Watson Tutor: a scalable dialog-based tutoring system

Bruce Slawson, IBM, bruce.slawson@us.ibm.com Nirmal Mukhi, IBM, nmukhi@us.ibm.com Matthew Ventura, Pearson, matthew.ventura@pearson.com Renuka Sindhgatta, IBM, renuka.sr@in.ibm.com Peter Foltz, Pearson, peter.foltz@pearson.com

We present the Watson Tutor, an intelligent tutoring system designed to improve student outcomes and engagement. This system leverages AI software building on IBM's Watson platform and learning / content expertise from Pearson Education to allow students to seamlessly conduct a review with the Tutor embedded within digital courseware. The Tutor orchestrates multiple learning activities within a Socratic, natural language conversation conducted via chat. The system contains a number of innovations in natural language processing, including short answer scoring, assessment generation and question recom