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Perbandingan Algoritma C4.5, Naive Bayes, dan K- Nearest Neighbors untuk Prediksi Penyakit Jantung Tuloli, Mohamad Syafri; Kinanti, Titin Seh; Amali, Lanto Ningrayati
Jambura Journal of Informatics VOL 7, N0 1: APRIL 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jji.v1i1.31158

Abstract

Heart disease is one of the leading causes of death worldwide, making early detection crucial to reducing fatality risks. This study aims to compare the performance of three classification algorithms, namely C4.5, Naïve Bayes, and K-Nearest Neighbors (KNN), in predicting heart disease. The Heart Failure Prediction Dataset is obtained from Kaggle and the UCI Repository, comprising 1,211 patient records. After preprocessing, the data was split into training and testing sets with a 70:30 ratio. Model performance was evaluated using accuracy, precision, and recall metrics based on the confusion matrix. The results indicate that the C4.5 algorithm achieved the best performance with an accuracy of 81.07%, outperforming Naïve Bayes (79.10%) and KNN (75.68%). C4.5 also demonstrated a higher recall rate in detecting positive heart disease cases, suggesting its effectiveness in handling clinical datasets with characteristics similar to those used in this study. The main contribution of this research is providing a recommendation for utilizing the C4.5 algorithm in developing decision support systems for early heart disease detection. These findings are expected to help improve early diagnostic accuracy and support faster and more accurate medical decision-making.Penyakit jantung merupakan salah satu penyebab utama kematian di dunia, sehingga deteksi dini menjadi sangat penting untuk mengurangi risiko fatalitas. Penelitian ini bertujuan membandingkan kinerja tiga algoritma klasifikasi, yaitu C4.5, Naïve Bayes, dan K-Nearest Neighbors (KNN), dalam memprediksi penyakit jantung. Dataset yang digunakan adalah Heart Failure Prediction Dataset yang diperoleh dari Kaggle dan UCI Repository, dengan total 1211 data pasien. Setelah dilakukan preprocessing, data dibagi dengan rasio 70:30 untuk pelatihan dan pengujian. Evaluasi kinerja model dilakukan menggunakan metrik akurasi, presisi, dan recall berbasis confusion matrix. Hasil penelitian menunjukkan bahwa algoritma C4.5 memiliki performa terbaik dengan akurasi 81,07%, mengungguli Naïve Bayes (79,10%) dan KNN (75,68%). C4.5 juga menunjukkan nilai recall yang lebih tinggi dalam mendeteksi kasus positif penyakit jantung, mengindikasikan efektivitasnya dalam menangani data dengan karakteristik klinis seperti dataset yang digunakan. Kontribusi utama penelitian ini adalah memberikan rekomendasi pemanfaatan algoritma C4.5 dalam pengembangan sistem pendukung keputusan untuk deteksi dini penyakit jantung. Temuan ini diharapkan dapat membantu meningkatkan akurasi diagnosis awal dan mendukung pengambilan keputusan medis secara lebih cepat dan tepat
Pengembangan Infrastruktur Digital Desa Edu-Geowisata Oluhuta Menggunakan Mobile App Marketing Berbasis Progresive Web App Hamdata, Ayub; Amali, Lanto Ningrayati; Yusuf, Rampi
Diffusion: Journal of Systems and Information Technology Vol 5, No 1 (2025): January 2025
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/diffusion.v5i1.27818

