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All Journal Scientific Journal of Informatics Jurnal Ilmiah Peuradeun DedikasiMU: Journal of Community Service Jurnal Abdimas Journal of Community Empowerment
Rohman, Shohihatur
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Religion Humanities Computer Science & IT Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Social Sciences

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Customer Segmentation Using the Integration of the Recency Frequency Monetary Model and the K-Means Cluster Algorithm Alamsyah, Alamsyah; Prasetyo, P. Eko; Sunyoto, Sunyoto; Bintari, Siti Harnina; Saputro, Danang Dwi; Rohman, Shohihatur; Pratama, Rizka Nur
Scientific Journal of Informatics Vol 9, No 2 (2022): November 2022
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v9i2.39437

Abstract

Purpose: This research aims to do customer segmentation in retail companies by implementing the Recency Frequency Monetary (RFM) K-Means cluster model and algorithm optimized by the Elbow method.Methods: This study uses several methods. The RFM model method was chosen to segment customers because it is one of the optimal methods for segmenting customers. The K-Means cluster algorithm method was chosen because it is easy to interpret, implement, fast in convergence, and adapt, but lacks sensitivity to the initial partitioning of the number of clusters. To help classify each category of customers and know the level of loyalty, they use a combination of the RFM model and the K-Means method. The Elbow method is used to improve the performance of the K-Means algorithm by correcting the weakness of the K-Means algorithm, which helps to choose the optimal k value to be used when clustering.Result: This research produces customer segmentation 3 clusters with a Sum of Square Error (SSE) value of 25,829.39 and a Callinski-Harabaz Index (CHI) value of 36,625.89. The SSE and CHI values are the largest ones, so they are the optimal cluster values.Novelty: The application of the integrated RFM model and the K-Means cluster algorithm optimized by the Elbow method can be used as a method for customer segmentation.
OPTIMALISASI STRATEGI UPSCALING UMKM SENTRA OLAHAN KEDELAI DI BANDUNGAN, KABUPATEN SEMARANG Sunyoto, Sunyoto; Rohman, Shohihatur; Rachmadi, Moch Faizal; Anisykurlillah, Indah
DedikasiMU : Journal of Community Service Vol 6 No 4 (2024): Desember
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/dedikasimu.v6i4.8788

Abstract

Usaha Mikro, Kecil dan Menengah (UMKM) mempunyai kontribusi yang sangat signifikan dalam perekonomian nasional. UMKM dengan ketangguhan yang ada mampu menjadi buffer dan bersifat resilien (kuat dan tangguh). Pengembangan UMKM dapat mengoptimalkan berbagai sumber daya yang melimpah di Indonesia mulai dari sektor pangan, kerajinan, logam, kearifan lokal dan sebagainya. Oleh karena itu, diperlukan sinergitas dan kolaborasi berbagai pihak dalam pengembangan UMKM agar dapat upscaling pada berbagai sektor di tingkat pasar global. Kegiatan pengabdian kepada masyarakat ini dilaksanakan dengan tujuan menyelesaikan permasalahan yang dihadapi oleh industri kecil pembuatan tahu khas Bandungan, Kabupaten Semarang, Jawa Tengah. Adapun mitra kegiatan pengabdian adalah UMKM Tahu Khas Bandungan atau Tahu Serasi “Lestari” dengan alamat Desa Kenteng RT 07/RW 01, Kecamatan Bandungan, Kabupaten Semarang, Jawa Tengah. Terdapat dua aspek permasalahan yang akan ditangani, yaitu aspek produksi dan aspek manajemen. Dalam pelaksanaan dipakai beberapa metode yang saling mendukung, antara lain dengan penyuluhan, demonstrasi, praktik langsung dan pendampingan. Dalam pembuatan mesin/alat yang akan diterapkan di mitra akan dilaksanakan di workshop jurusan Teknik Mesin FT Unnes, dengan melibatkan teknisi dan mahasiswa. Hasil kegiatan pengabdian ini adalah dihasilkannya Teknologi Tepat Guna (TTG) berupa 1 unit alat press tahu mekanis, pendampingan pembukuan dan manajemen usaha, peningkatan promosi, produksi, pemasaran dan produktivitas usaha berbasis optimalisasi kompetensi Sumber Daya Manusia (SDM).
Unraveling the Merdeka Curriculum: Exploring Differentiated Instruction’s Impact on Student Learning Samsudi, Samsudi; Supraptono, Eko; Utanto, Yuli; Rohman, Shohihatur; Djafar, Tasliati
Jurnal Ilmiah Peuradeun Vol. 12 No. 2 (2024): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/peuradeun.v12i2.1131

