A Plagiarism Detection System in Computer Source Code

This paper is an extended version of the paper (Marinescu et al., 2012) about plagiarism detection. The plagiarism is a very important problem especially in the field of education and research. Due to the huge amount of information available on Internet the plagiarism is very tempting especially for the students. The available software for checking plagiarism is too much expensive and open source software is low and unreliable. This is a difficult problem for education sectors, not only for document plagiarism but also for computer source code plagiarism. The objective of this paper is to describe an application for detection of the plagiarism in computer source code because this kind of plagiarism is very frequent in education field. This tool analyses more projects in the same time and by using an efficient algorithm it can decide if the code is unique or not. This application was developed for code refactoring and not for other kinds of plagiarism. It detects any proof of cheating and it works against different levels of similarity,from low level similarities till high level ones.