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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi ELECTRANS JMECS (Journal of Measurements, Electronics, Communications, and Systems) Journal of Community Practice and Social Welfare (JaCiPS) Prosiding Konferensi Nasional PKM-CSR Indonesian Journal of Physics (IJP) eProceedings of Engineering Telkatika: Jurnal Telekomunikasi Elektro Komputasi & Informatika Jurnal Nasional Sains dan Teknik
Ig. Prasetya Dwi Wibawa
Universitas Telkom
Humanities Astronomy Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Nursing Public Health Social Sciences Other

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Klasifikasi Kesuburan Tanah Menggunakan Metode Gate Recurrent Unit Ghazali, Arman; Wibawa, Ig. Prasetya Dwi; Rizal, Achmad
Jurnal Nasional SAINS dan TEKNIK Vol. 1 No. 1 (1): December 2023
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jnst.v1i1.6661

Abstract

Tanah merupakan salah satu faktor penting dalam pertumbuhan dan produksi tanaman sayuran. Kualitas tanah yang buruk dapat menghambat pertumbuhan tanaman dan mengurangi hasil panen. Penentuan tingkat kecocokan tanah pada tanaman sayurran biasanya dilakukan dengan cara menganalisis sifat-sifat tanah secara fisika,kimia dan biologi untuk mengetahui kadar unsur hara dalam tanah. Hal ini penting dilakukan karena unsur hara merupakan faktor penting dalam pertumbuhan dan produksi tanaman sayuran. Dengan mengetahui unsur hara dalam tanah, petani dapat melakukan pemupukan dan perawatan tanah yang tepat, sehingga dapat meningkatkan produksi tanaman sayuran Penelitian ini mengenalkan alat untuk mendeteksi kesuburan tanah menggunakan sensor yang telah di koneksikan menggunakan metode GRU (Gate Recurrent Unit). Pada penelitian ini menggunakan 5 kelas tanaman sayuran. Klasifikasi menggunakan arsitektur GRU dengan mengujikan parameter terbaik dengan mengubah parameter seperti epoch, learning rate, batch size dan optimizer. Hasil dari pengujian pada penelitian ini mendapatkan parameter terbaik dan berhasil memprediksikan tanaman sayurran dengan nilai akurasi sebesar 98,80% dan loss sebesar 0,0477.
Evaluating Hierarchical Pathfinding A* (HPA*) for Multi‑Order Routing in a Small Warehouse Layout Wibawa, Ig. Prasetya Dwi; Kallista, Meta; Nugraha, Ramdhan; Widayani, Heni; Bhandari, Harish Chandra; Rusdinar, Angga
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 11, No 1 (2026): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v11i1.39659

Abstract

Hierarchical Pathfinding A* (HPA*) is a hierarchical search framework that partitions grid‑based environments into clusters to reduce computational time while preserving a near-optimal path. The warehouse layout features cross-aisle connectivity, and multi-order optimization is performed using the HPA* algorithm, which integrates travel times with multi-rack picking times to the objective cost function. We simulate by assigning 30 random orders, with a total of 10641 items stored in the warehouse and 10 item types. The travel time is calculated assuming a picker has a constant speed of 1.2 m/s along edges, the picking time is proportional to the number of items picked per rack, and a small warehouse layout. Estimated cycle times of the orders (travel plus picking time) range from 114.4 to 349.9 seconds using the HPA* optimization, with a mean of 232.0 seconds. From the optimization results, orders require an average of 5.2 rack visits, ensuring that the picker travels more than two racks per order. The HPA* reduces the original low‑level graph (50 nodes and 61 edges, including base and stage station) to a graph with 22 nodes and 17 edges, enabling faster route computation while preserving observed cycle‑time patterns when combined with picking-time durations. Compared to A*, given the layout and orders, HPA* demonstrates an efficient warehouse path‑planning method that reduces search computation while maintaining near‑optimal routing performance.
Co-Authors Abdul Latif, Muhammad Achmad Rizal Achmad Rizal Addinul Rafif Nufrinal Aditya, Muhammad Billy Adnanqays G. Riyadhi Adnanqays Graha Riyadhi Agung Surya Wibowo Aina, Brilliant Friezka Akbar, Andi Muhammad Rezky Akbar, Muh. Aldila Ersa Samapta Amanullah Bahtiar, Mohammad Rizky Fauzan An – Nisaa, Siti Andre Suryaputra Angga Rusdinar Asry Fahriza Hani Pinem Bhandari, Harish Chandra Cahyantari Ekaputri Dami Mahardiwana Desri Kristina Silalahi Dhani Eka Putra Subekti Edwar Ekki Kuniawan Ekki Kurniawan Epo Ilham Ajiprasetyo Erwin Susanto Ester Roselin Ambarita Fajar Ridho Wicaksono Fajar Surya Permana Falih Asyrafi Fanio Prambudi Fatanaja Abrar, Hanan Fiky Y. Suratman Fujitson Simamora Ganga Ram Phaijoo Gede Eka Adi Sanjaya Ghazali, Arman Hamiedah, Muthi’ah Atsari Harry Wijaya Fauzi Heni Widayani Hilmy Dzul Faqar Ijon Posmarohatta Sinaga Indra Laksana Irfan Fauzi Aristianto Junartho Halomoan Khalid Irta Tamara Khalisheka, Daffa Asyqar Ahmad Kusumah, Zaky Ibnu Lulu Danisia M. Bayu Oktodwilavito Martuahman, Fransiskus Alexander Meiska, Ivana Meta Kallista Michael Miftah Abdullah Mohamad Ramdhani Mohammad Ramdhani Muh Ichsan Kamil Muhammad Arsil Ghafur Muhammad Iqbal Muhammad Irfaan Hadi Muhammad Reza Elang Erlangga Muhammad Reza Hammady Muhtar, Ahmad Fauzan Mulia, Thasya Naf’an, Syifa Melinda Neina Oktavia Sariningsih Nugroho, Ginaldi Ari Porman Pangaribuan Purnama, Badi Rafli Rizky Putra, Aditiya Nicola Putra, Giovano Trihade Putra, Rio Mandala Nuryan Ramdhan Nugraha Ramdhan, Mohammad Rizki Ramdhani, Agung Sulaksono Rebecca Chittra Widyaparamitha Reza Aristyo Pramudita Rezza Aji Saputra Ria Juliani Dewi Rifki Nurgraha Rio Fernando Rizki Ardianto Priramadhi Sagita, Elvira Saputra , Ariq Nurcahyo Septa Muhammad Rivaldy Sony Sumaryo Sugandi, Delatifa Putri Sukiman, Wahyu Mubarak Wahid, Zulian Wahmisari Priharti Wardhana, I Made Bayu Satria Yasir , Yusran Yusuf Pratama Ari Wiyono Zulaikha Zulaikha Zulfany, Aprilla Nurindah