (e.g. &quot;AI&quot; now has a rather different meaning today than it had in its early years).
So, defining and explaining the vocabulary that you use seems quite necessary to me, to make your paper accessible to an audience from slightly different fields of research, and understandable for a longer period in time.
As a (maybe old-fashioned?) reader, I'd prefer to have these definitions in one place, not forcing the reader to search through all occurrences of the word just to find its meaning.