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All Journal Jurnal Informatika dan Teknik Elektro Terapan Proceeding SENDI_U Jurnal Teknik Informatika UNIKA Santo Thomas JurTI (JURNAL TEKNOLOGI INFORMASI) Antivirus : Jurnal Ilmiah Teknik Informatika Jurnal ICT : Information Communication & Technology JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Ilmu Teknik dan Komputer JIKA (Jurnal Informatika) MEANS (Media Informasi Analisa dan Sistem) Tematik : Jurnal Teknologi Informasi Komunikasi Jurnal Informatika Terpadu Jurnal Saintekom : Sains, Teknologi, Komputer dan Manajemen Jurnal Janitra Informatika dan Sistem Informasi Jurnal Teknik Informatika Unika Santo Thomas (JTIUST) Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) Journal of Artificial Intelligence and Engineering Applications (JAIEA) Jurnal Informatika dan Teknologi Informasi Journal of Software Engineering and Information System (SEIS) Jurnal Teknologi Ilmu Komputer AMMA : Jurnal Pengabdian Masyarakat NERO (Networking Engineering Research Operation) Jurnal Kecerdasan Buatan dan Teknologi Informasi Jurnal Komtika (Komputasi dan Informatika)
Suarna, Nana
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Humanities Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing

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METODE FP-GROWTH UNTUK MENGOPTIMALKAN REKOMENDASI PENJUALAN MAKANAN DAN MINUMAN DI PIKNIK CAFÉ Muharam, Arbi Adi; Suarna, Nana; Ali, Irfan; Effendy, Dendy Indria
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i1.5935

Abstract

Penelitian ini bertujuan untuk mengoptimalkan rekomendasi penjualan makanan dan minuman di Piknik Café dengan menggunakan metode FP-Growth. Pemilihan topik ini didasarkan pada kebutuhan untuk meningkatkan strategi penjualan yang lebih efektif dan efisien dalam menyajikan rekomendasi produk kepada pelanggan. FP-Growth, sebagai salah satu algoritma dalam data mining, menawarkan keunggulan dalam menemukan pola tersembunyi dan asosiasi antara item-item yang sering muncul bersama dalam transaksi. Metode ini diterapkan pada data transaksi penjualan di Piknik Café untuk mengidentifikasi kombinasi makanan dan minuman yang paling sering dibeli bersama. Hasil penelitian menunjukkan bahwa FP-Growth berhasil mengidentifikasi asosiasi yang signifikan antara beberapa item, yang kemudian digunakan untuk menyusun rekomendasi penjualan yang lebih tepat sasaran. Implementasi rekomendasi ini diharapkan dapat meningkatkan kepuasan pelanggan dan pendapatan café. Kesimpulan dari penelitian ini menekankan pentingnya penggunaan metode data mining seperti FP-Growth dalam meningkatkan strategi penjualan dan pengambilan keputusan berbasis data di sektor kuliner.
PENERAPAN ALGORITMA K-MEANS CLUSTERING UNTUK MENINGKATKAN MODEL PENGELOMPOKAN DAN KINERJA JARINGAN WI-FI SECARA OPTIMAL Fauzan, Akmal; Suarna, Nana; Ali, Irfan; Susana, Heliayanti
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 2 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i2.6272

Abstract

Penelitian ini mengimplementasikan algoritma K-Means Clustering untuk menganalisis pola penggunaan jaringan Wi-Fi, guna meningkatkan efisiensi pengelolaan bandwidth dan kualitas layanan. Data berupa kecepatan internet, biaya layanan, dan lokasi pelanggan diolah menggunakan RapidMiner, menghasilkan klaster dengan nilai Davies-Bouldin Index (DBI) sebesar 0.006, menunjukkan kualitas klaster yang sangat baik. Hasilnya memberikan wawasan mendalam tentang segmentasi pelanggan dan pola penggunaan layanan untuk pengambilan keputusan strategis. Algoritma KMeans terbukti efektif dalam optimalisasi sumber daya jaringan, serta menjadi dasar pengembangan sistem monitoring real-time dan teknologi data mining untuk pengelolaan jaringan Wi-Fi skala besar.
ANALISA PERBANDINGAN PERFORMA OPTIMIZER ADAM, SGD, DAN RMSPROP PADA MODEL H5 Anggara, Doni; Suarna, Nana; Arie Wijaya, Yudhistira
NERO (Networking Engineering Research Operation) Vol 8, No 1 (2023): Nero - 2023
Publisher : Jurusan Teknik Informatika Fakultas Teknik Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/nero.v8i1.19226

