Survey of Research on Automated Grading Algorithms for Subjective Questions

In educational teaching,paper assessment is an important means for teachers to understand students' grasp of know-ledge points.However,grading exam questions is a time-consuming process,and assessing subjective questions requires examiners to review the work carefully,with engagement and attention to detail,often consuming a significant amount of energy.To reduce the workload on teachers and improve the efficiency of subjective question assessment,research on AI-based automatic grading techniques is imperative,with subjective question evaluation posing a particular challenge.With advancements in machine learning and deep learning in the field of natural language processing,significant progress has been made in the automation of subjective question assessment.This paper categorizes subjective questions into conventional and open-ended types,respectively,conducts a literature review,summarizes evaluation criteria and publicly available datasets,and outlines methods and technological approaches involved.Finally,the future research directions of automatic evaluation of subjective questions is summarized and prospected.