The study of thesis replica detecte methods based on similarity of text

To monitor and constraint the plagiarism phenomenon of dissertation, In this paper, we discuss the method of re-investigation method based on similarity of text, and to study dissertation information, the design and realization of chinese text word segmentation and similarity computing with computer system is put forward which make use of TF-IDF method based on VSM combined with the word segmentation system. Theoretical and experimental results showed that the method is feasible and has good space efficiency.