Cong Wang1, Mingming Zhao2, Qinyue Wang2, 3, Min Li2, *
CMC-Computers, Materials & Continua, Vol.65, No.3, pp. 2309-2319, 2020, DOI:10.32604/cmc.2020.09958
Abstract This paper introduces a novel mechanism to improve the performance of peer
assessment for collaborative learning. Firstly, a small set of assignments which have being
pre-scored by the teacher impartially, are introduced as “sentinels”. The reliability of a
reviewer can be estimated by the deviation between the sentinels’ scores judged by the
reviewers and the impartial scores. Through filtering the inferior reviewers by the reliability,
each score can then be subjected into mean value correction and standard deviation correction
processes sequentially. Then the optimized mutual score which mitigated the influence of the
subjective differences of the reviewers are obtained. We… More >
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