i think the term is more prominent on the NLP side, via information retrieval (IR) and clustering. i first saw it in IR, and you'd see it in stanford's CS 124

i think the term is more prominent on the NLP side, via information retrieval (IR) and clustering. i first saw it in IR, and you'd see it in stanford's CS 124 or CS 224N, for example. if the parent is talking about people who are working on a system that has text-understanding component, i can understand their surprise.