Combination of Cosine Similarity Method and Conditional Probability for Plagiarism Detection in the Thesis Documents Vector Space Model
Keywords:
Conditional Probability, Cosine Similarity, Plagiarism, Vector Space Model,Abstract
Plagiarism is one of negative impact derived from the internet growth. It can take place in various place, one of the examples is higher education environment. Plagiarism can cause many disadvantageous to other parties. So, there must be a detection system to avoid this kind of bad thing. In this proposed research, there will be made a plagiarism detection system by implementing Vector Space Model (VSM). Cosine Similarity used to make the rank of the paragraphs based on the formed angle from query vector and collection vector. The number of the taken words from the query paragraph will be derived from the calculation of the conditional probability value. After testing phase has been finished, there will be a conclusion that VSM can be implemented in the system. There are 10 testing paragraphs that compared with the collection paragraphs. The best result shows from threshold 0.3 for the conditional probability and 0.2 for cosine similarity with 54.28% for the average precision and 100% for the average recall.References
S. Dewanto, Indriati and I. Cholissodin, "Deteksi Plagiarisme Dokumen Teks menggunakan Algoritma Rabin-Karp dengan Synonym Recognition".
D. Purwitasari, P. Y. Kusmawan and U. L. Yuhana, "Deteksi Keberadaan Kalimat Sama sebagai Indikasi Penjiplakan dengan Algoritma Hashing Berbasis N-Gram," Jurnal Ilmiah KURSOR, vol. VI, no. 1, pp. 37-44, 2011.
L. Alkawero, "Pemanfaatan Metadata dalam Menilai Kesamaan Proposal Penelitian," 2013.
Jovita, Linda, A. Hartawan and D. Suhartono, "Using Vector Space Model in Question Answering System," in International Conference on Computer Science and Computational Intelligence (ICCSCI 2015), 2015, pp. 305-311.
T. Mardiana, T. B. Aji and I. Hidayah, "Stemming Influence on Similarity Detection of Abstract Written in Indonesia," TELKOMNIKA, vol. XIV, no. 1, pp. 219-227, 2016.
I. W. S. Priantara, D. Purwitasari and U. L. Yuhana, "Implementasi Deteksi Penjiplakan dengan Algoritma Winnowing pada Dokumen Terkelompok," in Jurusan Teknik Informatika, Fakultas Teknologi Informasi, Institut Teknologi Sepuluh November Surabaya, pp. 1-9, 2011.
Herqutanto, "Plagiarisme, Runtuhnya Tembok Kejujuran Akademik," eJurnal Kedokteran Indonesia , vol. I, no. 1, pp. 1-3, 2013.
W. E. Waliprana and M. L. Khodra, "Update Summarization Untuk Kumpulan Dokumen Berbahasa Indonesia," Jurnal Cybermatika, vol. I, no. 2, pp. 6-10, 2013.
L. Agusta, "Perbandingan Algoritma Stemming Porter dengan Algoritma Nazief & Adriani untuk Stemming Dokumen Teks Bahasa Indonesia," in Konferensi Nasional Sistem dan Informatika, 2009, pp. 196-201.
A. Mishra and S. Vishwakarma, "Analysis of TF-IDF Model and its Variant for Document Retrieval," in International Conference on Computational Intelligence and Communication Networks, 2015, pp. 772-776,.
T. B. Adji, Z. Abidin and H. A. Nugroho, "System of Negative Indonesian Website Detection Using TF-IDF and Vector Space Model," in International Conference on Electrical Engineering and Computer Science, 2014, pp. 174-178.
P. D. Turney and P. Pantel, "From Frequency to Meaning: Vector Space Models of Semantics," Journal of Artificial Intelligence Research, pp. 141-148, 2010.
F. Mohammadi, "A New Approach To Focused Crawling: Combination of Text summarizing With Neural Networks and Vector Space Model," ACSIJ Advances in Computer Science: an International Journal, Vol. 2, Issue 3, No. 4, pp. 31-36, 2013.
R. Mandala and H. Setiawan, "Peningkatan Performansi Sistem TemuKembali Informasi dengan Perluasan Query Secara Otomatis," 2002.
T. M. Isa and T. F. Abidin, "Mengukur Tingkat Kesamaan Paragraf Menggunakan Vector Space Model untuk Mendeteksi Plagiarisme," in Seminar Nasional dan ExpoTeknik Elektro, 2013, pp. 229-234.
M. Baron. Probability and Statistics for Computer Scientists, 2nd ed.. Richardson: CRC Press, 2014.
A. Indranandita, B. Susanto and A. R. C, "Sistem Klasifikasi dan Pencarian Jurnal dengan Menggunakan Metode Naive Bayes dan Vector Space Model," Jurnal Informatika, 2008.
Downloads
Published
How to Cite
Issue
Section
License
TRANSFER OF COPYRIGHT AGREEMENT
The manuscript is herewith submitted for publication in the Journal of Telecommunication, Electronic and Computer Engineering (JTEC). It has not been published before, and it is not under consideration for publication in any other journals. It contains no material that is scandalous, obscene, libelous or otherwise contrary to law. When the manuscript is accepted for publication, I, as the author, hereby agree to transfer to JTEC, all rights including those pertaining to electronic forms and transmissions, under existing copyright laws, except for the following, which the author(s) specifically retain(s):
- All proprietary right other than copyright, such as patent rights
- The right to make further copies of all or part of the published article for my use in classroom teaching
- The right to reuse all or part of this manuscript in a compilation of my own works or in a textbook of which I am the author; and
- The right to make copies of the published work for internal distribution within the institution that employs me
I agree that copies made under these circumstances will continue to carry the copyright notice that appears in the original published work. I agree to inform my co-authors, if any, of the above terms. I certify that I have obtained written permission for the use of text, tables, and/or illustrations from any copyrighted source(s), and I agree to supply such written permission(s) to JTEC upon request.
