Duolingo’s AI drives its English proficiency tests
April 30, 2020
Language learning startup Duolingo leverages AI and machine learning to create and score English proficiency tests automatically, reveals a paper published in the journal Transactions of the Association for Computational Linguistics. In it, researchers peel back the curtains on the family of algorithms underlying the Duolingo English Test, a $49 one-hour, at-home assessment that’s now accepted…