Abstract

Melakukan komunikasi tidak sebatas berbentuk verbal saja, bisa juga berkomunikasi nonverbal yaitu dengan menyampaikan informasi dari ekspresi wajah. Namun, permasalahan dalam analisa ekspresi wajah jika melakukan pendeteksian ekspresi wajah secara manual maka akan membutuhkan waktu yang cukup lama dan tidak selalu akurat, sedangkan jika melakukan pendeteksian menggunakan machine learning berbasis Python maka akan mempersingkat proses pendeteksian ekspresi wajah, oleh karena itu diperlukan suatu model yang memiliki tingkat accuracy yang mumpuni sehingga dapat mendeteksi dan mengklasifikasikan ekspresi wajah dengan cepat dan akurat. Tujuan utama dari penelitian ini yaitu untuk mengetahui optimizer mana yang terbaik diantara Adam, SGD, dan RMSprop untuk model klasifikasi dengan membandingkan performa hasil training dari setiap optimizer dimana hasil dari proses training menghasilkan file model dengan ekstensi h5. Model dengan metrik accuracy, validation accuracy, loss, waktu tempuh, dan size model terbaik di antara optimizer tersebut akan di nyatakan sebagai optimizer terbaik. Data yang digunakan berupa foto sebanyak 71.774 foto dengan 7 label ekspresi wajah yang diantaranya senang, sedih, terkejut, marah, takut, jijik, dan netral. Metode yang digunakan untuk mengukur performa model pada dataset yang diberikan yaitu evaluate() dari library Keras, classification_report dan precision_recall_fscore_support yang terdapat pada library sklearn.metrics. Dengan skenario pengujian 60 epochs dan learning rate sebesar 0.001, Optimizer Adam memiliki nilai accuracy lebih tinggi yaitu 68.61% disusul oleh SGD dengan nilai accuracy sebesar 57.68% dan accuracy RMSprop sebesar 54.83%.Kata kunci: Adam, Deep learning, Ekspresi Wajah, Klasifikasi, Optimizer, RMSprop, SGD.
Penerapan Convolutional Neural Network (CNN) Untuk Prediksi Penyakit Tanaman Padi Melalui Citra Daun Sariah, Sariah; Suarna, Nana; Ali, Irfan; Solihudin, Dodi
Jurnal Komtika (Komputasi dan Informatika) Vol 9 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/komtika.v9i1.12852

Abstract

Penyakit tanaman padi merupakan salah satu faktor utama yang dapat menurunkan hasil produktivitas, terutama di negara agraris seperti Indonesia. Deteksi dini terhadap penyakit ini sangat penting untuk menghentikan pertumbuhan ekonomi lebih lanjut dan mengurangi kemerosotan ekonomi. Masalahnya, identifikasi tanaman padi secara manual membutuhkan banyak waktu dan tenaga, dan seringkali tidak efisien dalam skala besar. Untuk mengatasi masalah ini, tujuan dari penelitian ini adalah mengembangkan model untuk memprediksi penyakit tanaman yang dapat menganalisis gejala penyakit dari citra daun dengan akurasi yang tinggi, sehingga memungkinkan deteksi penyakit dan mitigasi dampak penyakit yang lebih efektif. Metode yang digunakan dalam penelitian ini yaitu algoritma Convolutional Neural Network (CNN) yang memungkinkan pengumpulan data citra daun padi dari berbagai kondisi kesehatan tanaman padi. Dataset yang digunakan dalam penelitian ini berasal dari sumber sekunder dan citra daun padi yang dikumpulkan secara langsung dilapangan. Dataset ini dianalisis menggunakan teknik augmentasi untuk meningkatkan kualitas dan keberagaman data. Berdasarkan hasil penelitian, model CNN terbaik mampu mendeteksi penyakit tanaman padi dengan akurasi hingga 87,43%. Model ini juga menunjukkan tingkat prediksi dan kepercayaan yang tinggi untuk beberapa penyakit kritis, seperti Blast, Blight, Dan Tungro. Hasil penelitian ini menunjukkan potensi CNN dalam membantu petani mendeteksi penyakit tanaman padi, yang pada akhirnya dapat meningkatkan produktivitas dan mengurangi kerugian.
MODEL PREDIKSI PENERIMA BANTUAN SOSIAL BERBASIS ALGORITMA RANDOM FOREST Sukma, Siti Hatmara; Suarna, Nana; Bahtiar, Agus; Marta, Puji Pramudya; Anam, Khaerul
Jurnal Rekayasa Perangkat Lunak dan Sistem Informasi Vol. 6 No. 1 (2026)
Publisher : Department of Information System Muhammadiyah University of Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/seis.v6i1.10526

