Online education is playing a more and more important role in today's education. The key link of online education is to model students' knowledge mastery according to their historical behaviors, so as to obtain the knowledge tracing represented by students' current knowledge state. Previous Transformer-based knowledge tracing models have disadvantages such as inefficient model computation and redundant information on the one hand. On the other hand, the traditional knowledge tracing model cannot solve the problem of imbalanced positive and nega...
