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All Journal Jurnal Ilmu Komputer dan Informasi Transmisi: Jurnal Ilmiah Teknik Elektro Techno.Com: Jurnal Teknologi Informasi Abdimas Jurnal Kompetensi Teknik Jurnal Teknik Elektro Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi International Journal of Advances in Intelligent Informatics ELINVO (Electronics, Informatics, and Vocational Education) Emitor: Jurnal Teknik Elektro Edu Elektrika Journal Edu Komputika Journal Sistemasi: Jurnal Sistem Informasi International Journal of Artificial Intelligence Research Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Jurnal Pengabdian kepada Masyarakat Nusantara Journal of Electrical Engineering and Computer (JEECOM) Journal Social Science And Technology For Community Service JUSTIN (Jurnal Sistem dan Teknologi Informasi) Jurnal Pengabdian Mandiri Proceeding of International Conference on Science, Education, and Technology STATISTIKA Jurnal Penelitian Pendidikan International Journal of Active Learning Edu Komputika Journal Journal of Vocational and Career Education Edu Elektrika Journal
Ulfah Mediaty Arief
Universitas Negeri Semarang
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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A Modified Meta-Heuristic Approach for Vehicle Routing Problem with Simultaneous Pickup and Delivery Faiz, Alfian; Subiyanto, Subiyanto; Arief, Ulfah Mediaty
International Journal of Artificial Intelligence Research Vol 2, No 2 (2018): December 2018
Publisher : Universitas Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.717 KB) | DOI: 10.29099/ijair.v2i2.71

Abstract

The aim of this work is to develop an intelligent optimization software based on enhanced VNS meta-heuristic to tackle Vehicle Routing Problem with Simultaneous Pickup and Delivery (VRPSPD). An optimization system developed based on enhanced Variable Neighborhood Search with Perturbation Mechanism and Adaptive Selection Mechanism as the simple but effective optimization approach presented in this work. The solution method composed by combining Perturbation based Variable Neighborhood Search (PVNS) with Adaptive Selection  Mechanism (ASM) to control perturbation scheme. Instead of stochastic approach, selection of perturbation scheme used in the algorithm employed an empirical selection based on each perturbation scheme success along the search. The ASM help algorithm to get more diversification degree and jumping from local optimum condition using most successful perturbation scheme empirically in the search process. A comparative analysis with a well-known exact approach is presented to test the solution method in a generated VRPSPD benchmark instance in limited computation time. Then a test to VRPSPD scenario provided by a liquefied petroleum gas distribution company is performed. The test result confirms that solution method present superior performance against exact approach solution in giving best solution for larger sized instance and successfully obtain substantial improvements when compared to the basic VNS and original route planning technique used by a distributor company.
Pelatihan Teknologi Internet of Things dalam Pembelajaran Bidang Ilmu Mekatronika untuk Guru di SMK Negeri 3 Salatiga Arief, Ulfah Mediaty
Journal of Social Sciences and Technology for Community Service (JSSTCS) Vol 5, No 1 (2024): Volume 5, Nomor 1, March 2024
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jsstcs.v5i1.3968

Abstract

Sejalan dengan visi SMK Pusat Keunggulan yaitu menggerakkan sekolah lain  agar mampu meningkatkan kualitas hasil belajar peserta didik, serta mampu mengembangkan pendidikan kejuruan yang semakin relevan dengan tuntutan kebutuhan masyarakat yang senantiasa berubah sesuai dengan perkembangan teknologi dan dunia kerja. Pada kondisi saat ini Indonesia memasuki era revolusi industri 4.0 dengan ditandai digitalisasi pada berbagai sektor di kehidupan masyarakat. Kemudahan dalam mengakses internet menjadi peluang yang dapat dimanfaatkan untuk menciptakan karya maupun inovasi kreatif berbasis Internet of Things (IoT). Dalam pembuatan sebuah sistem IoT memerlukan waktu riset dan juga berbagai macam percobaan yang lama dan menyita waktu. Bagi tenaga pengajar tentunya harus menyempatkan waktunya dalam melakukan riset untuk menemukan metode yang efektif dalam penyampaian pembelajaran maupun praktikum pembelajaran. Kegiatan pengabdian ini akan memberikan solusi dalam pemanfaat teknologi IoT kepada tenaga pendidik (Guru) dalam bentuk pelatihan dan praktikum penggunaan IoT dalam pembelajaran.
Identifying Components of Effective Police Training Through Factor Analysis Mihardja, Soma; Pramono, Suwito Eko; Yulianto, Arief; Arief, Ulfah Mediaty
Proceedings of International Conference on Science, Education, and Technology Vol. 10 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper explores the critical elements contributing to the effectiveness of organizational training programs, particularly for police. Key factors include the relevance of training content to police job roles, the clarity and simplicity of the material, and the use of interactive methods such as simulations and role-playing. The research employs a quantitative approach using factor analysis. The respondents are police officers who have already undergone training, with 114 participants involved in the study. Data analysis was conducted using SPSS. The results emphasize the role of trainers, highlighting the importance of their subject matter expertise, continuous professional development, and adaptability to diverse learning styles. The research indicates that relevant and engaging training significantly enhances employee productivity, job satisfaction, and retention. By integrating these elements, organizations can design training programs that improve police performance and contribute to overall organizational success.
Development of an Electrical Lighting Installation Demonstration Tool Using a Triac-Based Light Sensor Switch Wibowo, Salvo Eka; Anis, Samsudin; Arief, Ulfah Mediaty
Journal of Vocational and Career Education Vol. 9 No. 1 (2024): July 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i1.27120

