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All Journal International Journal of Electrical and Computer Engineering International Journal of Informatics and Communication Technology (IJ-ICT) International Journal of Advances in Applied Sciences TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics International conference on Information Technology and Business (ICITB) Annual Research Seminar Proceeding of the Electrical Engineering Computer Science and Informatics JPSriwijaya Science and Technology Indonesia Demography Journal of Sriwijaya Jurnal Penelitian Sains BAREKENG: Jurnal Ilmu Matematika dan Terapan Justek : Jurnal Sains Dan Teknologi MATAPPA: Jurnal Pengabdian Kepada Masyarakat Teorema: Teori dan Riset Matematika QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian Magister Pendidikan IPA INSIST (International Series on Interdisciplinary Research) Imajiner: Jurnal Matematika dan Pendidikan Matematika Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Indonesian Journal of Electrical Engineering and Computer Science Journal of Applied Science, Engineering, Technology, and Education Griya Journal of Mathematics Education and Application Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) International Journal of Science and Society (IJSOC) Uninus Journal of Mathematics Educations and Science (UJMES) Jurnal Pepadu Jurnal Pendidikan dan Pengabdian Masyarakat Aksi Kita: Jurnal Pengabdian Kepada Masyarakat
Fitri Maya Puspita
Universitas Sriwijaya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Transportation Other

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Aplikasi SPLDV dan Program Linier Dua Variabel dalam Menyelesaikan Permasalahan Kontekstual Rama Dani, M Ardi; Octarina, Sisca; Puspita, Fitri Maya
Griya Journal of Mathematics Education and Application Vol. 5 No. 4 (2025): Desember 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i4.932

Abstract

This study aims to provide a concrete illustration of the application of systems of linear equations in two variables (SPLDV) and two-variable linear programming in solving real-world problems commonly encountered in daily life. The background of this research is rooted in the persistently low ability of students and small business practitioners to apply linear mathematical concepts to support decision-making processes, such as determining product prices and optimizing production. Using a descriptive method with a conceptual quantitative approach, this study presents two illustrative case studies: the determination of unit prices for stationery products through SPLDV, and the optimization of the production combination of woven bags and mats in a rattan-based small enterprise through two-variable linear programming under time constraints. The results indicate that SPLDV can objectively determine product prices based on transaction data, while linear programming provides an optimal solution in the form of producing 12 bags and 6 mats, yielding a maximum profit of IDR 1,320,000. These findings demonstrate that linear mathematical models serve as effective and applicable tools to support decision-making in both microeconomic contexts and mathematics education.
Quasi Linear Utility Optimization for Selfish User Model in C-RAN With Demand Response and Bundling Prayoga, Nafisah Aura; Puspita, Fitri Maya; Octarina, Sisca
Justek : Jurnal Sains dan Teknologi Vol 8, No 4 (2025): December
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v8i4.36521

Abstract

This study aims to develop two optimization models that provide a realistic representation of interactions between selfish users and C-RAN networks by integrating demand response mechanisms, heterogeneous incentives, and quasi-linear utility functions. The first model is designed to formulate selfish user behavior in a C-RAN system based on utility structures and incentive schemes, while the second model extends this framework through the incorporation of a bundling scheme to evaluate improvements in network efficiency and user utility. The research methodology involves collecting and formulating 30 days of traffic data, defining relevant model parameters and variables, constructing the optimization models, and solving them using LINGO 13.0 under three pricing schemes: usage-based, flat-fee, and two-part tariff. The results reveal that the flat-fee pricing scheme with bundling in Case 2 provides the most efficient configuration, achieving the highest objective value of  and the lowest iteration count. These findings demonstrate that integrating bundling strategies into C-RAN pricing models can enhance network efficiency, improve bandwidth utility, and increase ISP revenue.
Financing model for demand response information services with bundled incentives Yuliza, Evi; Puspita, Fitri Maya; Rahayu, Fridha Aprisa
International Journal of Advances in Applied Sciences Vol 14, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i4.pp1229-1240

