Solution of class imbalance of k-nearest neighbor for data of new student admission selection

Siti Mutrofin(1*), Ainul Mu'alif(2), Raden Venantius Hari Ginardi(3), Chastine Fatichah(4),


(1) Universitas Pesantren Tinggi Darul Ulum, Jombang
(2) Universitas Pesantren Tinggi Darul Ulum, Jombang
(3) Institut Teknologi Sepuluh Nopember, Surabaya
(4) Institut Teknologi Sepuluh Nopember, Surabaya
(*) Corresponding Author

Abstract


The objective of this research is to correct the inconsistencies associated with the response differences by each examiner with respect to the assessment of each hafiz candidate. To carry out this research, 259 students were selected within a week using 4testers. However, the examiners are also tasked with another essential mandate which must be immediately fulfilled asides testing candidates for hafiz. In order to overcome this problem, the Educational Data Mining (EDM) system is applied during classification. The problems associated with the use of this technique however, is the limited number of attributes and the imbalance data class. This study was proposed to apply the kNN (k-Nearest Neighbor) technique. The results obtained indicates that kNN can provide recommendations to testers who are students and it is suitable for the solving the problem associated with class imbalance as indicated by the application of Shuffled and Stratified sampling techniques which has values of accuracy, precision, recall and AUC > 0.8%.

Keywords


class balance; class imbalance; EDM; kNN; tahfiz

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DOI: https://doi.org/10.29099/ijair.v3i2.92

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