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ANALYSIS OF SVM AND NAIVE BAYES ALGORITHM IN CLASSIFICATION OF NAD LOANS IN SAVE AND LOAN COOPERATIVES Sugeng Riyadi; Muhammad Mizan Siregar; Khairul fadhli Fadhli Margolang; Karina Andriani
JURTEKSI (Jurnal Teknologi dan Sistem Informasi) Vol 8, No 3 (2022): Agustus 2022
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurteksi.v8i3.1483

Abstract

Abstract: Non-performing loan (NPL) is a risk that credit unions must face and to avoid that, prospective debtors need to be surveyed. With previous loan data, support vector machine and naïve bayes can be used as classification methods to give a decision about NPL. We use a data set with 61 data and process the data with orange 3.30 application to see the difference between SVM using linear (SVM-L), polynomial (SVM-P), RBF (SVM-R) and sigmoid (SVM-S) kernel with naïve bayes. We use a cross validation technique with various folds to measure the classification results and a convusion matrix to measure the data training classification results. Naïve bayes scores the highest in terms of accuracy and SVM-R scores the highest in terms of F1, precision and recall. SVM-P scores the lowest in terms of accuracy, F1, precision and recall. Naïve bayes scores the highest in terms of proportion of predicted for true negative class and proportion of actual for true positive class. SVM-S scores the highest in terms of proportion of predicted for true positive class and proportion of actual for true negative class. SVM-P scores the lowest in both proportion of predicted and proportion of actual.             Keywords: classification; naïve bayes; non-performing loan; support vector machine  Abstrak: Kredit macet merupakan resiko yang sering dialami koperasi simpan pinjam, sehingga perlu dilakukan survei terhadap calon debitur agar kredit menjadi sehat. Dengan menggunakan data pemberian kredit sebelumnya, support vector machine dan naïve bayes digunakan sebagai metode klasifikasi untuk memberikan keputusan macet atau tidaknya kredit anggota koperasi Mutiara Sejahtera. Data set yang berjumlah 61 data diolah menggunakan aplikasi Orange 3.30 dan dilihat perbandingan antara metode SVM dengan kernel linear, polynomial, RBF dan sigomoid dengan metode naïve bayes. Cross validation dengan jumlah fold bervariasi digunakan sebagai nilai ukur klasifikasi dan convusion matrix digunakan sebagai nilai ukur klasifikasi data training. Hasil yang diperoleh adalah naïve bayes memiliki nilai accuracy tertinggi dan SVM kernel RBF memiliki nilai F1, precision dan recall tertinggi. SVM kernel polynomial memiliki nilai terendah untuk accuracy, F1, precision dan recall. Naïve bayes memiliki nilai tertinggi untuk proportion of predicted (PoP) kelas true negative dan proportion of actual (PoA) kelas true positive. SVM kernel sigmoid memiliki nilai tertinggi untuk PoP kelas true positive dan PoA kelas true negative. SVM kernel polynomial memiliki nilai terendah baik untuk PoP maupun PoA true negative dan kelas true positive. Kata kunci: klasifikasi; kredit macet; naive bayes;  SVM
Analisa Kualitas Auditor Di Kantor Jasa Akuntansi Menggunakan Multi Layer Perceptron Muhammad Mizan Siregar
Jurnal Ilmu Komputer Vol 15 No 2 (2022): Jurnal Ilmu Komputer
Publisher : Informatics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Auditing practices are generally carried out by auditors who join a partner organization consisting of senior auditors and junior auditors. The quality of this audit is generally as-sessed from the ability of the auditor to find errors in the auditee's financial statements and report their findings. This study compares the results of the classification of auditor quality at the Accounting Services Office (KJA) Azhar Maksum & Partners between the multi-layer perceptron classification model that uses the ReLu, Tanh and Sigmoid activa-tion functions. Evaluation was measured using k-fold cross validation with variations in K values of 5 and 10 to measure accuracy, F1, precision and recall. The results obtained from the average cross validation value are that the ReLu activation function is the best activation function to be used in the quality classification model of KJA Azhar Maksum & Partners auditors, it can be seen from the average accuracy value of 82.7%, the average F1 value of 83.4%, the average precision value is 88.9% and the average recall value is 82.7%. Also, the Sigmoid activation function is the worst activation function to be used in the quality classification model of KJA Azhar Maksum & Partners auditors, it can be seen from the average accuracy value of 69.2%, the average F1 value of 56.6%, the average precision value of 47.9 % and the average recall value is 69.2%.