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Hyperparameter Optimization Of IndoBERT Using Grid Search, Random Search, And Bayesian Optimization In Sentiment Analysis Of E-Government Application Reviews Iskoko, Angga; Tahyudin, Imam; Purwadi, Purwadi
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 5 (2025): JUTIF Volume 6, Number 5, Oktober 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.5.4897

Abstract

User reviews on Google Play Store reflect satisfaction and expectations regarding digital services, including E-Government applications. This study aims to optimize IndoBERT performance in sentiment classification through fine-tuning and hyperparameter exploration using three methods: Grid Search, Random Search, and Bayesian Optimization. Experiments were conducted on Sinaga Mobile app reviews, evaluated using accuracy, precision, recall, F1-score, learning curve, and confusion matrix. The results show that Grid Search with a learning rate of 5e-5 and a batch size of 16 provides the best results, with an accuracy of 90.55%, precision of 91.16%, recall of 90.55%, and F1-score of 89.75%. The learning curve indicates stable training without overfitting. This study provides practical contributions as a guide for improving IndoBERT in Indonesian sentiment analysis and as a foundation for developing NLP-based review monitoring systems to enhance public digital services.
Comparison of Information Technology Governance Maturity Levels Based on COBIT 2019 at PT Kereta Commuter Indonesia in 2023 and 2024 Purwadi, Purwadi; Santoso, Handri
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 5 (2025): JUTIF Volume 6, Number 5, Oktober 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.5.5200

Abstract

This study aims to analyze and compare the maturity level of Information Technology (IT) governance at PT Kereta Commuter Indonesia (KCI) between 2023 and 2024 using the COBIT 2019 framework. The background of this study is based on the operational complexity of KCI which serves a high daily passenger volume, so that the information system becomes the backbone of the smooth transportation service. The method used is a descriptive-comparative case study with a mixed approach, through interviews, Likert scale questionnaires, and internal document reviews such as IT audit reports and government regulations. The results of the analysis show a significant and consistent increase, where the level of IT governance maturity which was previously at level 2 (Managed) and 3 (Defined) in 2023, increased to level 3 and 4 (Quantitatively Managed) in 2024. The most prominent improvements were seen in the strategic domain EDM01 (Ensure Governance Framework Setting) and the operational domain DSS01 (Manage Operations), which successfully reached level 4. This success reflects top management's commitment and ongoing internal evaluation in strengthening IT governance strategically and operationally. The research findings confirm that annual evaluations serve as an objective benchmark for identifying governance gaps, developing digital strategies, and determining future IT investment priorities. Overall, this study confirms that regular assessments can improve the effectiveness of data-driven IT transformation and ensure alignment of IT implementation with the company's business objectives.
Pengukuran Kualitas Aliran Udara Di Atas Landasan Helikopter Bangunan Lepas Pantai Dengan Pemodelan Di Terowongan Angin Purwadi, Purwadi
Semnas Ristek (Seminar Nasional Riset dan Inovasi Teknologi) Vol 4, No 1 (2020): SEMNAS RISTEK 2020
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/semnasristek.v4i1.3735

Abstract

Kondisi dan karakter angin di permukaan landasan helikopter (helipad) sangat penting untuk diketahui khususnya oleh penerbang helikopter yang akan mendarat maupun terbang di atas suatu helipad demi keselamatan penerbanga tersebut. Data karakteristik angin tersebut antara lain adalah tingkat turbulensi, kecepatan angin dan arah angin. Satu pengujian model bangunan lepas pantai jenis Floating Production Unit (FPU) untuk sarana pengolahan minyak dan gas (MIGAS) telah dilakukan di terowongan angin Indonesian Low Speed Tunnel (ILST) BBTA3 BPPT. Pengujian dilakukan dengan memodelkan bangunan lepas pantai tersebut dengan skala 1:250. Model diletakkan di dalam seksi uji ILST yang mempunyai luas penampang 4 m lebar dan 3 m tinggi serta panjang 10 m. Pengukuran tingkat turbulensi, kecepatan dan arah angin di atas helipad dilakukan di 3 ketinggian yang berbeda.
Analisis Pendapatan dan Kelayakan Tumpang Sari Tanaman Kembang Kol dan Cabai Merah di Desa Swarna Dwipa Kecamatan Semende Darat Tengah Kabupaten Muara Enim Harmudin, Gerut; Pusvita, Ema; Purwadi, Purwadi
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 10, No 2 (2024): Juli 2024
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v10i2.14067

