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All Journal Jurnal Teknik Industri Jurnal Pendidikan Vokasi Jurnal Edukasi Elektro Journal of Tropical Soils ELINVO (Electronics, Informatics, and Vocational Education) Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL EKONOMI PENDIDIKAN DAN KEWIRAUSAHAAN Asian Journal of Agriculture Journal of Vocational Education Studies Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Ideguru: Jurnal Karya Ilmiah Guru International Journal of Engineering, Science and Information Technology Jurnal Wana Tropika Journal of Vocational and Technical Education (JVTE) Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Pendidikan Progresif Jurnal Wana Tropika
Putu Sudira
Fakultas Teknologi Pertanian Universitas Gadjah Mada, Yogyakarta
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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Implementasi Program Kemitraan dan Kewirausahaan SMK PK pada Keahlian Busana di SMK Negeri 1 Saptosari Wulandari, Ely Tri; Sudira, Putu
Ideguru: Jurnal Karya Ilmiah Guru Vol. 10 No. 3 (2025): September 2025 Edition
Publisher : Dinas Pendidikan, Pemuda dan Olahraga Daerah Istimewa Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51169/ideguru.v10i3.2001

Abstract

This study aims to analyze the implementation of the Center of Excellence Vocational High School Program (SMK PK) in the Fashion Design Expertise Program at SMKN 1 Saptosari. The research employed a qualitative case study approach, using in-depth interviews, participatory observations, and documentation as data collection techniques. SMKN 1 Saptosari has been designated as an SMK PK implementer since 2021 and continues to receive program support until 2025. The study was conducted from October 2024 to February 2025, focusing on program selection strategies, planning, implementation, supporting factors, and challenges. The findings indicate that the selection strategy was carried out through school potential mapping, infrastructure strengthening, and partnership development with business and industry sectors (DUDI). Program planning was focused on developing the School Operational Curriculum (KOSP) based on the Merdeka Curriculum and tailored to the needs of the creative industry, particularly fashion. Program implementation included strengthening the Teaching Factory, developing an industry-based work culture, entrepreneurship training, and active collaboration with industry partners. Supporting factors included the availability of industry-standard practice facilities, strong school management support, and mentoring from universities and industry. Challenges remain in terms of limited industry-standard equipment, low utilization of digital technology, and the need to improve teachers’ capacity in project-based learning. Overall, the SMK PK program at SMKN 1 Saptosari has contributed positively to improving vocational education quality, although further strengthening of human resources and infrastructure is still required.
Optimization of Image Compression Using K-Means Clustering for Digital Heritage Archives Sahria, Yoga; Sudira, Putu; Priyanto
Advance Sustainable Science Engineering and Technology Vol. 8 No. 1 (2026): November - January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i1.2772

Abstract

Preserving digital cultural assets requires efficient compression to minimize storage and bandwidth costs. However, existing studies rarely evaluate K-Means Clustering on structurally complex objects such as the Prambanan Temple, leaving a research gap in assessing its performance against standard codecs. This study introduces a novel optimized K-Means pipeline with adaptive cluster selection and improved centroid initialization for compressing high-detail temple imagery. The method groups pixels based on color proximity, reducing redundancy while preserving key structural patterns. Experiments show that K-Means achieves PSNR 28.08–30.65 dB and SSIM 0.86–0.92, outperforming baseline JPEG at similar file sizes PSNR 26–28 dB, SSIM 0.80–0.87. This quantitative comparison demonstrates the model’s superior perceptual retention in textured stone regions. The methodological contribution lies in combining spatial–chromatic feature weighting with iterative centroid refinement, which increases cluster stability and reduces quantization artifacts. Findings confirm K-Means as a viable alternative for controlled-distortion compression. In conclusion, the proposed approach provides practical engineering implications, enabling reduced storage footprints, predictable reconstruction quality, and integration into hybrid compression pipelines for large-scale digital imaging systems.
Application of Singular Value Decomposition for Image Compression of Yogyakarta Cosmological Axis in Digital Learning in Vocational Education Sahria, Yoga; Sudira, Putu; Salim, Mohamad Hidir Mhd
International Journal of Engineering, Science and Information Technology Vol 6, No 1 (2026)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v6i1.1732

