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All Journal International Journal of Electrical and Computer Engineering Sewagati Jurnal Rekayasa elektrika
Sutrisno, Deyndrawan
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Arts Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Android-based smart digital marketplace application on agricultural commodities using a new variant recommendation system Subiyanto, Subiyanto; Prajanti, Sucihatiningsih Dian Wisika; Salim, Nur Azis; Prabowo, Setya Budi Arif; Sutrisno, Deyndrawan; Anantyo, Andika; Anggriani, Dewi
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i2.pp1968-1977

Abstract

In the marketing of agricultural products, addressing the challenges associated with extensive distribution chains is essential, as these directly affect sellers. Additionally, the vast array of available product options often overwhelms customers, complicating their efforts to identify and purchase items that align with their preferences. This work aims to develop a smart e-commerce application for agribusiness, specifically designed for agricultural products on the Android platform. The application integrates a recommendation system that utilizes geolocation-aware neural graph collaborative filtering (GA-NGCF), which facilitates product marketing for farmers and streamlines the product search and selection process for users based on personalized preferences. The development process encompassed various stages, from planning to rigorous testing. The application’s recommendation system, which implements GA-NGCF, operates based on three primary elements: the creation of a geolocation graph of user-item data, the integration of information between neighboring nodes, and the prediction of user preferences. The resulting smart agribusiness e-commerce application, enhanced by GA-NGCF, demonstrated marked improvements in recommendation accuracy and overall application performance during testing. Empirical results indicated substantial enhancements in recommendation metrics, with GA-NGCF achieving a recall of 0.34, a precision of 0.36, and normalized discounted cumulative gain of 0.37, thereby outperforming existing models.
Robust Stochastic Model Predictive Control for Autonomous Vehicle Motion Planning Subiyanto, Subiyanto; Hangga, Arimaz; Bahatmaka, Aldias; Salim, Nur Azis; Sutrisno, Deyndrawan; Yunus, Elfandy; Budi Arif Prabowo, Setya; Hilmi Farras, Muhammad; Sanggrahita, Diadora
Jurnal Rekayasa Elektrika Vol 20, No 3 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v20i3.39281

Abstract

This work presents a Robust Stochastic Model Predictive Control (RSMPC) framework for real-time motion planning autonomous vehicles, addressing the complex multi-modal vehicle interactions. The proposed framework involves adding expert policy from observations to the dataset and applying the Data Aggregation (DAgger) method to filter unsafe demonstrations and resolve expert conflicts. A Dual-Stage Attention-based Recurrent Neural Network (DA-RNN) model is integrated to predict dual class variables from the dataset, producing a set containing constraints collision-avoidance predicted to be active. The RSMPC framework enhances formulation optimization by eliminating irrelevant collision avoidance constraints, resulting in faster control signals. The framework is applied iteratively, continuously updating observations and solving the RSMPC optimization formulation in real-time. Evaluation of the DA-RNN model achieved a recall value of 0.97 and a high accuracy rate of 98.1% in predicting dual interactions, with a minimal false negative rate of 0.026, highlighting its effectiveness in capturing interaction intricacies. Validated through simulations of interactive traffic intersections, the proposed framework demonstrably excels, showing high feasibility of 99.84% and a 15-fold increase in response speed compared to the baseline. This approach ensures autonomous vehicles navigate safely and efficiently in complex traffic scenarios, paving the way for more reliable and scalable autonomous driving solutions.
Rancang Bangun dan Pelatihan Pembangkit Listrik Tenaga Surya Mini di SMK Muhammadiyah 1 Ngoro untuk Meningkatkan Kesadaran Energi Bersih dan Berkelanjutan Robandi, Imam; Wibowo, Rony Seto; Aryani , Ni Ketut; Prakasa, Mohamad Almas; Djalal, Muhammad Ruswandi; Kurniawan, Itmi Hidayat; Fauzi, Muhammad Alvan; Muzaki, Khafit Imron; Muchyiddin, Moh. Imam; Lazaro, Mussa Julius; Mashiku, Shija Fukku; Sutrisno, Deyndrawan; Widiyawati, Endang; Fabian, Omar; Rochman, Faisal Taufiq; Himawari, Waseda; Rosyid, Alfian Rohman
Sewagati Vol 10 No 2 (2026): pre printed
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v10i2.8958

Abstract

Di Indonesia, kesadaran tentang pemanfaatan energi bersih dan berkelanjutan perlu ditingkatkan, terutama untuk Pembangkit Listrik Tenaga Surya (PLTS) yang memiliki potensi besar, namun tingkat implementasinya masih rendah. Pengenalan PLTS kepada siswa sebagai generasi penerus sangat krusial. SMK Muturojo di Jombang memiliki potensi iradiasi tinggi dan berminat mengembangkan kurikulum PLTS, namun terkendala ketiadaan fasilitas pendukung pembelajaran. Guru SMK Muturojo juga minim pengalaman terkait PLTS, sehingga program PKM berupa rancang bangun dan pelatihan PLTS mini diusulkan. Hasilnya, telah dibangun PLTS mini 300 Wp dengan komponen Solar Charge Controller (SCC) berbasis Maximum Power Point Tracking (MPPT). PLTS mini dilengkapi lampu halogen untuk simulasi iradiasi indoor, serta pelatihan bagi siswa dan guru SMK Muturojo. Hasil pre-post test menunjukkan peningkatan pemahaman sebesar 14,18%, sehingga kegiatan ini berhasil menguatkan kesadaran energi bersih dan berkelanjutan di sekolah tersebut.
Co-Authors Aldias Bahatmaka Anantyo, Andika Anggriani, Dewi Arimaz Hangga, Arimaz Aryani , Ni Ketut Budi Arif Prabowo, Setya Fabian, Omar Fauzi, Muhammad Alvan Hilmi Farras, Muhammad Himawari, Waseda Imam Robandi Itmi Hidayat Kurniawan Lazaro, Mussa Julius Mashiku, Shija Fukku Muchyiddin, Moh. Imam Muhammad Ruswandi Djalal Muzaki, Khafit Imron Prabowo, Setya Budi Arif Prakasa, Mohamad Almas Rochman, Faisal Taufiq Rony Seto Wibowo Rosyid, Alfian Rohman Salim, Nur Azis Sanggrahita, Diadora Sucihatiningsih Dian Wisika Prajanti Widiyawati, Endang Yunus, Elfandy