Abstract

Differentiated instruction, as the application of the ‘teaching at the right level’ principle, which involves tailoring teaching to student’s needs and the diversity of their interests and readiness, needs to be developed in Merdeka Curriculum implementation. This research aimed to measure the influence of learning components, including variables such as planning, implementation, and learning assessment, as well as learning elements, including variables such as content, processes, learning outcomes, and the learning environment, on the potential for differentiated instruction in elementary and secondary education. This research employed a quantitative method, using path analysis to measure the significance of the influence of independent variables (learning components and learning elements) on the potential for differentiated instruction. The results indicated that three variables significantly influence the Potential for Differentiated Instruction (Y), namely: Learning Components/ Learning Assessment (X3) with a t-value of 12.817 > ttable1,985; Learning Elements/ Learning Processes (X5) with a t-value of 10.223 > t ttable 1,985; and Learning Outcomes/ Achievements (X6) t-value 9.817 > ttable 1,985. Thus, the potential for differentiated instruction in Merdeka Curriculum implementation in elementary and secondary education can be maximized if teachers can plan and implement learning assessments accurately, manage differentiated instruction processes, and apply differentiated instruction outcomes.
Aloe Vera Cultivation and Post-Harvest Processing for Daily Life Sutopo, Yeri; Rudyatmi, Ely; Rohman, Shohihatur; Setiyanto, Denny Firman; Dewa, Pramaditya Putra Komala; Andhika, Pedro
Journal of Community Empowerment Vol. 4 No. 2 (2024): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

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

Abstract

Aloe vera was often wasted, even though it actually has many benefits. During a morning walk in the Taman Kradenan Asri housing complex, many aloe vera plants were found to be thrown away. When asked to the owner of the plant, why were so many of his aloe vera plants thrown away? The owner of the aloe vera replied that this plant grows very quickly, even though its use was only a little, namely for washing hair as a shampoo supplement and its mucus to help heal minor wounds. This fact encouraged community service activities to be carried out in the housing complex, namely through training for mothers of the Dasa Wisma. This community service activity aims to describe skills and knowledge in developing higher quality aloe vera which could later be used to produce processed products for mothers who are members of the Dasa Wisma in RW 11, Sukorejo Village in Semarang City. The results of this community service show that: (1) The knowledge of the local women who participated in the training and mentoring regarding Aloe Vera cultivation and post-harvest processing for daily life in RW 11, Sukorejo Village, Gunungpati District, Semarang City, most of the 50% of participants had knowledge in the category Enough.; (2) Skills of local women who participated in training and mentoring on Aloe Vera Cultivation and Post-Harvest Processing for Daily Life in RW 11, Sukorejo Village, Gunungpati District, Semarang City, the majority of whom, namely 55.5% of participants, had skills in the sufficient category.
Development Of An Electric Motorcycle Trainer Kit As A Learning Medium For Electrical Engineering And Automotive Engineering Majors In Vocational High Schools Supraptono, Eko; Wibowo, Apriansyah; Wijaya, M. Burhan Rubai; Rohman, Shohihatur; Siraj, Ubaidillah; Qunefi, Fuat; Mubarak, Raihan Fa’iq; Baskoro, Aldo Luhung; Aryaditama, Geofan; Fathimah, Aisya Fathimah
Jurnal Abdimas Vol. 29 No. 1 (2025): June 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/pvn4eh96

Abstract

The increasing demand for electric vehicles (EVs) due to global warming and environmental issues necessitates specialized knowledge in this field. This research develops an electric motorcycle trainer kit designed to enhance learning in vocational high schools, specifically in the Electrical Engineering and Automotive departments. The research aimed to design and validate a trainer kit that accurately represents an electric motorcycle's electrical system, facilitating hands-on learning for students. The methodology involved data collection, product design, and implementation with validation by field experts. Results showed that the trainer kit significantly improved students' understanding and practical skills related to electric vehicle systems. In conclusion, the electric motorcycle trainer kit proved to be an effective educational tool, supporting the development of competencies required for the growing electric vehicle industry. Further improvements in the aesthetic and technical aspects of the kit could enhance its future applications.
Co-Authors Alamsyah - Andhika, Pedro Aryaditama, Geofan Baskoro, Aldo Luhung Dewa, Pramaditya Putra Komala Djafar, Tasliati Eko Supraptono Ely Rudyatmi, Ely Fathimah, Aisya Fathimah Indah Anisykurlillah M. Burhan Rubai Wijaya Mubarak, Raihan Fa’iq P. Eko Prasetyo Pratama, Rizka Nur Qunefi, Fuat Rachmadi, Moch Faizal Samsudi . Setiyanto, Denny Firman Siraj, Ubaidillah Siti Harnina Bintari Sunyoto Sunyoto Wibowo, Apriansyah Yeri Sutopo Yuli Utanto