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All Journal International Journal of Evaluation and Research in Education (IJERE) ComEngApp : Computer Engineering and Applications Journal Indonesian Journal of Electronics and Instrumentation Systems IJCCS (Indonesian Journal of Computing and Cybernetics Systems) Jurnal Ilmu Komputer dan Informasi Jurnal Ilmiah Informatika Komputer Jurnal Simetris Jurnal Buana Informatika TELKOMNIKA (Telecommunication Computing Electronics and Control) Intiqad: Jurnal Agama dan Pendidikan Islam Telematika : Jurnal Informatika dan Teknologi Informasi Scientific Journal of Informatics CESS (Journal of Computer Engineering, System and Science) Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Jurnal Fourier InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan Proceeding of the Electrical Engineering Computer Science and Informatics Fountain of Informatics Journal JPSE (Journal of Physical Science and Engineering) Jurnal Teknologi dan Sistem Komputer Journal of Information Technology and Computer Science RABIT: Jurnal Teknologi dan Sistem Informasi Univrab Jurnal Informatika INTEGER: Journal of Information Technology Jurnal Matematika: MANTIK JURNAL MEDIA INFORMATIKA BUDIDARMA Desimal: Jurnal Matematika JTERA (Jurnal Teknologi Rekayasa) BAREKENG: Jurnal Ilmu Matematika dan Terapan JOURNAL OF APPLIED INFORMATICS AND COMPUTING Unisda Journal of Mathematics and Computer Science (UJMC) JTAM (Jurnal Teori dan Aplikasi Matematika) Jurnal Informatika Universitas Pamulang METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi JUMANJI (Jurnal Masyarakat Informatika Unjani) Jurnal Telematika Mathvision : Jurnal Matematika Building of Informatics, Technology and Science Transformasi : Jurnal Pendidikan Matematika dan Matematika Specta Journal of Technology Jurnal Mnemonic Majalah Ilmiah Matematika dan Statistika (MIMS) Dinamika Informatika: Jurnal Ilmiah Teknologi Informasi Insyst : Journal of Intelligent System and Computation JUSTIN (Jurnal Sistem dan Teknologi Informasi) Jurnal Sains dan Teknologi INTERNATIONAL JOURNAL OF MECHANICAL COMPUTATIONAL AND MANUFACTURING RESEARCH Papanda Journal of Mathematics and Sciences Research Jurnal Informatika: Jurnal Pengembangan IT Sains Data Jurnal Studi Matematika dan Teknologi Journal Serambi Engineering (JSE) Indonesian Journal of Mathematics and Natural Sciences
Dian Candra Rini Novitasari
Universitas Islam Negeri Sunan Ampel
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Perbandingan Reduksi Fitur pada Klasifikasi Coronary Artery Disease menggunakan Metode RNN Yana Vita Sari; Aris Fanani; Dian Candra Rini Novitasari
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 16 No. 2 (2025): JURNAL SIMETRIS VOLUME 16 NO 2 TAHUN 2025
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v16i2.12328

Abstract

Coronary Artery Disease (CAD) merupakan kondisi ketika arteri coroner mengalami penyempitan atau penyumbatan yang dapat menjadi pemicu penyakit kardiovaskular dan berujung pada kematian. Oleh karena itu, perlu adanya penanganan yang tepat oleh tenaga medis yang diawali dengan proses diagnosis CAD untuk menilai kesehatan dan kondisi arteri. Diagnosis CAD dapat dilakukan berdasarkan klasifikasi menggunakan metode Recurrent Neural Network (RNN). RNN memiliki kemampuan untuk mempertahankan dan menggunakan informasi sebelumnya dalam pengambilan keputusan. Pada penelitian ini terdapat 30 fitur sehingga dilakukan reduksi fitur untuk meningkatkan kinerja model RNN. Tujuan dari penelitian ini untuk memperoleh model optimal dan mengetahui kefefektifan metode PCA dan ReliefF untuk reduksi fitur pada sistem klasifikasi. Uji coba dilakukan dengan uji coba pembagian data, learning rate, dan node hidden. Model optimum diperoleh pada k-fold 10, node hidden 200, dan learning rate 0.01 pada penggunaan metode ReliefF dengan fitur yang relevan sebanyak 26 diperoleh akurasi 88.42%, sensitivitas 90.82%, dan spesifisitas 86.09%.
Mathematical Modeling and Calculation of Volcanic Ash Dispersion from Mount Lewotobi Using the Gaussian Plume Approach Ivone Lovenia Youvita; Naufal Ridho Maliki; Dian Candra Rini Novitasari
Indonesian Journal of Mathematics and Natural Sciences Vol. 48 No. 2 (2025): Vol. 48 No. 2 (2025): Volume 48 Nomor 2 October 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jm.v48i2.37812

