Combining empirical and machine learning techniques to predict math expertise using pen signal features. - Jianlong Zhou; Kevin Hang; Sharon L. Oviatt; Kun Yu 001; Fang Chen 001 (MLA@ICMI, 2014)

Spoken Interruptions Signal Productive Problem Solving and Domain Expertise in Mathematics. - Sharon L. Oviatt; Kevin Hang; Jianlong Zhou; Fang Chen 001 (ICMI, 2015)

Dynamic Handwriting Signal Features Predict Domain Expertise. - Sharon L. Oviatt; Kevin Hang; Jianlong Zhou; Kun Yu 001; Fang Chen 001 (ACM Trans. Interact. Intell. Syst., 2018)