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All Journal INOVTEK Polbeng - Seri Informatika
Listyaningsih, Endang Palupi
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Computer Science & IT

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DETEKSI PLAGIAT TESIS BERBAHASA INDONESIA MENGGUNAKAN METODE COSINE SIMILARITY Ansis, Syukry; Listyaningsih, Endang Palupi; Soetanto, Hari
Jurnal Inovtek Polbeng Seri Informatika Vol 9, No 1 (2024)
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/isi.v9i1.4003

Abstract

This research aims to test the performance of the Cosine Similarity method in comparison with the Jaccard Similarity method and to obtain the percentage of similarity. Sample data is obtained from students' data at Budi Luhur campus. The test model will be evaluated by comparing several original theses with documents containing plagiarism. The original documents are processed using Natural Language Processing (NLP) methods. One important NLP method is the Jaro Winkler method, which focuses on spelling correction. Subsequently, text mining algorithms are applied for text processing. The results showed that the Cosine Similarity method achieved high accuracy, at 96.63%, demonstrating its ability to classify documents well as plagiarism or not. The use of Jaccard Similarity shows low accuracy, around 50.5%, but provides an overview of potential improvements or updates to the model to improve performance.Keywords - Cosine Similarity, Jaccard Similarity Thesis Classification, Threshold, NLP
Co-Authors Ansis, Syukry Hari Soetanto