Abstract

Agriculture plays an important role in the overall economy of Indonesia. This research examines the income analysis and feasibility of intercropping cauliflower and red chilies in Swarna Dwipa Village, Semende Darat Tengah District, Muara Enim Regency. The research method used is the case study method. Selection criteria for farmers who only use intercropping of cauliflower and red chilies. Data analysis uses data tabulation using income and business feasibility formulas. The results of this research are that the income obtained from intercropping of cauliflower and red chilies is IDR. 431,117,666.67 /ha/MT. Judging from the R/C comparison, intercropping of cauliflower and red chilies is suitable for sustainable cultivation, where the R/C value is 5.36. The BEP value of cauliflower at production costs is IDR 14,925,635/Ha/MT, and red chilies at a production cost of IDR 83,956,698/Ha/MT. Meanwhile, BEP production for each commodity is 1,866 kg/MT. The factors of land area, production quantity, selling price and place of sale influence the income and feasibility of intercropping farming.
Co-Authors A, Argananta Sakha Abdurrahman, Zakaria Husein Abu, Nor Azman Adang Sutisna Adhi Pertiwi, Asih Adi Suhendra, Adi Adnan, Achmad Agung Prasetyo Agus Suharno Agus Supriyanto Agus wiyanto Ahmad, Asmala Alfan Muttaqin, Alfan Ameliah, Melsi Amien Wahyudi Amin, Yuliana Fitri Amir, Muhammad Taufiq Ardiansyah Andari, Tania Andhika, Yosua Angelia, Annisa Anita Chandra Dewi Sagala, Anita Chandra Dewi Anugerah Yuka Asmara Anwar Sutoyo Arief Wibowo Arif Budi Prasetya Arios, Junior Kevin Aris Budi Prasetyo Aswindra, Jordy Stephano Azanda, Siti Hanifa Azizah Azizah Bagoes Hendrawan, Juve Baharudin, Rismayada Barsei, Adhityo Nugraha Budi, Guntur Setyo Budiarti, Menik Caisar Darma, Dio Catur Setiya Sulistiyana Darma, Dio Dauni, Popon Dedes Amertaningtyas Deni Suprihadi Devitasari , Bella Dewi, Tyass Puspita Dicky Nofriansyah Dinaseviani, Anggini Djalal Rosyidi Donny Anhar Fahmi Dwi Fatmawati, Dwi Dwi Prasetiyawati D.H. Dwiridhotjahjono, Jojo Dwiyanti, Maftuah Agus Ekawati Danial Elsanadia, Oktolita Endang Lastinawati, Endang Eudia Christina Wulandari Fahrani, Novi Savarianti Faisal Sunarto, Faisal Fani Ardiani Faradiba, Nadya Farikha, Aniq Fauziah, Mufied Fazira, Siti Nur Firman Jaya Firmansyah, Erick Fuadil Aliya, Khairul Githa Noviana Gribaldi Gribaldi Gultom, Dotcus Hadisaputra, Tomo Halomoan, Yosua Andhika Haninah, Mudi Hardi Prasetiawan, Hardi Harefa, Herman Yaarozatulo Hariono, Desrian Hariyadi, Farah Hariyanti, Dwi Prasetiyawati Diyah Harmudin, Gerut Haryadi, Tri Hassan Faiz Heni Haryani Herdiansyah, Diki Herlambang, Purnomo Hidayah, Adam Hidayat, Bachtari Alam Husnul Hadi Husnul Khotimah Rustam Ibnu Fatkhu Royana Idum Satia Santi Imam Radianto Anwar Setia Putra, Imam Radianto Anwar Setia Imam Santoso Imam Tahyudin Imam Thohari Indarti, Dian Martha Ini, Dwi Anggra Intan Rahmawati Intan Shaferi, Intan Irman Hariman Irvan Budhi Handaka, Irvan Budhi IRWANSYAH Irwansyah Irwansyah Ishafit Ishafit Iskoko, Angga Ismatul Khasanah Iswan, Mochammad Jayanthi, Ria Jayawarsa, A.A. Ketut Jentot Tugiyono kamil erwansyah Kurniawan, E. Dody Kusnasari, Sri Kusuma, Bagus Adhi