Abstract

Untuk menunjang proses pertukaran informasi yang cepat dan tepat dalam mendukung perkembangan industri pariwisata berbasis edukasi geowisata, diperlukan sarana digital yang dapat mempromosikan dan memasarkan objek wisata secara lebih ikonik. Salah satu teknologi yang digunakan oleh wisatawan Desa Oluhuta adalah Mobile App Marketing “Oluhuta Journey” berbasis progressive web app. Aplikasi ini memiliki fitur-fitur menarik dan mudah diakses, namun masih memerlukan peningkatan, terutama pada fitur warung digital, snorkeling, dan camping yang belum mendukung transaksi online. Selain itu, informasi edukasi tentang wisata Oluhuta masih terbatas, sehingga perlu dibuat media alternatif untuk meningkatkan jangkauan promosi, terutama mengingat target pasar bukan hanya wisatawan domestik, tetapi juga mancanegara. Penelitian ini bertujuan untuk mengembangkan Mobile App Marketing “Oluhuta Journey” sebagai bagian dari pengembangan infrastruktur digital Desa Edu-Geowisata Oluhuta berbasis progressive web apps. Metode yang digunakan adalah metode prototipe, yang memungkinkan penyempurnaan sistem berdasarkan umpan balik pengguna.Diharapkan aplikasi berbasis progressive web app ini dapat berkontribusi secara signifikan terhadap peningkatan pendapatan masyarakat lokal. Selain itu, aplikasi ini mempermudah wisatawan dalam mengakses informasi tentang objek wisata dan layanan yang tersedia. Dengan demikian, pengembangan aplikasi ini diharapkan dapat meningkatkan jumlah kunjungan wisatawan serta meningkatkan tingkat kepuasan pengunjung.
Pemanfaatan Platform Digital dalam Pemasaran Produk UMKM Desa: Strategi Membangun Desa Mandiri dan Berkelanjutan Amali, Lanto Ningrayati; Katili, Muhammad Rifai; Lahay, Sri Nilawaty; Bau, Rahmat Taufik
Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Vol 14, No 2 (2025): Jurnal Sibermas (Sinergi Bersama Masyarakat)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/sibermas.v14i2.32816

Abstract

Pemanfaatan platform digital dalam pemasaran produk UMKM merupakan strategi penting untuk mendukung pengembangan desa mandiri dan berkelanjutan. Studi kasus di Desa Tabongo Timur, Kabupaten Gorontalo, menunjukkan bahwa meskipun memiliki potensi ekonomi lokal yang besar melalui produk unggulan seperti minyak Sacha Inchi (Sachita), UMKM di desa ini masih menghadapi tantangan dalam hal akses pasar, promosi, dan infrastruktur distribusi. Melalui program pendampingan dan pelatihan digitalisasi pemasaran, masyarakat diberikan pembelajaran tentang penggunaan media sosial, marketplace, serta pembuatan website sebagai sarana promosi dan penjualan produk. Hasil menunjukkan adanya peningkatan signifikan dalam literasi digital pelaku UMKM, dengan 80% menyatakan kemampuannya dalam menggunakan platform digital meningkat. Selain itu, pengembangan platform digital terintegrasi berupa website khusus telah memperluas jangkauan pasar produk UMKM. Platform ini juga berhasil meningkatkan omzet penjualan dan memperkuat branding produk melalui konten visual menarik dan deskripsi informatif. Meskipun masih ada tantangan seperti keterbatasan infrastruktur internet, implementasi platform digital di Desa Tabongo Timur membuktikan bahwa transformasi digital adalah langkah strategis dalam membangun ekonomi desa yang inklusif, produktif, dan berkelanjutan.
Mendirikan Ekosistem Pangan Desa: Sinergi BUMDesa, Pemetaan Potensi, dan Platform Digital Katili, Muhammad Rifai; Yahya, Lailany; Tuloli, Mohamad Syafri; Amali, Lanto Ningrayati
Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Vol 14, No 3 (2025): Jurnal Sibermas (Sinergi Bersama Masyarakat)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/sibermas.v14i3.34579

Abstract

This community service program aimed to strengthen the role of Village-Owned Enterprises (BUMDesa) in enhancing food security based on local potential in Panggulo Village, Botupingge District, Bone Bolango Regency. Key challenges included the inactive status of BUMDesa, limited public awareness of food security, lack of local potential mapping, and the absence of digital platforms for product promotion. The program was implemented through a participatory, asset-based approach in five stages: problem identification, potential mapping, training, digitalization, and mentoring. Results showed significant improvements in BUMDesa management capacity, the development of two flagship local food products, the launch of a village website, and increased community awareness. The program demonstrated that integrating institutional strengthening, community empowerment, and digitalization is an effective strategy for developing sustainable village-level food security systems.
Evaluasi Kualitas Sistem Informasi Akademik Terpadu (SIAT) Menggunakan ISO/IEC 25010 Nambo, Ilun; Pakaya, Nikmasari; Amali, Lanto Ningrayati; Olii, Salahudin
Jambura Journal of Informatics VOL 7, N0 2: OKTOBER 2025 (IN PRESS)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jji.v1i2.33720

