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Menampilkan 21–30 dari 4642 artikel
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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Corrosion Inhibition of Mild Steel by Ethanolic Terminalia microcarpa Decne Leaf Extracts in 3.5% NaCl Solution: A Gravimetric and Surface Analysis Studies
Mild steel is widely used but vulnerable to corrosion, with conventional inhibitors posing toxicity risks. This study evaluated the leaf extracts of Terminalia microcarpa Decne, also locally known as kalumpit, as a green corrosion inhibitor for mild steel in a 3.5% NaCl solution. The prepared extracts, characterized by FTIR, were found to contain phytochemicals with inhibition potential. Weight loss measurements showed that inhibition efficiency was concentration-dependent, but was not influence...
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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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Design and Implementation of a Web-Based QR Code Employee Attendance System for Optimizing Attendance Management: A Case Study at Bento and Es Teh Luwes Ungaran
Nufninu, Novinda Grezen
; Rudjiono, Rudjiono
; Panjaitan, Cherlina Helena Purnamasari
; Nufninu, Novinda Grezen
; Rudjiono, Rudjiono
; Panjaitan, Cherlina Helena Purnamasari
Penelitian ini dilatarbelakangi oleh proses absensi karyawan pada Stand Bento dan Stand Es Teh Luwes Ungaran yang masih dilakukan secara manual menggunakan buku absensi. Kondisi tersebut menimbulkan beberapa kendala, seperti kesalahan pencatatan jam masuk dan pulang, risiko kehilangan atau kerusakan data, serta lambatnya proses rekapitulasi laporan kehadiran. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem absensi karyawan berbasis web menggunakan teknologi QR Code guna m...
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Monitoring Sistem Penyiraman Tanaman Otomatis Menggunakan Sensor Kelembapan Berbasis Esp8266 Di Persemaian Rbc Perhutani Bkph Bawang
Ardana , Denny Fachreza
; Setiadi , Teguh
; Muthohir, Moh
; Ardana , Denny Fachreza
; Setiadi , Teguh
; Muthohir, Moh
Perkembangan teknologi mendorong penerapan sistem otomatis dalam bidang pertanian, termasuk pada proses penyiraman tanaman. Kelembapan tanah merupakan faktor penting yang mempengaruhi pertumbuhan tanaman, namun pada Persemaian RBC Perhutani BKPH Bawang, penyiraman masih dilakukan secara manual sehingga berpotensi tidak terkontrol dan menyebabkan kelebihan air. Penelitian ini bertujuan merancang dan mengimplementasikan sistem monitoring serta penyiraman tanaman otomatis berbasis ESP8266 dengan se...
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Ticket Booking Information System at PERUM DAMRI Ende
Bhiju, Gedofrida Ludfina
; Mando, L.B. Finansius
; Sala, Elvira Esperanza
; Bhiju, Gedofrida Ludfina
; Mando, L. B. Finansius
; Sala, Elvira Esperanza
The development of information technology encourages public service agencies to improve the quality of service through the use of integrated information systems. PERUM DAMRI Ende as a provider of passenger transportation services, still faces problems in delivering information on schedules, routes, fares, and vehicle data management that has not been optimally integrated, thus causing uncertainty for service users. This study aims to design and build a Passenger Transport Vehicle Information Sys...
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Implementasi Framework Laravel untuk Pemrosesan Nilai Akademik Berbasis Web Menggunakan Metode Agile
Lestari , Alishya Silva
; Al Amin, Muhammad Abdul Aziz
; Septiani, Alda
; Ferliansyah, Rayhan
; Marsehan, Ahmad
; Lestari , Alishya Silva
; Al Amin, Muhammad Abdul Aziz
; Septiani, Alda
; Ferliansyah, Rayhan
; Marsehan, Ahmad
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 3
, No 1
(2026)
Pengolahan nilai akademik di sekolah dasar masih banyak dilakukan secara manual menggunakan buku nilai atau aplikasi sederhana seperti spreadsheet, sehingga menimbulkan ketidakefisienan, duplikasi data, dan tingginya risiko kesalahan pencatatan. Penelitian ini bertujuan untuk mengembangkan sistem pengolahan nilai akademik berbasis web dengan mengimplementasikan framework Laravel dan metode Agile. Penelitian ini menggunakan pendekatan mixed method, yaitu pengumpulan data kualitatif melalui observ...
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Manfaat Jamur Trichoderma untuk Pertanian dan Peternakan Berkelanjutan pada Kelompok Tani Ngesti Utomo, Desa Purwosari, Kecamatan Wonogiri, Kabupaten Wonogiri
Mulyono, Ali Mursyid Wahyu
; Husein, Muhammad
; Windyasmara, Ludfia
; Wijayanti , Ariyani Wahyu
; Wedaswari , Made
; Nugroho , Aziz Widhi
; Wiraharsanto, Bovi
; Rizkaprilisa, Windy
; Rifzal , Muhammad
This community service activity aims to increase farmers' knowledge and understanding regarding the use of Trichoderma fungi in supporting sustainable agricultural and livestock systems. The extension was carried out at the Ngesti Utomo Farmers Group, Segawe Hamlet, Purwosari Village, Wonogiri District, Wonogiri Regency, with materials covering: (A) the use of Trichoderma in agriculture, (B) livestock, and (C) integrated agricultural-livestock systems. Evaluation was carried out using pre-test a...
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Effect of Freeze-Dried and Oven-Dried Cilembu Sweet Potato Flour on the Antioxidant Activity of Chicken Meatballs.
Putra, Azchar Prianka Piawan
; Sirajuddin, Muhammad Mar'ie
; Malik, Hotlan
; Husein, Muhammad
; Riskayanti, Riskayanti
; Prasetya, Rizki
; Haryati, Stefani Fitri
; Arief, Fitri Armianti
; Dami, Juni Claudia
; Amalia, Ditasari
; Masruri, Alvin
This study evaluated the effect of different dehydration methods, specifically oven drying (60°C) and freeze-drying (-20°C to 65°C), on the antioxidant activity of Cilembu sweet potato (Ipomoea batatas L. Lam) flour and its functional application in chicken meatballs. The antioxidant capacity was measured using the DPPH radical scavenging assay, with results showing that freeze-drying significantly preserved higher levels of bioactive compounds compared to thermal evaporation. Freeze-dried tuber...
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