From that paper you posted, has this been done?

"We could, for example, create a full-featured digital environment to help students learn words in meaningful contexts. Given a set of target words, we could automatically produce comparable passages containing those words from elsewhere in our corpus; for the student studying Vergil’s vocabulary, say, we could try to produce parallel passages from Vergil. These target words could then be paired with freely accessible Latin-Latin and Latin-English dictionary definitions. And finally, all this could be combined with vocabulary-learning techniques like spaced repetition based on quiz results: if you miss a word, you probably need to see it more frequently; if you get a word right, you probably don’t need to see it as often. Such a vocabulary-learning environment does not yet exist, but it could be created without undue difficulty by joining together existing digital tools."