Cheung, William Chi KeungWilliam Chi KeungCheungChan, Anthony Hing-HungAnthony Hing-HungChanTsang, Keith Kin KeiKeith Kin KeiTsangChan, Horence Ho HinHorence Ho HinChan2023-05-252023-05-252021https://repository.sfu.edu.hk/handle/sfu/3814An AI Virtual Teaching Assistant with Smart Search and Feedback has been developed and is being evaluated. It supplements the tuition from the teachers with a Q&A system with higher accuracy of question mapping based on elimination and involvement of stop words in a two-step searching algorithm. An effective and efficient method is applied to estimate the level of students, providing feedback on teaching performance.enconference proceedings10.29007/6sjx