Abstract

The automatic light sensor switch commonly used in the Electrical Power Installation Engineering Department at SMK Negeri 1 Tonjong is a factory-manufactured sensor switch with a complex circuit design, which has led to a decline in student learning motivation. This issue becomes the main reason for conducting research on the development of an instructional model for electrical lighting installations using a TRIAC-based light sensor switch, specifically applied in smart building lighting systems. This study employed a Research and Development (R&D) approach using the ADDIE development model. The findings of the study are as follows: (1) The developed product was deemed suitable for use, with a Content Validity Index (CVI) score of 0.88 from media experts and a Percentage of Agreement (PA) of 88%, and a CVI score of 0.91 and PA of 91% from subject material experts; (2) Product testing results indicated a high level of effectiveness, as shown by the Independent Sample t-Test on the N-gain Score, yielding a significance value (Sig. 2-tailed) of 0.000 < 0.05; and (3) The reproducibility coefficient (Kr) and scalability coefficient (Ks) were 92% and 81.5%, respectively, indicating that the instructional model for electrical lighting installation using the TRIAC-based light sensor switch is highly practical .
The Development of a Digital Electronics Trainer for Teaching Fundamentals of Electronics Engineering Suryani, Titin; Anis, Samsudin; Arief, Ulfah Mediaty
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i2.29004

Abstract

The teaching of Fundamentals of Electronics Engineering often faces challenges in bridging theoretical knowledge with practical application. A lack of interactive and contextual learning media hinders students’ comprehension of foundational concepts and diminishes their motivation to learn. This study addresses these challenges by developing a digital electronics trainer as an instructional tool to support the learning process. The trainer is designed and implemented to help students explore digital electronics concepts—specifically logic gates—through relevant problem-solving activities. The aim is to enhance students’ conceptual understanding and engagement. This research employs a Research and Development (R&D) approach, utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The results demonstrate the significant effectiveness of the digital electronics trainer in improving students’ cognitive abilities. An N-Gain score of 0.71 indicates a high level of cognitive improvement in the experimental group using the trainer, compared to the control group that relied on textbook-based learning.
Application of Q-learning Method for Disaster Evacuation Route Design Case Study: Digital Center Building UNNES Alrahma, Hanan Iqbal; Anan Nugroho; Hastawan, Ahmad Fashiha; Arief, Ulfah Mediaty
Jurnal Ilmu Komputer dan Informasi Vol. 17 No. 2 (2024): Jurnal Ilmu Komputer dan Informasi (Journal of Computer Science and Informatio
Publisher : Faculty of Computer Science - Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21609/jiki.v17i2.1236

Abstract

The Digital Center (DC) building at UNNES is a new building on the campus that currently lacks evacuation routes. Therefore, it is necessary to create an evacuation route plan in accordance with the Minister of Health Regulation Number 48 of 2016. Creating a manual evacuation route plan can be inefficient and prone to errors, especially for large buildings with complex interiors. To address this issue, learning techniques such as reinforcement learning (RL) are being used. In this study, Q-learning will be utilized to find the shortest path to the exit doors from 11 rooms on the first floor of the DC building. The study makes use of the floor plan data of the DC building, information about the location of the exit doors, and the distance required to reach them. The results of the study demonstrate that Qlearning successfully identifies the shortest evacuation routes for the first-floor DC building. The routes generated by Q-learning are identical to the manually created shortest paths. Even when additional obstacles are introduced into the environment, Q-learning is still able to find the shortest routes. On average, the number of episodes required for convergence in both environments is less than 1000 episodes, and the average computation time needed for both environments is 0.54 seconds and 0.76 seconds, respectively.
Development of Learning Media for Hydroponic Systems Based on the Internet of Things Arief, Ulfah Mediaty; Afdam, Delano Hafis; Sukamta, Sri; Dzulfikar, Andi Muhammad; Yarman, Indah Novi; Widiatningrum, Talitha; Baswara, Satsya Yoga; Prasetya, Johanes Adi
Edu Komputika Journal Vol. 11 No. 1 (2024): Edu Komputika Journal
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/edukom.v11i1.10912