Abstract

This study attempts to build a new model for information service financing schemes by considering utility functions to measure heterogeneous consumer satisfaction. This model was developed by involving a combination of reverse charging, demand response, and heterogeneous incentive models, and considering the quality of user service measured by a quasi-linear utility function against the information service financing scheme. The incentive financing scheme is applied to a local data server, including traffic during peak hours and off-peak hours. This internet incentive financing model is solved using the LINGO 13.0 application. Furthermore, the development model for incentive financing for information services based on demand response and bundling in the information service financing scheme is subjected to sensitivity analysis with the aim of identifying parameters that affect model performance. Based on the analysis that has been done, the results of this study indicate that the new model in the incentive financing scheme for information services with a quasi-linear utility function involving a combination of reverse charging, demand response, and heterogeneous incentive models produces an optimal solution in a fixed cost financing scheme for data traffic usage during peak hours and off-peak hours.
Optimasi Keuntungan Produksi Kue Kering Nastar dan Semprit Menggunakan Metode Simpleks dan Aplikasi POM-QM Putri, Nadine Aliza; Puspita, Fitri Maya; Octarina, Sisca
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 8, No 1 (2026): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v8i1.25497

Abstract

Usaha kue kering rumahan "Dapur Ma’Ina" menghadapi persaingan ketat dan keterbatasan alokasi bahan baku harian, sehingga sulit menentukan kombinasi produksi yang tepat untuk memaksimalkan keuntungan. Penelitian ini bertujuan untuk mengaplikasikan program linier guna menghitung kombinasi produksi optimal kue nastar dan semprit yang memberikan keuntungan maksimum. Metode yang diaplikasikan adalah Program Linier dengan penyelesaian menggunakan perhitungan manual Metode Simpleks dan divalidasi menggunakan perangkat lunak POM-QM, menggunakan data primer berupa resep, ketersediaan bahan, dan keuntungan dari usaha "Dapur Ma’Ina". Hasil perhitungan menunjukkan keuntungan maksimal yang dapat diperoleh adalah sebanyak Rp 1.050.000, dengan kombinasi produksi optimal yang disarankan adalah 3 resep Nastar dan 2 resep Semprit. Bagi peneliti berikutnya, dianjurkan untuk mengembangkan penelitian ini dengan menyertakan variabel kendala lain seperti waktu produksi atau tenaga kerja. The home-based pastry business 'Dapur Ma'Ina' faces tight competition and limited daily raw material allocation, making it difficult to determine the right production combination to maximize profit. This research aims to apply linear programming to calculate the optimal production combination of nastar and semprit cakes that yields maximum profit. The method used is Linear Programming, solved using manual Simplex Method calculations and validated using POM-QM software, utilizing primary data including recipes, material availability, and profit from the 'Dapur Ma'Ina' business. The calculation results show that the maximum achievable profit is Rp 1,050,000, with the optimal production combination recommended being 3 Nastar recipes and 2 Semprit recipes. For future researchers, it is suggested to expand this research by adding other constraint variables, such as production time or labor.
The Bender’s decomposition model to optimize temporary waste disposal sites based on general algebraic modeling system Octarina, Sisca; Puspita, Fitri Maya; Cahyono, Endro Setyo; Yuliza, Evi; Simanjuntak, Pebriyanti; Supadi, Siti Suzlin
Indonesian Journal of Electrical Engineering and Computer Science Vol 41, No 2: February 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v41.i2.pp666-679

Abstract

Waste constitutes a substantial problem in urban and residential locales, as the volume of refuse escalates in tandem with population increase, deteriorating community quality of life. One solution to this problem is to provide temporary waste disposal sites (TWDS). This research discussed optimizing TWDS in the Sukarami Subdistrict, Palembang City, which consists of seven villages. The current TWDS in the Sukarami Subdistrict is irregular, with some sites located close together and others far apart. The optimization problem is solved by formulating the set covering problem (SCP) model, namely the set covering location problem (SCLP), the p-Median problem, and the Bender’s decomposition model. All models were solved using the general algebraic modeling system (GAMS) software. The research introduces a Bender’s decomposition model based on the SCLP model. The Sukarami Subdistrict has 29 TWDS located in only five villages. Using the SCLP and Bender’s decomposition models, the study identified 19 optimal TWDS in the Sukarami Subdistrict. Based on the solution of the p-Median problem, there are seven TWDS that can meet each village’s demand. This study recommends the optimal TWDS obtained from the Bender’s decomposition model. Additionally, two TWDS are recommended to be added, each in Sukodadi and Talang Betutu villages.
Pemanfaatan Bank Sampah untuk Pembelajaran Matematika Berbasis Lingkungan Yuliza, Evi; Faruk, Alfensi; Hadi; Nurnawati, Elisa; Puspita, Fitri Maya; Indrawati; Octarina, Sisca
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 12 No. 1 (2026): Qardhul Hasan: Media Pengabdian kepada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/qh.v12i1.23134

