A DOCUMENT COPY DETECTION SYSTEM BASED ON PLAGIARISM PATTERNS

摘要

A system for detecting document copy based on plagiarism patterns is provided to correctly determine whether a document is plagiarized or not by flexibly calculating a similarity and providing information for the plagiarism pattern found while comparing an original document with the compared document based on the plagiarism patterns. A sentence divider(2) divides the document received through a queried document input part(1) and the original document stored in an original document database(6) into a sentence unit if the queried document is received through the queried document input part. A local similarity extractor(3) extracts the similarity of a sentence unit and plagiarism pattern information from the divided sentence by using a comparison/evaluation function. A document similarity extractor(5) displays a result to the user through a result output part(7) by calculating document similarity and the plagiarism pattern of each original document based on the information outputted from the local similarity extractor, and purifying the document similarity and the plagiarism pattern.