在线考试防抄袭考生试卷生成模型

Anti-Plagiarism Paper Generation Model for Online Examination

为了增大统一组织的在线考试中考生试卷间题目排列的差异性,防止邻座考生相互抄袭,提出了题目位置相似度的定义,并根据位置相似度提出并实现了由同一份试卷,生成多份题目排列顺序不同的考生试卷(变换卷)的模型.通过与随机排列试卷题目方法生考生试卷对比,结果表明,在按照题目类型和难度分组时,使用该模型,邻座考生间试卷题目排列的差异性明显大于随机方式.

To increase the diversity of question item arrangement between examination papers in an uniformly organized online examination, this paper proposes a definition of position similarity between examination papers, presents and implements a transformed paper generation model based on position similarity. Experiments show that this model could generate papers with larger diversity on question item sequence compared with the one generated by random arrangement when question items are grouped by item types and difficulty levels.