Abstract

The Integrated Academic Information System (SIAT) at Universitas Negeri Gorontalo has been widely used to support academic activities, but issues such as slow performance under heavy load, data security risks, and inconsistent interface design remain. Previous studies on academic information systems often focus on limited quality aspects or rely on single evaluation tools, leaving a research gap in providing a comprehensive quality assessment. This study aims to evaluate SIAT using the ISO/IEC 25010 standard with multi-tool approach, offering a replicable framework for system evaluation across higher education institutions. A quantitative descriptive method was applied, combining expert judgment for Functional Suitability, GTMetrix for Performance Efficiency, PowerMapper for Compatibility, SUS for Usability (30 respondents), WAPT for Reliability, Acunetix for Security, Land’s instrument for Maintainability, and cross-device/browser testing for Portability. The results show high scores in Functional Suitability (97.3%), Performance Efficiency (95.4%), Reliability (99.6%), and Portability (100%). Usability scored 68 (marginally acceptable), while Security revealed severe vulnerabilities, and Maintainability was hindered by interface inconsistencies and lack of formal testing. This research not only to evaluating SIAT but also to introducing a replicable multi-tool evaluation framework based on ISO/IEC 25010, which can inform improvements in similar systems at other universities.Sistem Informasi Akademik Terpadu (SIAT) di Universitas Negeri Gorontalo telah digunakan untuk mendukung aktivitas akademik, namun masih menghadapi masalah seperti kinerja yang lambat pada beban tinggi, kerentanan keamanan, dan inkonsistensi antarmuka. Penelitian sebelumnya umumnya hanya menilai sebagian aspek kualitas atau menggunakan satu alat uji, sehingga menimbulkan kesenjangan penelitian dalam penyediaan evaluasi kualitas yang menyeluruh. Penelitian ini bertujuan mengevaluasi SIAT berdasarkan standar ISO/IEC 25010 dengan pendekatan multi-tool, serta menawarkan kerangka evaluasi yang dapat direplikasi untuk sistem serupa di perguruan tinggi lain. Metode yang digunakan adalah kuantitatif deskriptif dengan kombinasi berbagai instrumen: penilaian ahli untuk Functional Suitability, GTMetrix untuk Performance Efficiency, PowerMapper untuk Compatibility, SUS untuk Usability (30 responden), WAPT untuk Reliability, Acunetix untuk Security, instrumen Land untuk Maintainability, serta pengujian lintas perangkat/browser untuk Portability. Hasil penelitian menunjukkan SIAT unggul pada Functional Suitability (97,3%), Performance Efficiency (95,4%), Reliability (99,6%), dan Portability (100%). Usability memperoleh skor 68 (cukup), sementara Security menunjukkan kerentanan tinggi, dan Maintainability masih terbatas karena inkonsistensi tampilan serta belum adanya pengujian formal. Penelitian ini tidak hanya dalam evaluasi SIAT, tetapi juga melalui pengusulan kerangka evaluasi multi-tool berbasis ISO/IEC 25010 yang dapat direplikasi dan bermanfaat untuk peningkatan sistem informasi akademik di universitas lain.
Edukasi Lingkungan dan Pelatihan Pengolahan Sampah Plastik Pada Program KKN Infrastruktur di Desa Sukamaju Hasdiana, Hasdiana; Amali, Lanto Ningrayati; Sudana, I Wayan
Journal Of Human And Education (JAHE) Vol. 4 No. 6 (2024): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i6.1996

Abstract

Potensi timbunan sampah yang dihasilkan di Provinsi Gorontalo sebesar ‎‎246.397,112 ton‎. Sumber sampah yang paling dominan berasal dari rumah tangga (48%), dari ‎pasar tradisional 24% dan 9% berasal dari kawasan komersial.‎ Pengelolaan sampah di kawasan permukiman dan perumahan yang tidak dilakukan secara bijak dan berkelanjutan akan berdampak pada penurunan kualitas permukiman. Hal ini akan memberikan dampak jangka panjang terhadap masyarakat yang bermukim pada kawasan tersebut seperti terganggunya kesehatan, pencemaran lingkungan (tanah, air dan udara), kenyamanan masyarakat berkurang, dan terjadi kekumuhan. Oleh karena itu perlu dilaksanakan program pengabdian masyarakat melalui KKN Infrastruktur Permukiman yang bertujuan untuk menciptakan permukiman berkualitas melalui pengelolaan sampah berkelanjutan, ‎diharapkan menjadi solusi alternatif yang ditawarkan untuk atasi ‎permasalahan permukiman khususnya pada kawasan permukiman kumuh ‎maupun yang kawasan permukiman berpotensi kumuh.‎ Desa ini memiliki salah satu permasalahan permukiman yaitu pengelolaan sampah yang tidak berkelanjutan sehingga berdampak buruk pada ekosistem di sekitarnya.
Technology Acceptance Model in Government Context: A Systematic Review on the Implementation of IT Governance in a Government Institution Amali, Lanto Ningrayati; Katili, Muhammad Rifai; Suhada, Sitti; Hadjaratie, Lillyan; Mardlatillah, Hanifah
JOIN (Jurnal Online Informatika) Vol 7 No 1 (2022)
Publisher : Department of Informatics, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/join.v7i1.853