Kusumaningsih, Karti Rahayu Kusumawardhani, Dhian Lestari, Windi Leydi Silvana, Leydi Lilik Eka Radiati Lumban Gaol, Nur Yanti Lutfi Fitriano, Lutfi M S Rifki, M S M. Kristanto Maharani, Desvita Putri Mahdi, Muhammad Alwan Mariami, Ita Maroeto Maroeto Mas?ut, Bilal lutfi Mas’ut, Bilal lutfi Masbiran, Vivi Ukhwatul Meddy, Delfindo Putra Mei Fita Asri Untari Mendrofa, Nathanael Dean Putra Mila Karmila Moch. Arifin Mohd, Othman Monica, Santa Muchlis Dwi Prasetiyo, Muchlis Dwi Mudzanatun Mudzanatun Muh. Isna Nurdin Wibisana MUHAMMAD ABDUL GHOFUR Muhammad Indika Fathiras Azhami, Muhammad Indika Fathiras Azhami Muhammad Rohmadi Mulawarman Mulawarman Muliasari Pinilih, Muliasari mungin eddy wibowo, mungin eddy Muyana, Siti Nabila, Hurin Nailussa'adah, Fina Nila Kusumaningtyas, Nila Nina Widyawati, Nina Nugraha, Amalia Nugroho, Agung Nugroho, Arif Djoko Nugrono, Sigit Dwi Nurdianto, Mohammad Nurdin, Ade Akhyar Nurhidayat, Ardi Nurhuda Firmansyah Nurjanah, Danik Nurlaili Nurlaili Nurlita Hendiani NURUL HIDAYAH Octaviani Tinarda, Dinda Oktaviani, Feny Oscar Hadikaryana Pandu Kresnapati, Pandu Pane, Usti Fatimah Sari Sitorus Perdana, Stevand Putra Perlita, Sabrina Permana, Budi Pradana, Aditya Wisnu Prameswari, Anindya Hayu Pranasari, Melati Ayuning Prasena Arisyanto Prasetyo, Aris Budi Pratama, Meylano Novi Pratiwi, Andini Prawesti, Yuniar Priani, Pri Okta Priomojo, Moch Tirta Ageng Bambang Priyadarshini, Rossyda Purba, Rafilayani Purnomo Edi Sasongko Pusvita, Ema Putri Ayu Ogari, Putri Ayu Putri, Peggy Rahmawati Putri, Piranti Herdaning Putriyani, Marsella R.Lisye Herlina Rahmat Hidayat Rajagukguk, Santo Paulus Ramadhan, Agus Ramadhan, Arif Ramadhan, Puji Sari Ramdan Hidayat Rashif Hamzah, Hifzan Reghita, Nabila Pramesthi Salma Reza Nugraha, Reza Rindiyani, Syafira Riris Setyo Sundari Rofingi, Mutiara ROHMAN, FATKUR Rosidah Rosidah Rosmawati, Henny RUBYATUN, RIZA Rudiyono, Denny Sa'diyah, Ummi Nur Halimatus Sabtohadi, Joko Safira, Evi Maya Said Alhadi, Said Sain, Juwita Anggraini Sakalena, Firnawati Salwa, Ananda Lydia Putri Santoso, Handri Saputra, Doris Saputra, Rahmat Ponco Adi Sari, Dewiarum Sari, Norma Ika Sari, Risda Novita Sastya, Yessy Sejati, Maulita Nur Selviana Lestari, Sri Septianita, Septianita Setini, Made Setiowiji Handoyo Setyawan Widyarto Setyawan, Danang Aji Setyowati, Aprilia Simandjorang, Bonataon Maruli Timothy Vincent Siti Asmaul Mustaniroh Siwi Istiana Dinarti, Siwi Istiana Sobirin Sobirin Suci Emilia Fitri Sugeng Wahyudiono, Sugeng Suhardi Suhardi Suharsimi Arikunto Suhartati, Tatik Suharyanto Sulistiara, Dita Alya Sulistyawan, Catur sumardin, sumardin Suyono Suyono Syah, Robby Firman Syaiful Arif Syaiful Bakhri Tini Apriani, Tini Tri Handoko Seto, Tri Handoko Tri Jalmo TRI JAMLO Triawan, Puas TUBAGUS HERLAMBANG, TUBAGUS Tukiran Surbakti Tukiyat Tukiyat, Tukiyat Utvi Hinda Zahnnisa Wahid Akbar Basudani Wahid Nashihuddin Wahyu Nanda Eka Saputra, Wahyu Nanda Eka Wanti Mindari Warkianto Widjaya Wibisana, Muh Isna Nurdin Widyantoro, Arief Wijaya, Kemal Wilantika, Rima Winata, Hendryan Witra Apdhi Yohanitas Wiyanjana, Mahanani Ilham Denta Y, Syaharuddin Y Yakub, Suardi Yani Yani Yudanto, Satyo Yuniar Wardani Yuniasih, Betti Zulkifli Ahmad Zulkifli Lubis