Abstract

The eruption of Mount Lewotobi at the end of 2024 and throughout 2025 caused widespread volcanic ash dispersion and had a significant impact on the socio-economic aspects of the community, including mass evacuations, damage to settlements, transportation disruptions, and airport closures. These problems required scientific modeling that could accurately describe the pattern of ash dispersion. This study uses a quantitative approach through mathematical modeling based on advection equations, the law of mass conservation, and the Gaussian Plume model simulated using MATLAB software. The purpose of this study is to develop a mathematical model to map the direction and pattern of volcanic ash dispersion as a basis for disaster mitigation planning. The simulation results show that volcanic ash tends to spread westward and northwestward following the dominant wind patterns, forming an asymmetrical plume. These findings confirm that mathematical modeling and computer simulation can improve the accuracy of predictions and support the effectiveness of technology-based disaster mitigation strategies. 
Pemodelan Gaussian Plume pada Sebaran Abu Vulkanik sebagai Sistem Peringatan Dini: 177 - 185 Nurul Istiqomah; Fanny Maulidya; Izza Dhinillah; Dian Candra Rini Novitasari
SPECTA Journal of Technology Vol. 10 No. 2 (2026): Specta Journal of Technology
Publisher : LPPM ITK

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Abstract

Indonesia is part of the Pacific Ring of Fire and hosts 129 active volcanoes, including Mount Ibu in Halmahera Regency, North Maluku. Mount Ibu, standing 1,340 meters above sea level, has shown increased volcanic activity since 2008, with 2,136 eruptions recorded up to 2025. This study aims to apply the Gaussian Cloud Model to simulate the distribution of volcanic ash, especially PM10, and map the potential impacts of the eruption of Mount Ibu as part of an early warning system. Data were obtained from PVMBG. The modelling results show that volcanic ash dispersed toward the northwest, reaching a maximum concentration of 2.35 × 10⁻¹⁸⁸ μg/m³. A MATLAB-based Graphical User Interface (GUI) was developed to visualize the ash distribution. The highest concentration occurred around the Talen region, near the eruption source, and gradually decreased in other areas such as Tolofu and Gam Ici due to particle dispersion and dilution. These findings indicate that the proposed model can support early warning systems and contribute to disaster mitigation efforts related to volcanic activity
Prediksi Harga Saham Bank BRI Menggunakan Metode ANFIS dengan Penentuan Input Berbasis ACF dan PACF Adelia Rova Chumairo; Aliya Octavia Ramadhani; Rachma Raudhatul Jannah; Dian Candra Rini Novitasari
Jurnal Informatika: Jurnal Pengembangan IT Vol 11, No 2 (2026)
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/jpit.v11i2.10142

