Before revision:  To this end, we propose assessment modeling, fundamental pre-training tasks for IESs . An assessment is a feature of student-system interactions which can act as pedagogical evaluation, such as student response correctness or timeliness . Assessment modeling is the prediction of assessments conditioned on the surrounding context of interactions.
After revision:  To this end, we propose assessment modeling, fundamental pre-training tasks for IESs . An assessment is a feature of student-system interactions which can serve as a pedagogical evaluation. Examples include the correctness and timeliness of a student's answer. Assessment Modeling is the prediction of assessments conditioned on the surrounding context of interactions.