Prediksi Kualitas Udara di Daerah Istimewa Yogyakarta Menggunakan Algoritma J48 dan K-NN
DOI:
https://doi.org/10.53990/jupiter.v6i2.502Keywords:
Air classification, Data Mining, J48, K-NN, YogyakartaAbstract
Pencemaran udara telah menjadi isu lingkungan yang signifikan di Indonesia, khususnya di wilayah Yogyakarta. Penelitian ini bertujuan untuk membandingkan performa dua algoritma klasifikasi, yaitu J48 dan K-Nearest Neighbor (K-NN), dalam mengklasifikasikan data kualitas udara ke dalam kategori “Good” dan “Moderate”. Dataset yang digunakan berjumlah 5822 data yang diperoleh dari Kaggle. Tahapan pre-processing meliputi penghapusan data kosong, normalisasi, dan evaluasi menggunakan teknik 10-fold cross-validation. Hasil penelitian menunjkukan bahwa algoritma J48 memiliki akurasi sebesar 99,95% dengan nilai Kappa Statistic sebesar 0,9988, sedangkan K-NN memperoleh akurasi 98,57%. Implikasi dari penelitian ini menunjukkan bahwa J48 lebih andal digunakan dalam klasifikasi kualitas udara, terutama untuk sistem prediksi secara real-time. Penerapan sistem klasifikasi ini sangat penting dalam mendukung upaya pemantauan kualitas udara yang lebih cepat dan akurat, sehingga dapat membantu pengambilan keputusan yang responsif dalam menangani isu pencemaran lingkungan.
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