Abstract

This study examines the application of the Singular Value Decomposition (SVD) method as a digital image compression technique on the Yogyakarta Cosmological Axis object which is used as a digital learning medium in vocational education. The background of this study is based on the need for high-quality visual media with efficient file sizes for easy storage, transmission, and access through digital-based learning systems. The study uses an experimental quantitative approach with data in the form of high-resolution digital images processed through SVD-based compression stages. The research procedure includes image transformation into matrix form, matrix decomposition using SVD, selection of a number of dominant singular values (ranks), and reconstruction of the compressed image. The research data were analyzed using image quality evaluation parameters, namely Mean Squared Error (MSE), Peak Signal-to-Noise Ratio (PSNR), Structural Similarity Index (SSIM), and Compression Ratio (CR). The results show that an increase in the rank value is directly proportional to an increase in the quality of the reconstructed image, as indicated by a decrease in the MSE value and an increase in the PSNR and SSIM values. Conversely, a decrease in the rank value results in a higher compression rate but is followed by a degradation in the visual quality of the image. Experimental data also shows that most of the visual information of an image can be represented by a small number of principal singular values, thus allowing for significant file size reduction without losing the important visual structure of the image object. Visually, the compressed image at a medium rank value is still considered suitable for use as a learning medium because the main details, object contours, and visual characteristics of the Yogyakarta Cosmological Axis can still be recognized well. These findings prove that the SVD method is effective as a mathematical-based image compression technique to support the development of efficient, informative, and contextual digital learning media based on local wisdom in vocational education
Leadership Strategy of the School Principal in Improving the Quality of Education in Remote Areas at SMKN 12 Sarolangun Berty, Yukinta Nasya; Sudira, Putu; Alim, Maulina Idami
Journal of Vocational Education Studies Vol. 9 No. 1 (2026): Vol 9 No 1 (IN PRESS)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/joves.v9i1.12127

Abstract

This study aims to analyze the leadership strategy of the school principal in improving the quality of education in remote areas, specifically at SMKN 12 Sarolangun. Remote areas often face various challenges in accessing quality education, such as limited infrastructure, minimal government support, and low community participation in education. Therefore, the role of the school principal is crucial in creating an environment that supports the improvement of education quality in these areas. This research employs a qualitative approach, with data collection techniques including in-depth interviews, observation, and documentation. Participants in this study include the school principal, teachers, and other relevant stakeholders involved in the educational process at SMKN 12 Sarolangun. The collected data were analyzed using thematic analysis techniques to identify and describe the various leadership strategies implemented by the principal in addressing the existing challenges and efforts to enhance the quality of education. The results show that the principal at SMKN 12 Sarolangun applies several leadership strategies, including human resource development, improving the quality of teaching and learning, and utilizing technology and networking with external parties. In addition, the principal is also active in building partnerships with the community and related agencies to support educational activities at the school. This research is expected to make a significant contribution to the development of educational leadership strategies in remote areas and serve as a reference for other school principals in efforts to improve education quality in similar conditions.
Co-Authors Aanggraini, Yussi Abdulloh Hamid Abdurrahman, Afif Ade Dwi Putra Janata Adkha, Nur Faizal Agung B. Supangat Alim, Maulina Idami Anggraini, Yussi Areisy, Hafiidhiya Janata Azwar Maas Bambang Djadmo Kertonegoro Bayu Rinawan, Rangga Benito Heru Purwanto Berty, Yukinta Nasya Budiadi Choirunnisya', Lestari Rochmatun Dedi Setiawan Dewi, Ayuana Kartika Didik Indradewa Ernawati, Enik Erny Poedjirahajoe HAQ, RIJALUL HARTATI Haryono Supriyo Hidayati, Tuti I WAYAN WINDIA Irfan Luthfi, Muhammad Iskandar, Ranu Jaya, Daniel Jesayanto Kumalajati, Erlynda Lilik Sutiarso Linda Setiawati, Linda Mochamad Bruri Triyono MULYONO, NITISAPTO Mutohhari, Farid Nikodemus P.P.E. Nainiti, Nikodemus P.P.E. Nining Wahyuningrum Nopriyanti Nopriyanti Nurdianah, Evi Nurdiansyah, Ferizal Nuryadin Eko Raharjo Nuryake Fajaryati Nuur Wachid Abdul Majid Pipit Utami Pramu Pramu Priyanto Purwantono, Anung Slamet Dwi Rinawan, Rangga Bayu Sabarnudin, Sambas Sahid Susanto Sahria, Yoga Salim, Mohamad Hidir Mhd Siti Mazizatuz Zahroh Siti Nurul Aini, Siti Nurul Sumarni, Titi Sumiyati, S Sutarto Sutarto Thomas Sukardi Umi Rochayati Wakijah, Siti Wulandari, Ely Tri Yowanita Dwi Irwanti Yuanto, Teguh Arik Zamroni, Z.