Abstract

Advances in information and communication technology have changed the paradigm in the agricultural sector, especially in the application of the Internet of Things (IoT). An IoT-based monitoring system is an innovative step as there is an increasing need for technology in the agricultural sector and the development of the world of education. SMK Negeri 3 Salatiga, majoring in agribusiness, has great potential in hydroponic agriculture of lettuce plants, but there is no use of IoT technology in it. Hydroponic learning activities at SMK Negeri 3 Salatiga still use manual hydroponic learning media, which results in the competence possessed by teachers and students not being competent in IoT technology, especially its application to hydroponics. Meanwhile, if adjusted to learning outcomes, students should be able to fertilize plants in a modern way. The purpose of this study is to develop and implement hydroponic monitoring learning media based on Internet of Things technology. The application of learning media aims to improve the understanding or competence of teachers and students at SMK Negeri 3 Salatiga. The research methods used are Research and Development with the ADDIE development model, as well as one group pre-test and post-test design research design with 31 samples as a competency improvement test. This study resulted in 26 participants out of 31 participants experiencing an increase in competency in the results of the post-exam exam. So, it can be concluded that there is an increase in the competence of using hydroponic IoT by 83% among teachers and students.
Development of an Android-Based Interactive E-Module Using the Problem-Based Learning Method Hartoyo, Adhita Meizaldi; Qudus, Nur; Arief, Ulfah Mediaty; Rengga, Wara Dyah Pita
Journal of Vocational and Career Education Vol. 11 No. 1 (2026): July 2026
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v11i1.38069

Abstract

The rapid growth of digital technology has created significant opportunities for innovation in educational practices, including the use of Android-based e-modules as self-directed learning media. In the context of Vocational Education, particularly the Motorcycle Engineering expertise program, there is a strong need for interactive learning materials that can enhance the conceptual understanding and cognitive abilities of students. This study aims to develop an Android-based interactive e-module using the Problem-Based Learning (PBL) model for the topic of motorcycle workshop management elements, and to examine its validity, practicality, and effectiveness. The research employed the ADDIE research and development model with participation from media experts, material experts, teachers, and Grade XI TSM students at SMK Cordova Margoyoso. Research instruments included expert validation sheets, practicality questionnaires, and pre-test and post-test assessments. The findings indicate that the e-module is valid, with a media expert validation score of 3.7 (91%) and a material expert score of 3.6 (91%). The e-module was also considered practical based on student evaluations. In addition, it proved effective in improving cognitive abilities, as shown by an N-Gain score of 64% (moderately effective category) and a T-test significance value of 0.000 < 0.05. In conclusion, the Android-based interactive e-module developed using the PBL model meets the criteria of validity, practicality, and effectiveness as a learning medium.
Co-Authors Achmad Rifaldi Ade Putra Adhim Bagas Wisnu Aji Aditya Permana Afdam, Delano Hafis Agus Suryanto Ahmad Fashiha Hastawan Alfian Faiz Alrahma, Hanan Iqbal Anan Nugroho Ananda, Bella Risky Anantyo, Andika Andri Setiyawan Anggun Farisyatul Muslimah Arief Yulianto Bagas Perdana Abiyasa Baskoro, Aldo Luhung Baswara, Satsya Yoga Dewi Anggriani Dhidik Prastiyanto Djuniadi Djuniadi Dyah Nurani Setyaningsih Dyah Nurani Setyaningsih Dzulfikar, Andi Muhammad Ekarini, Fitria Eko Supraptono Faiz, Alfian Fathimah, Aisya Febianingrum, Anggun Fia Feddy Setio Pribadi Firdaus, Agung Adi Hakim, Sandy Maulana Nur Hakim Hanrian Rossa Hartoyo, Adhita Meizaldi Hesti Wahyu Nugroho, Hesti Wahyu I Made Sudana Indah Novi Yarman Intan Dwi Ariyani Maulana, Alfan Mihardja, Soma Moh. Umar Dani Atik Mubarak, Raihan Fa'iq Muhammad Jejen Sukrilah Mukti, Gandhi Satria Nadia, Amalia Khairun Noor Hudallah Nugroho, Anan Nur Iksan Nur Qudus Oktiagi, Radiva Hera Pradana, Irzhafran Ridho Praditya, Ambrosius Lingga Prakoso, Bima Dwi Pramudyo Wicaksono Pranata, Bayu Ari Pranata, Bayu Ari Prasetya, Johanes Adi Prawidana Kurniawan Puji, Nunuk Riza Putra Pratama, Mohammad Hazim Putri Khoirin Nashiroh Qunefi, Fuat Ramadhan, Ikfal Ramadhan Riana Defi Mahadji Putri Rifaldi, Achmad Samsudin Anis Saptriana Suryanto, Saptriana Septariza, Devina Ayu Septiani, Amalia Setiyo Wahyono, Setiyo Shofiani, Diah Sonhaji Sonhaji Sri Sukamta Sri Sukamta Sugeng Purbawanto Sugeng Purbawanto Sukamta, Sri - Sukamta, Sri Sukamta Sukrina, Nur Fitri Sukrina, Nur Fitri Sukrina Sulistyawan, Vera Noviana Supraptono , Eko Suryani, Titin Suwito Eko Pramono Syahida Mu’aliman Syarif Hidayatulloh Talitha Widiatningrum Tatyantoro Andrasto Tunnisa, Salsabila Wafa', Almas Diqya Wahyu Adi Ramadan Wahyudi, Tri Agus Wara Dyah Pita Rengga Wibowo, Apriansyah Wibowo, Salvo Eka Yarman, Indah Novi Yeri Sutopo Yulaekha, Novita Rizka Yulaekha, Novita Rizka