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All Journal Bulletin of Applied Mathematics and Mathematics Education Jurnal Pelita Sriwijaya
Zayanti, Des A.
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Humanities Environmental Science Mathematics Other

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Comparing the performance of DTID3 and DTID3-Smote methods in predicting the rain events with unbalanced classes Zayanti, Des A.; Eliyati, Ning; Resti, Yulia; Hoiri, Sajiril; Kresnawati, Endang S.; Dewi, Novi R.; Amran, Ali; Yani, Irsyadi
Bulletin of Applied Mathematics and Mathematics Education Vol. 5 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/bamme.v5i1.13122

Abstract

Prediction of rainfall events in a region is important for many aspects of life. However, the majority of datasets that predict rainfall events have an unbalanced distribution of observations in their classes, including the Prabumulih city dataset, South Sumatra. DTID3 provides very satisfactory performance in many cases of prediction, while the Smote technique is useful for balancing the distribution of data classes.  This study aims to compare the performance of the DTID3 and DTID3-Smote methods in predicting rainfall events in Prabumulih City.  The main contribution of this study compared to previous studies is that the DTID3 and Smote methods are used together to predict rainfall events, especially in Prabumulih City. Using training data from 2017-2022 and test data from 2023, the results show that the DTID3-Smote method has a better performance measure than the decision tree method in predicting rainfall events in Prabumulih City. In the decision tree method, the accuracy, precision, recall, specificity, and f1-score metrics are 73.56%, 81.91%, 50.94%, 91.22%, and 62.81%, respectively. In the decision tree-SMOTE method, the values ​​are respectively 74.66%, 82.61%, 53.44%, 91.22%, and 64.9%.
PENGENALAN KONSEP HIMPUNAN FUZZY DALAM MENDUKUNG LITERASI SAINS DAN NUMERASI Resti, Yulia; Zayanti, Des A.; Kresnawati, Endang S.; Eliyati, Ning; Yani, Irsyadi
Jurnal Lentera Nusantara Vol 4 No 1 (2025): Jurnal Pelita Sriwijaya
Publisher : Asosiasi Peneliti Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51630/jps.v4i1.180

Abstract

Literasi sains dan numerasi diperlukan masyarakat modern untuk menghadapi berbagai permasalahan ilmu pengetahuan dan teknologi. Sayangnya berdasarkan tes PISA, literasi sains dan numerasi anak-anak Indonesia tergolong sangat rendah. Guna mendukung literasi sains dan numerasi, pada kegiatan ini, konsep himpunan fuzzy dikenalkan kepada siswa-siswa SMA-SMK Kartini Palembang. Penguasaan tentang konsep keanggotaan himpunan secara umum (himpunan crisp) dan keanggotaan himpunan fuzzy beserta contoh nyata dalam kehidupan sehari-hari diberikan kepada siswa untuk memberikan kemudahan dalam memahami materi. Penilaian kemampuan diberikan dalam bentuk pra-test dan post test. Hasil kegiatan menunjukkan bahwa literasi sains dan numerasi khalayak sasaran meningkat signifikan. Uji beda rata-rata kedua kelompok nilai pra-test dan post-test dengan tingkat signifikansi 5 % untuk khalayak sasaran menunjukkan bahwa kedua kelompok memiliki perbedaan yang signifikan, Hasil ini juga menginfomasikan bahwa rata-rata nilai post-test secara signifikan mengalami peningkatan. Artinya kegiatan kegiatan pengabdian kepada masyarakat ini memberikan implikasi yang signifikan terhadap peningkatan kemampuan literasi dan numerasi mereka.
Co-Authors Ali Amran Dewi, Novi R. Hoiri, Sajiril Irsyadi Yani Kresnawati, Endang S. Ning Eliyati Yulia Resti