Abstract

Recent trends of studies on technology acceptance in local government had recently been popular; the studies focused on identifying the predictors of human behavior in potential acceptance or rejection of technology. This study investigated the use of information technology/information system (henceforth, IT/IS) acceptance in government as a means to improve the quality of public service and strive for transparent governance. A mixed-methods (quantitative and qualitative) study was conducted, and data were collected through questionnaires involving 125 respondents, interviews, and observations. Technology Acceptance Model (TAM) is used as a theoretical framework for behavioral information systems and Smart Partial least square (Smart PLS) analysis was employed in elaborating the complex correlation between the determinants. The result showed that the perceived ease-of-use (PEOU) contributed positively to the perceived usefulness (PU) and attitude towards using technology (ATUT). Moreover, the ATUT significantly contributed to Behavioral Intention of Use (BITU); further, the BITU also contributed to actual technology use (ATU). The PU, however, possessed a negative impact on the ATUT. These results further the information regarding the quality and performance of IT/IS services that can be used as a basis for higher-level decision-making.
Pengelolaan dan Manajemen Usaha Produk UMKM menuju Kemandirian Ekonomi Masyarakat Desa Katili, Muhammad Rifai; Lahay, Sri Nilawati; Amali, Lanto Ningrayati
El-Mujtama: Jurnal Pengabdian Masyarakat  Vol. 4 No. 2 (2024): El-Mujtama: Jurnal Pengabdian Masyarakat
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmujtama.v4i2.817

Abstract

The guidance and development of Micro, Small, and Medium Enterprises (MSME) is an effort by the government, academia, business world, and community. The goal is to realize an economically independent village that upholds the local wisdom of the community as an active participatory actor in the management of MSME product businesses with specific targets are: (1) increasing community business awareness through socialization and training on the management of MSME products in rural communities; (2) the realization of the management of MSME product businesses and product marketing of MSME actors; and (3) the realization of household businesses that managed independently. This activity method is a workshop method in the form of training and assistance to the community through intensive training on the management of MSME product businesses to achieve all expected targets and outputs through the implementation of Thematic KKN activities. This activity results in increase in the understanding and involvement of MSME business actors by promoting, improving administration, improving product packaging, and selling online. In addition, MSME business actors can learn how to manage a good business to improve the economy of the MSME business community.
Implementation of Android-Based Learning Media on Temperature and Heat Materials to Enhance Student Motivation and Learning Outcomes in Senior High Schools Ntobuo, Nova Elysia; Amali, Lanto Ningrayati; Amali, Lanto Mohamad Kamil; Katili, Nancy
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4063

Abstract

This study aims to enhance the motivation and learning outcomes of high school students at SMA Negeri 7 Gorontalo for the 2022/2023 Academic Year through implementing android-based learning media on temperature and heat materials. The research method is a quasi-experimental design with a one-group pretest-posttest research design. The research sample consisted of 3 classes: class X IPA 2 as the experiment class and class X IPA 3, and X IPA 4 as a replica class. This research begins with preparing learning tools to implement learning media based on Android material on temperature and heat. The results of the validation show that the learning tools are valid and can be used in the learning process. Implementing the learning process in this study is in the very good category. It can increase student motivation and learning outcomes, where the N-Gain scores for the experimental and replica classes are in the high category.
Effect of the Android-Based e-LabVir Application on Learning Independence and Science Learning Effectiveness of Generation Z Students in Dynamic Electricity Material Ntobuo*, Nova Elysia; Amali, Lanto Mohamad Kamil; Amali, Lanto Ningrayati; Payu, Citron; Hermanto, I Made; Samatowa, Lukman; Ratha, Doung
Jurnal Pendidikan Sains Indonesia Vol 13, No 4 (2025): OCTOBER 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v13i4.48975