Abstract

Inaccurate targeting of social assistance beneficiaries remains a critical issue at the village level due to subjective and inconsistent manual verification processes. This study aims to develop a predictive model for determining social assistance eligibility using the Random Forest algorithm based on 2021 SDGs Village microdata from Cibeureum Village. The research involves data preprocessing, model training, and hyperparameter optimization, with performance evaluation using accuracy, precision, recall, and F1-score metrics. The proposed model achieved an accuracy of 94.34%, indicating strong and stable classification performance. Feature importance analysis shows that housing conditions, access to clean water, and asset ownership are the most influential socioeconomic indicators. These findings demonstrate that Random Forest can effectively support data-driven decision-making and improve the accuracy of social assistance distribution at the village level.
OPTIMASI MODEL XGBOOST UNTUK PREDIKSI PENYAKIT JANTUNG MENGGUNAKAN OPTUNA Optarina, Yasni; Suarna, Nana; Bahtiar, Agus; Rahaningsih, Nining; Prihartono, Willy
Jurnal Rekayasa Perangkat Lunak dan Sistem Informasi Vol. 6 No. 1 (2026)
Publisher : Department of Information System Muhammadiyah University of Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/seis.v6i1.10527

Abstract

Heart disease is one of the leading causes of mortality worldwide, emphasizing the need for accurate early detection systems. Machine learning models such as XGBoost have demonstrated strong performance in medical classification tasks; however, their effectiveness is highly dependent on optimal hyperparameter configurations. This study aims to improve the performance of XGBoost for heart disease classification by applying hyperparameter optimization using the Optuna framework with the Tree-structured Parzen Estimator (TPE) algorithm. The UCI Heart Disease dataset, consisting of 918 records, is used in this study. To address class imbalance, the Synthetic Minority Oversampling Technique (SMOTE) is applied to the training data. Model performance is evaluated using accuracy, precision, recall, F1-score, and ROC-AUC metrics. The experimental results show that the optimized XGBoost model achieves an accuracy of 89.13%, outperforming the baseline model with 87.50%, and improves recall from 87.50% to 89.10%. In addition, the optimized model attains a higher ROC-AUC value of 0.9319, indicating improved classification stability. These findings demonstrate that Optuna-based hyperparameter optimization effectively enhances the performance and reliability of XGBoost, making it suitable for supporting early heart disease diagnosis in medical decision support systems.
Application of the K-Means Algorithm in the Segmentation of 3kg Lpg Customers Ananda, Ginaselvia; Suarna, Nana; Bahtiar, Agus; Arif Rinaldi Dikananda; Faturrohman
Journal of Artificial Intelligence and Engineering Applications (JAIEA) Vol. 5 No. 2 (2026): February 2026
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59934/jaiea.v5i2.1853

