A Comparison of Face-based and Interaction-based Affect Detectors in Physics Playground. - Shiming Kai; Luc Paquette; Ryan S. Baker 001; Nigel Bosch; Sidney K. D'Mello; Jaclyn Ocumpaugh; Valerie Shute; Matthew Ventura (EDM, 2015)

Classifying behavior to elucidate elegant problem solving in an educational game. - Laura J. Malkiewich; Ryan S. Baker 001; Valerie Shute; Shiming Kai; Luc Paquette (EDM, 2016)

A Typology of Players in the Game Physics Playground. - Stefan Slater; Alex J. Bowers; Shiming Kai; Valerie Shute (DiGRA Conference, 2017)