I am looking for an NLP field analogous to face verification in Computer Vision, where two images of human faces are compared, and the class label describes whether the images are of the same person. I'd like to read literature about comparing two documents, for example news articles, and determining if they describe the same topic, or in the case of news articles, event.
This is similar to information retrieval in that I want to compare the similarity or relevance of one document with respect to the other, but the problem statement is slightly different in that this is a binary classification rather than a ranking task.
Is this an established field in NLP? And if so what is terms are usually used to describe this task?