Abstract

This research was motivated by PT Sumber Perkasa Mandiri's need to understand the purchasing patterns of 3 kg LPG gas customers more accurately in order to improve the effectiveness of its marketing strategy. The purpose of this study was to apply the K-Means Clustering algorithm to form customer segmentation based on transaction behavior. The method used is a quantitative approach with sales data analysis of 850 records through the stages of data selection, preprocessing, attribute transformation, and modeling using RapidMiner Studio. Model evaluation was carried out using the Davies-Bouldin Index to determine the optimal number of clusters. The results of the study show the formation of two main clusters, namely the premium customer cluster with high purchase frequency and high loyalty, and the low-activity customer cluster that only makes purchases when necessary. The best DBI value at K=2 of 0.057 indicates excellent cluster separation quality. These findings conclude that K-Means Clustering is effective in identifying differences in consumption behavior, and its implications provide a strategic basis for companies to design loyalty programs for high-value customers and more intensive promotions for low-activity customers.
Comparison of Balancing Strategies for Classifying Guava Fruit Diseases Putri Nabilla; Suarna, Nana; Bahtiar, Agus; Rahaningsih, Nining; Prihartono, Willy
Journal of Artificial Intelligence and Engineering Applications (JAIEA) Vol. 5 No. 2 (2026): February 2026
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59934/jaiea.v5i2.1859

Abstract

The problem of class imbalance often poses an obstacle in deep learning-based image classification, especially in the domain of digital agriculture. The imbalance in data distribution makes it easier for models to recognize the majority class, while performance for the minority class declines. This study aims to analyze the effectiveness of three strategies for handling class imbalance: Weighted Loss Function, Oversampling, and a combination of Weighted Loss and Oversampling, in improving the performance of image classification of guava fruit diseases using a transfer learning-based MobileNetV2 architecture. The dataset consists of 3,784 images of three disease classes, namely Anthracnose, Fruit_Fly, and Healthy_guava, which show an imbalanced distribution. The research was conducted through the stages of Exploratory Data Analysis (EDA), pre-processing, augmentation, model training with four scenarios, and evaluation using Accuracy, Precision, Recall, F1-Score, and Macro Average F1-Score. The results showed that the Combination model (Oversampling and Weighted Loss) performed best on the minority class with an F1-score of 0.9630, the highest among all models. The Oversampling strategy produced the highest Macro F1-score of 0.9617, while Weighted Loss provided a significant improvement in classification sensitivity but was still below the combination model. Thus, it can be concluded that the combination strategy is the most effective approach in improving the sensitivity of the model to minority classes, while Oversampling excels in the overall performance stability of the model.
Mitigating Imbalanced Citrus Disease Image Datasets with Oversampling Gunawan, Arya; Suarna, Nana; Bahtiar, Agus; Marthanu, Indra Wiguna; Kaslani
Journal of Artificial Intelligence and Engineering Applications (JAIEA) Vol. 5 No. 2 (2026): February 2026
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59934/jaiea.v5i2.1862

