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Combining Approximate String Matching Algorithms and Term Frequency In The Detection of Plagiarism
Zina Balani, Cihan Varol
Pages - 97 - 105     |    Revised - 25-07-2021     |    Published - 31-08-2021
Volume - 15   Issue - 4    |    Publication Date - August 2021  Table of Contents
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KEYWORDS
Approximate, Hybrid, Plagiarism, Similarity, TFIDF.
ABSTRACT
One of the key factors behind plagiarism is the availability of a large amount of data and information on the internet that can be accessed rapidly. This increases the risk of academic fraud and intellectual property theft. As increasing anxiety over plagiarism grow, more observation was drawn towards automatic plagiarism detection. Hybrid algorithms are regarded as one of the most prospective ways to detect similarity of everyday language or source code written by a student. This study investigates the applicability and success of combining both the Levenshtein edit distance approximate string matching algorithm and the term frequency inverse document frequency (TF-IDF), thereby boosting the rate of similarity measured using cosine similarity. The proposed hybrid algorithm is also able to detect plagiarism occurred on natural language, source codes, exact, and disguised words. The developed algorithm can detect rearranged words, inter-textual similarity of insertion or deletion and grammatical changes. In this research three various dataset are used for testing: automated machine paragraphs, mistyped words and java source codes. Overall, the system proved to be detecting plagiarism better than the yet alone TF-IDF approach.
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Miss Zina Balani
Department of Software Engineering, Koya University, Koy sinjaq, 44023 - Iraq
zina.0174810@gmail.com
Associate Professor Cihan Varol
Department of Computer Science, Sam Houston State University, Huntsville, TX 77341 - United States of America