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Comparative Deep Learning Models for Indonesian Gold Price Forecasting
Putra, Albi Pernata Jomantara
; Williamsyah, Baginda Mi’raj
; Rizal, Achmad
; Dewanta, Favian
; Prasasti, Anggunmeka Luhur
; Ziani, Said
This study evaluates LSTM, CNN-LSTM, LSTM-GRU, and CNN-LSTM-GRU architectures for forecasting Indonesian gold prices using 1,269 daily observations (2022–2025). Models utilized Bayesian-optimized hyperparameters and were benchmarked against ARIMA-GARCH and Random Forest baselines across 30-day and 365-day horizons. Performance was assessed via MAE, RMSE, R², and MAPE, confirming deep learning’s superiority in capturing non-linear dynamics over classical methods. The LSTM-GRU achieved the best nu...
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Digital Lean-Process Framework for Creative-Industry Efficiency (Case: Sipirok, Indonesia)
This study develops a community empowerment model for the creative economy by integrating local wisdom, education, institutional support, and technology while applying Value Stream Mapping (VSM) to reduce process inefficiencies affecting sustainable tourism. The research introduces Lean-based process optimization using engineering metrics such as cycle time, uptime, and defect ratio. Results indicate that Lean interventions reduced cycle time by 25.3%, increased uptime by 6.8%, and decreased wai...
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Comparative Evaluation of Automatic Labeling and Modeling Strategies for Indonesian Sentiment Analysis: Methodology and Performance Evaluation
Latifa, Khoiriya
; Agung Handayanto
; Nur Latifah Dwi M.S
; Rahul Bhandari
; Ton Nguyen Trong Hien
; Doston Pirnazarov
Sentiment analysis is vital for understanding consumer perception, yet Indonesian sentiment classification faces challenges due to labeled data scarcity and computational constraints. This study advances automatic labeling techniques and establishes performance benchmarks for Indonesian text. The research compares two labeling approaches InSet Lexicon and IndoBERT based Hugging Face pipeline on 8,447 Tapera-related opinions. Results show InSet Lexicon produced a highly skewed distribution (89.66...
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Implementation of Project-Based Learning (PjBL) Assisted by Geogebra Application to Improve Students’ Spatial Abilities
The purpose of this study was to determine whether the implementation of the Geogebra-assisted Project Based Learning (PjBL) model has an impact on improving students' spatial abilities or not. Quantitative method with experiments was used in this study. The sample used was class B and C students of Mathematics Education IAIN Kudus class of 2022/2023 who were selected through cluster random sampling techniques. To determine the level of effectiveness, pretest and posttest instruments were given...
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Implementing ‘De KeLuVa’ Media Based on the Tri-N Approach to Improve Cognitive Learning Outcomes of Fourth Grade Elementary Students
Education plays an important role in developing students’ character, intellectual abilities, and problem-solving skills, particularly in mathematics education. However, mathematics learning in elementary schools is often dominated by teacher-centered instruction, resulting in low student engagement and cognitive learning outcomes. Therefore, this study aimed to analyze the implementation of De KeLuVa media based on the Tri-N approach (Niteni, Nirokke, and Nambahi) to improve fourth-grade student...
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Exploring Mathematics Teachers’ Perceptions of ChatGPT for Personalized Learning and Technology Dependence
The development of artificial intelligence, particularly ChatGPT, has begun to influence mathematics learning in classrooms. This technology is not only used as a learning support tool but also affects how teachers teach and how students understand mathematical concepts. This study aims to analyze the effectiveness of ChatGPT in mathematics learning, its benefits and challenges, and the potential for technology dependence based on mathematics teachers’ perspectives. This study employed a System...
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UI/UX Design of a Mobile Application for Shoe Cleaning Service Management Using the Design Thinking Method (Case Study: OurShoes)
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 3
, No 1
(2026)
Pesatnya perkembangan teknologi informasi mendorong terjadinya digitalisasi di berbagai bidang usaha, termasuk pada layanan jasa cuci sepatu. Penggunaan aplikasi mobile menjadi salah satu alternatif untuk meningkatkan kualitas layanan, efisiensi operasional, serta kemudahan akses bagi pelanggan. Namun demikian, keberhasilan sebuah aplikasi tidak hanya bergantung pada fungsi yang dimiliki, tetapi juga pada kualitas desain antarmuka (User Interface/UI) dan pengalaman pengguna (User Experience/UX)...
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Perancangan Sistem Pengelolaan Bank Sampah untuk Skala Komunitas
Ramdani, Cepi
; Athoriq, Alif Yasir
; Wijaya, I Gusti Made Kresna
; Ramdani, Cepi
; Athoriq, Alif Yasir
; Wijaya, I Gusti Made Kresna
Kesadaran dan kepedulian masyarakat terhadap lingkungan telah mendorong munculnya berbagai inisiatif pengelolaan sampah berbasis komunitas, salah satunya melalui mekanisme bank sampah. Namun pada praktiknya, banyak bank sampah masih mengandalkan pencatatan manual yang berpotensi menimbulkan kesalahan pencatatan, duplikasi data, keterlambatan pelaporan, dan kesulitan pelacakan transaksi. Penelitian ini bertujuan untuk mengembangkan sistem digital pengelolaan bank sampah berbasis mobile android de...
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Ventilasi Cerdas Berbasis IoT pada Kandang Brooding Ayam Buras Kelompok Ternak Asri Wijaya
Wakim, Wakim
; Sulartopo, Sulartopo
; Suasana, Iman Saufik
; Wakim, Wakim
; Sulartopo, Sulartopo
; Suasana, Iman Saufik
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 3
, No 1
(2026)
Fase brooding merupakan periode paling krusial dalam siklus hidup unggas yang menentukan keberhasilan performa produksi pada tahap berikutnya. Namun, manajemen lingkungan pada peternakan rakyat, seperti Kelompok Ternak Asri Wijaya, masih menghadapi tantangan besar terkait fluktuasi mikroklimat dan akumulasi gas beracun. Penelitian ini bertujuan untuk mengintegrasikan teknologi Internet of Things (IoT) ke dalam sistem ventilasi guna memitigasi risiko mortalitas akibat tingginya konsentrasi amonia...
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Karakteristik Komite Audit terhadap Kecurangan Laporan Keuangan Perusahaan Properti dan Infrastruktur Indonesia
DHARMA EKONOMI
(2026)
This study aims to investigate the influence of audit committee characteristics—including the proportion of independent audit committee members, audit committee size, and the frequency of audit committee meetings—on the risk of financial statement fraud in companies in the real estate and infrastructure sectors listed on the Indonesia Stock Exchange from 2020 to 2024. This study is grounded in agency theory and signaling theory. The sample was selected using purposive sampling, involving 62 comp...
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