Abstract

In an ideal school, laboratories are an integral part. However, not all schools in Indonesia have adequate laboratories, or even laboratory space. One alternative is to utilize virtual laboratories. Utilization of virtual laboratories is a viable and efficacious approach for practicum implementation, offering a potential solution to the constraints associated with laboratory equipment. However, the majority of virtual laboratories are not compatible with android devices due to the size of the data required to download the necessary applications. Furthermore, there is a paucity of android-based virtual laboratories, and even those that exist often require internet data during operation. In light of the aforementioned considerations, the objective of this research is to develop an android-based virtual laboratory learning media. This research employs the ADDIE development method to create an android-based virtual laboratory that utilizes minimal internet data, with the majority of data being used only during the installation process. Once the application is installed, the virtual laboratory can be utilized without requiring an internet connection. The findings indicated that the virtual laboratory met the standards of validity as determined by expert evaluation. Moreover, preliminary trials conducted with 24 students at SMP Negeri 2 Gorontalo revealed that 83% of students provided highly positive feedback, while 17% offered positive responses. Additionally, the findings indicated that students exhibited commendable autonomy in their learning process when utilizing an android-based virtual laboratory
Co-Authors Abdul Aziz Bouty Agus Lahinta Ahmad Azhar Kadim Alfian Zakaria Antula, Nur Savira Anwar, Ridha Alvariza Arip Mulyanto Awaludin Madjidu Dadi, Heru Hartato Dai, Roviana H. Diko, Yulianti Dwinanto, Arif Edi Setiawan Erni Mohamad Femy Mahmud Sahami Fikran Mahmud Gani, Hilmansyah Gede Sandika, I Wayan Gede Sandika Gelo, Siti Zalyah Halid, Rahayu Hamdata, Ayub Hamlina, Robin Y. Hanifah Mardlatillah Harto Malik Hasan S. Panigoro hasdiana, hasdiana Hunta, Aprilia M I Made Hermanto I Wayan Gede Sandika I Wayan Gede Sandika I Wayan Sudana Imam B. Buke Indhitya R Padiku Ishak Isa Jawa, Agnes Wuda Jemmy A Pakaya Karim Bahu Kilo, Juriah R. Kinanti, Titin Seh Lahay, Sri Nilawati Lahay, Sri Nilawaty Lailany Yahya Lamatenggo, Nina Lanto Miriatin Amali Lanto Mohamad Kamil Amali Lillyan Hadjaratie M Munir M. Mahmuddin Malapu, Nayla Yuniar mamonto, fara humaira Manda Rohandi Mardlatillah, Hanifah Maryam Rahim Masloman, Alwiansyah Mazida Ahmad Moh Ramdhan Arif Kaluku Moh. Fadel Dengo Moh. Zulkifli Katili Mohammad Rifai Sali mohammad syafri tuloli Mokodompit, Nuris Salikin Mongilong, Mohammad Farhan Muchlis Polin Muhammad Ilham Akbar Muhammad Rifai Katili Mukhlisulfatih Latief Musa, Viviwidyawati A Nambo, Ilun Nancy Katili Nikmasari Pakaya Nova Elysia Ntobuo Ntobuo*, Nova Elysia Nurtianingrat Zees Pakaya, Nikmasari Pala, Nisya Fiscadilla Payu, Citron Rahman Takdir Rahmat Taufik R.L Bau Ramang H. Yusuf Rampi Yusuf Rasim, R Ratha, Doung Rian Sulistio Rifadli Bahsuan Rochmat Mohammad Thohir Yassin Rolinsa Madina, Novita Rustam I. Husain Salahudin Olii Sali, Mohammad Rifai Samatowa, Lukman Setiawan, Zahrul Siti Aisa Liputo Sitti Suhada Sri Ayu Ashari Sri Nila Lahay Sudirman, Randi Sugeha, Alif Perdana Suma, Mahmud Sunardi Sunardi Sunarty Suly Eraku Suwandi, Ihsanulfu'ad Tajuddin Abdillah Thohir Yassin, Rochmat Mohammad Tri Alfandra Labuga Umar Sako, Umar Usup, Rima Melati Wandi Ismail Wibowo, Sela Febrianti Wihardi, Yaya Wiki Aji Putra Pena Wirahman Salsabil Husain Yahya, Abdurrafi Yogi Septiawan Nauko Yuszda K Salimi