Abstract

Permasalahan mitra dalam kegiatan pengabdian ini meliputi pengelolaan sampah sekolah yang belum berjalan secara optimal serta belum dimanfaatkannya bank sampah sebagai bagian dari proses pembelajaran, khususnya pada mata pelajaran matematika. Pembelajaran matematika mencakup materi operasi hitung, pengukuran, dan penyajian data. Kegiatan pengabdian ini bertujuan untuk menerapkan bank sampah sebagai media pembelajaran matematika berbasis lingkungan di SD Negeri 8 Indralaya Utara. Metode pelaksanaan yang digunakan meliputi observasi, sosialisasi kepada siswa mengenai pentingnya bank sampah di lingkungan sekolah, pendampingan pembelajaran matematika yang terintegrasi dengan bank sampah, serta evaluasi melalui pretest dan posttest untuk mengukur peningkatan pemahaman siswa. Hasil kegiatan menunjukkan adanya peningkatan pemahaman konsep matematika siswa, yaitu pada materi luas meningkat sebesar 20,68% dari 62,07% menjadi 82,75%, materi volume meningkat sebesar 24,14% dari 62,07% menjadi 86,21%, dan materi statistika sederhana meningkat sebesar 19,23% dari 76,92% menjadi 96,15%. Dengan demikian, pemanfaatan bank sampah sebagai media pembelajaran matematika berbasis lingkungan terbukti efektif dalam meningkatkan hasil belajar siswa sekaligus mengedukasi siswa peduli terhadap lingkungan.
Co-Authors Adinda Putri Ramadhany, Adinda Putri Ahmadi, Adik Alfensi Faruk Anggi Nurul Pratiwi Ani Sahara Br. Simanjuntak Arden Naser Yustian Simarmata Armalia, Divasanda Aryani, Robeah Ayu Nursafitri Ayu Wulandari Bahok M. Taib, Bahok M. Bambang Suprihatin Bella Arisha Bella Juwita Rezky Darmawijoyo, Darmawijoyo Des Alwine Zayanti, Des Alwine Desta Wahyuni Destia Maharani Dewi Lisandra Dian Wahyuni Diyaz Rachmaningtyas Eka Susanti Elisa Nurnawati Endro Setyo Cahyono, Endro Setyo Evi Yuliza, Evi Fadhila Chaniago, Redina An Ferani Eva Zulvia Fidella Oktariana Fitra Nur Azizah Hadi Haryati Pane Helmayanti, Rizky Hernanda, Eggyana Deri Icha Puspita Novyasti Iffah Husniah Indrawati Indrawati Indrawati Inosenisus Nadeak Inosensius Nadeak Irmeilyana Ismail Abdullah, Ismail Juniwati Juniwati Kurniadi, Elika Laila Hanum Malica Putri Amdes Meiza Putri Lestari Muthia Ulfa Nadia Zuliaty Syaputri Nadia Zuliaty Syaputri Ning Eliyati Novi Rustiana Dewi Novita Sari Nuraini, Anggun Oki Dwipurwani Oky Sanjaya Pratiwi, Weni Dwi Prayoga, Nafisah Aura Putra Bahtera Jaya Bangun, Putra Bahtera Jaya Putra BJ Bangun, Putra BJ Putri, Nadine Aliza Qatrunnada, Dhiya Rachmaningtiyaz, Diyaz Rahayu Tamy Agustin Rahayu, Fridha Aprisa Rahmadia, Putri Rama Dani, M Ardi Ramadhan, Ahmad Farhan Rani Elekta Togatorop Reza Andeka Rima Melati Rindarto, Ahmad Rizki, Krisda Robinson Sitepu Rohania Rohania Sabana, Aprilia Nur Sarjani, Ita Shintya Apriliyani Simanjuntak, Pebriyanti Simarmata, Ruth Helen Sisca Octarina Siti Suzlin Supadi Somakim, Somakim Sri Erlita Sri Erlita Supadi, Siti Suzlin Tampubolon, Farah Nabilah Tasiah, Mawar Tri Handayani Ulandari, Mazida Venty Wenny Herlina Yolanda Fitria YUNITA Yunita Yunita Yunita Yunita Yusuf Hartono