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Journal : Building of Informatics, Technology and Science

Optimasi Deteksi Intrusi Jaringan Menggunakan Hybrid Model Autoencoder dan Random Forest Nanda, Afri; Nasution, Torkis; Rahmaddeni, Rahmaddeni; Herwin, Herwin
Building of Informatics, Technology and Science (BITS) Vol 7 No 4 (2026): March 2026
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bits.v7i4.9309

Abstract

Conventional Intrusion Detection Systems often suffer from performance degradation due to their inability to handle the complexity of high-dimensional data and class imbalance in modern network traffic. This study aims to optimize the Network Intrusion Detection System (IDS) by addressing the limitations of the Random Forest algorithm in handling high-dimensional data and its lack of model transparency (black-box). The proposed method is a Hybrid model integrating an Autoencoder as a non-linear feature extractor and Random Forest as a classifier. The Autoencoder is trained using a semi-supervised strategy to generate latent features and Reconstruction Error (MSE), which serves as a robust anomaly indicator. Additionally, the Synthetic Minority Over-sampling Technique (SMOTE) is applied to address class imbalance in the NSL-KDD dataset. To address the challenge of interpretability, SHAP-based Explainable AI (XAI) is strategically implemented to elucidate the complex interactions between the Autoencoder-compressed latent features and the final classification decisions, thereby transforming this hybrid architecture into a transparent system. Evaluation results demonstrate that the Hybrid Autoencoder-Random Forest model outperforms the Random Forest Baseline, achieving an Accuracy increase of 2.54% (to 77.61%) and a Recall increase of 3.96% (to 62.31%). The significant improvement in the Recall metric empirically validates the effectiveness of hybrid features, specifically the Reconstruction Error, in detecting Zero-Day attacks characterized by unknown patterns. Furthermore, SHAP visualization successfully reveals the contribution of latent features, providing crucial transparency for network security forensic analysis.
Co-Authors -, Dwi Haryono Abadi, Ferryal Abdul Alim Abdul Rahim Achmad Rosyadi Yusuf Hibai, Achmad Rosyadi Yusuf Adrias, Cici Rahmayanti Afdal Afdal, Afdal Agustin Agustin Agustin Ahsan, Miftahul Khair Akhmad Akhmad Alfahral, Reza Alrif, Syaharuddin Amaliah, Ema Ambon, Nur Intan Amirullah -, Amirullah Andesa, Khusaeri Andi Mulyadi Andika, Ilham Angeline angeline Anggraini, Subekti Anggraini, Subekti Wining Anshary, Muhammad Ridha Anwar, Fozi Arifa, Noorul Asan, Adrianus Kia Askara, Ghanisa Anggit Awaluddin, M Bahtiar Bahtiar Bantulu, Ananta Rahayu Bely, Bely Budiharti Budiharti Candra Tri Utami Chandra Kusuma Wibawa Chintya, Ora Christina Fajar Sriwahyuniati Dahalan, Shakila Che Dwi Haryono Edwar Ali Enny Zubaidah Erlin Ernawati Ernawati Eva Johannes Fadli Ihsan Fahirah, Jihan Fahrika, A. Ika Fahzri, Muhamad Faidillah Kurniawan Farida Agus Setiawati Feri Dwi Astuti, Feri Dwi Firna Anggriani Mile, Firna Anggriani Fitriana Fitriana Fransiskus Zoromi Fransiskus Zoromi, Fransiskus Gemini Alam Gultom , Polter Gultom, Iwan J.P Gusmanida, Gugun Haidir, Muhammad Hamdani - Handika, Marezi hanudin, sub haq, Nasrul Haryani Haryani Hasan Hasan Helda Yenni, Helda hikma, Nurhikma Hikmah, Annafi'atul Hikmah, Arina Nur Ilham Wahyudi Indriana Rahmawati Jamaluddin Jamaluddin Jhon, Winarni Julianti, Selly Junadhi Junadhi Junadhi, Junadhi Junaedi, Fhadillah Karhani, Muna Karmini Karmini Karyati Karyati Kasyfillah, Muhammad Haidarsyah Khusaeri Andesa Khusaeri Andesa Koko Harianto Kurniawanto, Eko Kurniawati Kurniawati Kusumawati, Tri Harum Letisia, Maria Lukman, Adli Lydia Surijani Tatura M Destiani, Deassy M. Wino Adi Putra M. Yogi Riyantama Isjoni Mardainis Mardianis , Mardianis Mariah Mariah, Mariah Meilani Meilani, Meilani Mindarwati, Yunita Esti Mitra, Andi Monika, Arum Muhammad Said Husin Muhammad, Farhan Muldin, Nurul Insani Muzakkir Baits, Muzakkir Nabillah, Rokhmatun Naim, Nurul Khatimah nanda, afri Nawan Primasoni nirwana rasyid, nirwana Noviana Noviana Novitasari, Welly Nugroho, Alnico Imam Nuha, Uli Nur Faizin - Nur, Wardah Rafidah Nurfadila Nurfadila, Nurfadila Nurjayadi Nurjayadi Nurung, Ayyub Harly Nurwirhanuddin, Nurwirhanuddin Pasaribu, Rechman Pramesti , Selviana Dewi Purwaningsih, Arifah Yuli Putra, Jean Riko Kurniawan Putra, Rahman Pranovri PUTRI WULANDARI Qureshi, Muhammad Saifullah R. Rusli Rachmat Kosman, Rachmat Rafael Billy Leksono, Rafael Billy Rahayu Condro Murti Rahmaddeni Rahmaddeni Rahmanto, Ihwan Rahmayanti, Hani Rahmayanti Ramadhana, Evi Rahma Rasul, A. Rasul Ratna Budiarti Ratna Purwanti, Indah Razak, Syaparuddin Rendi Rendi, Rendi Renyaan, Anastasya Ricki, Ricki Ririn Ririn Rita Eka Izzaty, Rita Eka Rizki Ramadhani Rizky, Deo Alfa Roehan, Muhammad Sani Rofika, Evi Romaida Efrianti Br Situmorang, Yustina Rometdo Muzawi, Rometdo Rosita Endang Kusmaryani Rudy Tandra Rusman, Haerusman Samudera, Arung Saputra, Richard Sari, Erwika Dwika Sari, Felisa Ananda Sartini Sartini Selpida Handayani, Selpida Selviati, Ratmi Septianingtias, Arina Siga, Adolfus Siktus Siska Nuryanti, Siska Siswahyudianto Siti Rohmah Nurhayati Sjafaraenan Sjafaraenan, Sjafaraenan Sompa, Putri Tenri Sri Wahyuni Subagyo Irianto Sugiono Sugiono Suhendar Suhendar, Suhendar Sujati, Hironimus Supartinah Supartinah Susandri, Susandri Susanti, Susanti Syamsiar, Syamsiar Tadjuddin Naid Tandukar, Kritika Torkis Nasution Tri Hadi Karyono Trisakti, Jhon Citro Triyani Arita Fitri Tuwu, Darmin Umafagur, Dea Andela Vina Meliana, Vina Vincent Vincent, Vincent Waruwu, Jefnita Sain Wenehenubu, Fitalis Ekhy Widowati, Fairuz Dyah Widyatmike Gede Mulawarman Wirawan, Alif Yusra Wuri Wuryandani Yahya, Fifi Adelia Yoel Yoel Yoga Yuniadi Yuridu, Fatur Rahmansyah