代码相似性检测在程序设计教学中的应用

代码剽窃是程序设计课程中经常出现的一种作弊行为,检测剽窃的源代码、验证学生程序作业的原创性在教学中很重要。程序代码的相似度度量是剽窃检测的关键技术。本文首先对现有程序代码相似性检测技术进行研究,然后改进Halstead算法,提出了基于统计学方法程序代码相似性检测算法,最后对算法的有效性进行了实验分析。

Application of Code Similarity Detection in Program Designing Teaching

Code plagiarism is one kind of cheat behavior, which appears frequently in the programming curriculum. Detection of source code plagiarism is important to verify the originality of students＇ project works during teaching. The code similarity measurement is the key technology in the plagiarizing detection. In the paper, first, the existing program code similarity detection techniques are studied. Then, improve Halstead algorithm and propose an algorithm for code similarity detection based on statistical methods. At last, the effective of algorithm is analyzed through experiments.