AST-based plagiarism detection method

Abstract

In this paper, a code plagiarism detection based on the AST is studied. It pre-formats code, analysis lexical and syntax and obtains the corresponding AST. Then it traverses AST to generate code sequences, calculates the similarity of the code sequence and gets the code plagiarism detection report. Test results verify the effectiveness of the method. © 2012 Springer-Verlag.