Plagiarism Detection for Malayalam Documents

Plagiarism Detection for Malayalam Documents

Author Name : Nidhinraj P P1, Jamsheedh C V2, Neethu Subash3

ABSTRACT Plagiarism is an illicit act which has become a prime concern mainly in educational and research domains. This deceitful act is usually referred as an intellectual theft which has swiftly increased with the rapid technological developments and information accessibility. Thus the need for a system/ mechanism for efficient plagiarism detection is at its urgency. The most general form of detecting plagiarism is by computing similarity between a source document and a possibly plagiarized document. Existing plagiarism detection systems are mainly designed for detection in English. Moreover, plagiarism detection systems using natural language processing techniques are still very limited. Automated plagiarism detection systems so far have involved minimal syntactic and semantic linguistic techniques. Even though, in some systems shallow techniques have been included as part of the preprocessing stage, studies involving deep techniques are less. Very negligible research has been done for plagiarism detection in Malayalam text documents. A method for plagiarism detection in Malayalam documents based on computing similarity between documents to detect plagiarism is developed. The technique can detect documents created by direct copy methods, replacement of words with similar ones, changing the order of words or restructuring the sentences and also converting the sentence from active/ passive to passive/active.