Application of Deep Self-Attention in Knowledge Tracing
This work addresses knowledge tracing for students using online assessment systems, but it is incremental as it builds on existing methods with modest gains.
The paper tackled knowledge tracing for intelligent tutoring systems by proposing Deep Self-Attentive Knowledge Tracing (DSAKT), which improved AUC by 2.1% on average on the PTA dataset and performed well on the ASSIST dataset.
The development of intelligent tutoring system has greatly influenced the way students learn and practice, which increases their learning efficiency. The intelligent tutoring system must model learners' mastery of the knowledge before providing feedback and advices to learners, so one class of algorithm called "knowledge tracing" is surely important. This paper proposed Deep Self-Attentive Knowledge Tracing (DSAKT) based on the data of PTA, an online assessment system used by students in many universities in China, to help these students learn more efficiently. Experimentation on the data of PTA shows that DSAKT outperforms the other models for knowledge tracing an improvement of AUC by 2.1% on average, and this model also has a good performance on the ASSIST dataset.