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All Journal Jambura Journal of Informatics Jusikom: Jurnal Sistem Informasi Ilmu Komputer
Nurmayanti, Trisya
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Computer Science & IT Decision Sciences, Operations Research & Management

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Comparison of K-Nearest Neighbors and Convolutional Neural Network Algorithms in Potato Leaf Disease Classification Nurmayanti, Trisya; Hartini, Dina; Rohana, Tatang; Lestari, Santi Arum Puspita; Wahiddin, Deden
Jurnal Sistem Informasi dan Ilmu Komputer Vol. 8 No. 1 (2024): JUSIKOM: JURNAL SISTEM INFROMASI ILMU KOMPUTER
Publisher : Fakultas Teknologi dan Ilmu Komputer Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/jurnalsisteminformasidanilmukomputer.v8i1.5337

Abstract

tatang.rohana@ubpkarawang.ac.id3, santi.arum@ubpkarawang.ac.id4, deden.wahiddin@ubpkarawang.ac.id5ABSTRACTPotato production in Central Java was recorded to have decreased by 10.77% by the Central Statistics Agency (BPS), from 278,717 tons in 2022 to 248,700 tons in 2023. This decline is due to the fact that potatoes are susceptible to diseases such as late blight and dry spot (early blight) which can significantly reduce yields. This study aims to evaluate the performance of Convolutional Neural Network (CNN) with VGG16 architecture and K-Nearest Neighbors (KNN) to find the best method for potato late blight classification. The dataset used consists of 1500 potato leaf images divided into training, validation, and testing. This research uses pre- processing including resizing, rescaling, and data augmentation. The results show that CNN with the VGG16 model is superior in classifying potato leaf diseases compared to KNN with the MobileNetV2 model. CNN produced an accuracy of 96% while KNN with the MobileNetV2 model obtained an accuracy of 93%. These results can be used as a powerful tool in supporting potato leaf disease identification. This model makes a significant contribution to the development of disease identification techniques through digital image processing.Keywords: Potato Leaf Disease, Convolutional Neural Network, VGG16, K-Nearest
Evaluasi Kinerja Algoritma AdaBoost dan XGBoost Menggunakan Dataset Penyakit Obesitas Pada Populasi Dewasa Sukmawati, Cici Emilia; Nur Masruriyah, Anis Fitri; Juwita, Ayu Ratna; Tejayanda, Rigger Damaiarta; Nurmayanti, Trisya
Jambura Journal of Informatics VOL 6, N0 2: OKTOBER 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jji.v6i2.27342

Abstract

Penelitian ini membahas terkait evaluasi kinerja AdaBoost dan XGBoost pada penyakit obesitas . Penelitian tersebut menggunakan dataset yang diperoleh dari sumber kaggle dengan jumlah data 2111 dengan 17 atribut. Selanjutnya, data tersebut dilakukkan preprocessing data sehingga berkurang menjadi 591 data. Kemudian, data tersebut dilakukan split data dengan perbandingan 70:30 dengan rincian data uji 119 dan data training sebanyak 472. Pengujian dilakukan menggunakan accuracy, precision dan recall. Berdasarkan hasil penelitian yang telah dilakukan, bahwa metode XGBoost terbukti lebih unggul dibandingkan dengan AdaBoost. Adapun accuracy, precision dan recall sebesar 92%. Sedangkan untuk accuracy dan recall untuk metode AdaBoost sebesar 40% sertaa precision 39%.
Co-Authors Fitri Nur Masruriyah, Anis Hartini, Dina Juwita, Ayu Ratna Lestari, Santi Arum Puspita Rohana, Tatang Sukmawati, Cici Emilia Tejayanda, Rigger Damaiarta Wahiddin, Deden