Abstract

Peramalan harga saham merupakan aspek penting dalam mendukung pengambilan keputusan investasi di pasar modal mengingat karakteristik data harga saham yang bersifat dinamis dan berfluktuasi. Penelitian ini bertujuan untuk membangun model prediksi harga saham PT Bank Rakyat Indonesia (Persero) Tbk. menggunakan metode Adaptive Neuro-Fuzzy Inference System (ANFIS) dengan penentuan variabel masukan berdasarkan analisis Autocorrelation Function (ACF) dan Partial Autocorrelation Function (PACF). Data yang digunakan berupa data harga saham harian periode 3 Januari 2022 hingga 27 Oktober 2025. Sebelum proses pemodelan, data dinormalisasi untuk menyamakan skala nilai dan meningkatkan kestabilan proses pembelajaran. Selanjutnya, lag signifikan hasil analisis ACF dan PACF digunakan sebagai input dalam pembentukan dataset supervised learning pada ANFIS. Evaluasi kinerja model dilakukan menggunakan Mean Absolute Percentage Error (MAPE) dengan beberapa variasi learning rate. Hasil penelitian menunjukkan bahwa konfigurasi terbaik diperoleh pada learning rate sebesar 0,01 dengan nilai MAPE pengujian sebesar 1,295085% yang termasuk dalam kategori sangat baik, serta hasil prediksi mampu mengikuti pola data aktual, sehingga metode ANFIS yang dikombinasikan dengan seleksi input berbasis ACF dan PACF dinilai efektif dalam merepresentasikan dinamika pergerakan harga saham.
PEMODELAN BANJIR DI PASTEUR JAWA BARAT MENGGUNAKAN SAINT VENANT EQUATION DENGAN METODE BEDA HINGGA Febriana Eka Adkhaniyah; Nimas Nabila Anggraeni; Dian Candra Rini Novitasari
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 12 No. 2 (2026): Volume 12 Nomor 2 Tahun 2026
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v12i2.5908

