Teaching assistant robot being used for help in online courses

Students at Georgia Institute of Technology found out that a teacher assistant giving them assistance they was actually Jill an artificially intelligent robot. Jill was created to provide faster answers and feedback to students and take some of the pressure of teaching large classes off the instructors. The class is a core requirement of Georgia Tech's online master's program in computer science, and it tends to draw a lot of questions from students. It's offered every semester, and each time, the 300 or so students enrolled post roughly 10,000 messages in the course's online forums, Goel estimates. That volume has often overwhelmed Goel and his eight teaching assistants, so this time, he added a ninth: Jill.