Abstract

Dataset imbalance is a critical challenge in plant disease image classification because it causes bias towards the majority class. This study evaluates the effectiveness of augmentation-based oversampling techniques on the classification performance of citrus leaf images using the MobileNetV2 architecture. The four leaf disease classes classified include Greening, Fresh, Canker, and Blackspot. The dataset was obtained from a public repository and processed through preprocessing (resize, normalization) and augmentation (rotation, flipping, zoom) stages. The model was trained and tested in two scenarios: baseline (unbalanced data) and mitigation (data balanced through augmentation). The experimental results show that the mitigation approach was able to increase accuracy from 91.92% to 93.94%. The F1-score, precision, and recall values also increased significantly, especially in the minority class. Evaluation using a confusion matrix reinforced the finding that augmentation-based oversampling is effective in reducing classification errors. This study shows that the integration of augmentation techniques and MobileNetV2-based transfer learning can significantly improve classification performance and contribute to the development of early detection systems for plant diseases in precision agriculture.
Co-Authors Abdul Rasyid Ade Kurnia, Dian Adrian, Teguh Afiasari, Nur Aini Nurul Ainisa, Nurul Al Maeni, Nurul Al Muharom, Nurul Ibnu Alfian Nur Rahmat , Muhammad Alfian Nur Rahmat, Muhammad Alfudola, Mahfudz Amal Rois, Moh. Ichlasul Amalia, Rosnita Amarda, Juan Ameliana, Nikan Amer, Abdu Shobarudin Ananda, Ginaselvia Andi Setiawan Anggara, Doni Anggriani, Sulistia Anita Yuliyanti Apriliana Janatu Marwa Arif Fitriyanto, Goffar Arif Rinaldi Dikananda Arifqi, Tri Arya Gunawan Aulia Putri, Adinda Auliya, Suci Awaludin, Ade Ayuni, Putri baihaqqi, Farisky Dadang Sudrajat Dalifah, Nurul Danar Dana, Raditya Dendy Indriya Efendi Dewanty Rafu, Maria Dewi, Sophiyanti Dienwati Nuris, Nisa Dienwati, Nisa Dwi Prasetyo Dwilestari , Gifthera Efendi , Dendy Indriya Effendy, Dendy Indria Fachry Abda El Rahman Fadhil, Fadhil Yudistianto Faisal, Muhammad Faisal Faturrohman FAUZAN, AKMAL Fikri Ulumudin, Achmad Fikri, Moh.Yusuf Firmansyah, Fajar Frihandiansah, Riyandi Fuadi Ahmad, Cecep Gifthera Dwilestari Gilang Perwati, Intan Hamdan Mubarok, Nabil Hartiansyah, Fernandar Dwi Hermawan, Bagus Hermawan, Ramdan Hidayah, Nurni Hidayat, Pierre Galuh Hidayattullah, Rizky Ibnu Abas, Mohamad Iin, Iin Iis Riyana Illahi, Asep Wahyu Indriya Efendi, Dendy Irfan Ali, Irfan Irma Purnamasari, Ade JUBAEDAH JUBAEDAH, JUBAEDAH Julianti, Okta Nur Kaslani Khaeru, Abdullah Khaerul Anam Kholifa, Nur Kusmawanti, Nisa Laelatul Azizah, Novi Lestari, Gifthera Dwi Luthfi, Achmad Marta, Puji Pramudya Martanto . Marthanu, Indra Wiguna Mar’atun Sholihah, Oliffia Masjunedi, Masjunedi Maulida, Nida Muhamad Andika, Agus Muhammad Taufik Hidayat, Muhammad Muharam, Arbi Adi Muharromah, Oom Mulyawan Mustofa, Kafit Nining Rahaningsih Nugraha, Rifqi Nugroho, Rizwar Adi Nur Amalia, Ocsana Nur Apriliani, Nur Nurdin Nurhayah, Nurhayah Nuri Nuri Nurjanah, Nurul Nurliana, Nicky NURUL AZIZAH Nurwanda, Nurwanda Nurzaman Nurzaman Odi Nurdiawan Oktaviany, Nurul Optarina, Yasni Pajri, Riki Peni Peni Pii, Iwan Pratama, Denni Pratiwi, Intan Pratiwi, Yulita Prihartono, Wiily Prihartono, Willy PUJI LESTARI Purnamasari, Ade Irma Purnamasari, Ade Irma Purnamasari Putri Nabilla Putriana, Puput R, Nining Raditya Danar Dana Rahaning, Nining Rahaningsi, Nining Ramadhan, Gildan Jaya Muhammad Ramdani, Rizki Retnasari, Peni Rinaldi Dikananda, Arif Rinata, Ustri Ani Rini Astuti Rohendi, Ghina Fitria Rohman, Dede Rokhmatan Khaerullah, Rizal Sajidan, Dzikri Samodra Anugrah, Syawal Saniyah, Nilta Saputra, Adi Zulkarnaen Sariah Sariah Sayuti Hanapiah, Neneng Sidik, Rahmat Siti Nurhasanah Solihudin, Dodi Suarna, Annisa Annastia Sukma, Siti Hatmara Susana, Heliayanti Susana, Heliyanti Talia, Agita Hany Tati Suprapti Taulani, Taulani Tri Ginanjar Laksana Triawan, Eri Triya, Pita Widiya, Putri Wirdiyan, Farhan Azfa Wulandari, Maryam Yudhistira Arie Wijaya Zaelani, Nursehan Zeya Sebastian, Muhammad