Abstract

Floods are natural disasters that often occur in Indonesia. Floods occur due to excessive water flow that inundates an area for a certain period of time. Floods can occur suddenly or gradually at any time, resulting in significant losses. According to the National Disaster Management Agency, from 2022 to 2024, Indonesia experienced 4,026 flood disasters, 699of which occurred in West Java Province. On January 25, 2025, one of the areas in West Java, specifically Pasteur, Bandung, experienced a flood disaster triggered by the suboptimal performance of its drainage system and high rainfall intensity. Therefore, this research conducted flood modeling using the shallow water equation with the finite difference method. The purpose of this research is to minimize losses caused by flood disasters. Based on the research results, the Pasteur area has the potential to experience flooding if it experiences high rainfall intensity, which is also exacerbated by the inadequate drainage system. The modeling results indicate that the depth of the floodwater increased significantly, reaching a maximum depth of approximately 1.3 meters, after which it gradually decreased until it receded in about six hours.
Co-Authors Abdulloh Hamid Abdulloh Hamid Abdulloh Hamid Achmad Fachril Yusuf Ababil Achmad Teguh Wibowo Achsan Afandi Adam Fahmi Khariri Adelia Rova Chumairo Adellia Juni Astine Adyanti, Deasy Ahmad Hanif Asyhar Ahmad Hidayatullah Ahmad Yusuf Ahmad Zoebad Foeady Ahmad Zoebad Foeady Airu Nahdloh Aisyah, Nora Aliya Octavia Ramadhani Alvin Nuralif Ramadanti Amin, Faris Mushlihul Ananda Nur Izza Arifin, Ahmad Zaenal Aris Fanani Ariyanto Wijaya, Indra Ariyanto, Dimas Azmi, Tasya Auliya Ulul Brilian Prilindaputra Cahyani, Nabila Rahma Chalawatul Ais Chandra dewi Damayanti, Adelia Deasy Adyanti Desy Nur Fitriani Dewi Sukmawati, Chandra Dewi, Ratna Cintya Dian Krisnawati Dianita Utami, Wika Dilla Dwi Kartika Dinda Rima Rachcita Putri Diva Ayu Safitri Nur Maghfiroh Elen Riswana Safila Putri Fahriza Novianti Fajar Setiawan Fajar Setiawan Fajar Setiawan Fajar Setiawan FAJAR SETIAWAN Fanny Maulidya Faris Mushlihul Amin Farmita, Mayandah Febriana Eka Adkhaniyah Ferryan, Dhandy Ahmad Firmansjah, Muhammad Fitria, Nur Annisa Foeady, Ahmad Zoebad Galuh Andriani Ganeshar B.D. Prasanda Gita Purnamasari R Hani Khaulasari Hani Khaulasari Hani Khaulasari Hanimatim Mu'jizah Haq, Dina Zatusiva Ifadah, Corii Indriyani, Jiphie Gilia Irkhana Indaka Zulfa Ivone Lovenia Youvita Izza Dhinillah Jauharotul Inayah Jeneiro Maulana Jiphie Gilia Indrayani Kurniawan, Mohammad Lail Kusaeri Lubab, Ahmad Luluk Mahfiroh Lutfi Hakim Lutfi Hakim Lutfi Hakim Lutfi Hakim Luthfi Hakim Luthfi Hakim M. Hasan Bisri Maliki, Naufal Ridho Mardiyah, Ilmiatul Masruroh Kusman, Umi Maulana, Aashif Amiruddin Maulana, Achmad Resnu Maunah Setyawati Maunah Setyawati Moh. Hafiyusholeh Mohammad Rizal Abidin Monika Refiana Nurfadila Muhammad Azhar Muhammad Azhar MUHAMMAD FAHRUR ROZI Muhammad Fahrur Rozi Muhammad Syaifulloh Fattah Muhammad Thohir Musfiroh Musfiroh Musfiroh Musfiroh, Musfiroh Nabila Rahma Cahyani Nanang Widodo Nanang Widodo Nanang Widodo Nanang Widodo Nasroh Khudin Naufal Ridho Maliki Nimas Nabila Anggraeni Nisa Trianifa Novia Adibatus Shofah Noviati Maharani Sunariadi Noviati Maharani Sunariadi Nur Afifah Nur Hidayah Nurissaidah Ulinnuha Nurul Istiqomah Pramesti, Diah Devi Pramono, Wahyu Joko Puspitasari, Wahyu Tri Putri Oktavia, Nabiilah Putri Wulandari Putri, Evi Septya Putroue Keumala Intan Rachma Raudhatul Jannah Rafika Veriani Ramadanti, Alvin Nuralif Ratna Cintya Dewi Ratnasari, Cristanti Dwi RIFA ATUL HASANAH Rifa Atul Hasanah Rozi, Muhammad Fahrur Rozzy, Fahrul Safira, Icha Dwi Sani, Puteri Permata Sari, Firda Yunita Sari, Ghaluh Indah Permata Setiawan, Fajar Shukor Sanim Mohd Fauzi Siti Nur Aisah Siti Nur Fadilah Siti Nur Fadilah Siti Ria Riqmawatin Sukarni, Adinda Ika Sulistiya Nengse Sulistiyawati, Dewi Suwanto Suwanto Suwanto Suwanto Swindiarto, Victory T. Pambudi Syamil Waris Dien Muhammad Syifa Nasiratun Toyibah Syukron Abdul Aziz Tasya Auliya Ulul Azmi Thalia Anindya Ardine Unix Izyah Arfianti USWATUN KHASANAH Utami, Tri Mar'ati Nur Utami, Wika Dianita Utami Dianita Veriani, Rafika Vina Fitriyana Wahyu Ningtiyas Mergianti Wanda N.P. Sunaryo Wijaya, Indra Ariyanto Wika Dianita Utami Wika Dianita Utami Wika Dianita Utami Wika Dianita Utami Wisnawa, Gede Gangga Yana Vita Sari Yasirah Rezqita Aisyah Yasmin Yuliati, Dian Yuliawanti, Felia Dria Yuni Hariningsih Yuniar Farida Yuyun Monita Yuyun Monita Zahroh, Khofifah Auliyatuz Zulfa, Elok Indana Zumrotul Muallifah