Ling Cheng is currently the Director of Machine Learning at Quizlet, an education tech company helping students (and their teachers) practice and master whatever they are learning. During the last three years at Quizlet, she has led a team working on impactful data and machine learning initiatives including learning science and NLP-based new products such as semantic grading and advanced questions, as well as recommendations and search. Prior to Quizlet, Ling was a data science manager at Glassdoor for several years. Ling graduated from Columbia University with a B.S. in Applied Math and is a mom of two.