How would you come up with a solution to identify plagiarism?

How would you come up with a solution to identify plagiarism?



-Vector space model approach
-Represent documents (the suspect and original ones) as vectors of terms
-Terms: n-grams; n=1 to as much we can (detect passage plagiarism)
-Measure the similarity between both documents
-Similarity measure: cosine distance, Jaro-Winkler, Jaccard
-Declare plagiarism at a certain threshold

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