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All Journal Saintia Matematika SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Sains Matematika dan Statistika Edumatsains Jurnal Ilmiah METHONOMI Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah Desimal: Jurnal Matematika International Journal of Supply Chain Management JOURNAL OF SCIENCE AND SOCIAL RESEARCH MABIS: Manajemen dan Bisnis Jurnal Manajemen dan Bisnis MES: Journal of Mathematics Education and Science Jurnal Ilmiah Manajemen Kesatuan Jurnal Ilmiah Akuntansi Kesatuan Jurnal Penelitian Ekonomi Akuntansi (JENSI) ASSET: Jurnal Manajemen dan Bisnis Journal of Research in Mathematics Trends and Technology Jurnal Ekonomi Bisnis, Manajemen dan Akuntansi (JEBMA) FARABI: Jurnal Matematika dan Pendidikan Matematika Jurnal Manajemen dan Bisnis International Journal of Educational Review, Law And Social Sciences (IJERLAS) International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Jurnal Akutansi Manajemen Ekonomi Kewirausahaan (JAMEK) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) MATHunesa: Jurnal Ilmiah Matematika Journal of Mathematics Technology and Education Journal of Management Analytical and Solution Asian Journal of Management Analytics ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar Return : Study of Management, Economic and Bussines Multiverse: Open Multidisciplinary Journal International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT) Innovative: Journal Of Social Science Research Enrichment: Journal of Multidisciplinary Research and Development Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika Alkhidmah: Jurnal Pengabdian dan Kemitraan Masyarakat Journal of Business Management Neraca Manajemen, Akuntansi, dan Ekonomi Cendikia Pendidikan Journal Business Administration (JBA): Entrepreneurship and Creative Indutry Journal Of Management Analytical and Solution (JoMAS) Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Parapat Gultom
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities 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 Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Journal : Journal of Research in Mathematics Trends and Technology

 1 
Model for Working Capital Management of Micro, Small and Medium Enterprises in Indonesia by Using Multiple Objective Stochastic Programming Gultom, Parapat; Widyasari, Rina; Suyanto; Marpaung, Jonathan Liviera
Journal of Research in Mathematics Trends and Technology Vol. 5 No. 2 (2023): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v5i2.15937

Abstract

Micro, small and medium enterprises (MSME) have a big influence for the economy in Indonesia. But almost of this company don’t have an optimal working capital management because less knowledge and limitation of financial not only from the owner but also financial credit from bank. Working capital management plays an important role in the success or failure of a company its business activities. To achieve optimal use of working capital management managers the company must accurately control the trade-off between profitability and liquidity. The purpose of this research is to develop a model of working capital management where the sales are under uncertainty and the company has a limit financial. This study was tested using multiple linear regression analysis to see the correlation between profitability and liquidity with x1, x2, x3, x4, and x5 then find optimal solution by stochastic multi objective programming because we consider that sales is in under certainty. The main variables used in the analysis of return on assets to measure profitability, receivable turnover to measure liquidity, inventory turnover, accounts payable days, cash conversion. The results showed that account payable, inventory turnover, and cash turn over have a positive correlation for liquidity but inventory turnover and cash turnover have negative correlation to profitability.
Location Models with Multy Criterious Networks (Case Study: The Industrial of Rice Processing in The Batubara District) Gultom, Parapat; Nababan, Esther Sorta Mauli; Marpaung, Jonathan Liviera
Journal of Research in Mathematics Trends and Technology Vol. 4 No. 2 (2022): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v4i2.16121

Abstract

Determining location is a problem encountered in many areas of everyday life. Determining this location becomes complex when many factors are taken into consideration, where one factor and another can conflict. One of the issues that will be discussed in this research is determining the location of the rice processing industry. This problem needs to be studied considering that the opportunity to establish a rice industry in several regions in Indonesia is very high considering that the potential for the main raw material (rice) is very large, as is the rice market where the largest population of the Indonesian nation makes rice the main food ingredient. The case study that will be discussed in this research is the rice processing industry in Batu Bara Regency. Batu Bara Regency is one of the districts/cities in North Sumatra Province which has enormous rice potential. In order to improve the welfare of farmers and provide good quality rice for the community, a Rice Processing Industry is needed. The problem in the rice processing industry is very complex, apart from the seasonal availability of rice raw materials, is the location where the rice processing factory is located. Various criteria need to be considered in this determination relating to the distance of the rice processing industry factory to each source of the main raw material (rice). Determining this location is very complex because it involves multiple criteria. This research will provide a location determination model using a Multi Criteria Network. The criteria used to determine the location of the rice processing industry in Batu Bara Regency are the transportation distance from the raw material center, travel time, and the condition of the road connecting the raw material center to the factory location. Based on the criteria for distance between rice centers and rice processing industrial factories, a route with a total minimum distance score of 0.71 is obtained. Meanwhile, based on travel time, the best route was obtained with a minimum total time score of 1.61. Based on the quality of the road taken, the best route was obtained with a maximum total score of 0.25. By considering the three criteria, the best route was obtained with a total optimum score of 2.96.
Application of the Fuzzy Mamdani Method to Predict the Number of Customers Based on the Weather and Holidays in a Simple Restaurant on Abdul Hakim Street Gultom, Parapat; Thianujaya, Wendy Thianujaya; Sirait, Annisa Hidayati; Kristian, Abel
Journal of Research in Mathematics Trends and Technology Vol. 6 No. 2 (2024): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v6i2.16642

Abstract

This research aims to optimize marketing strategies in the food industry byapplying the Fuzzy Mamdani method. This approach considers factors such as thenumber of customers, weather conditions, and holidays to forecast the number ofcustomers who will come to a simple restaurant. By using the Fuzzy Mamdanimodel, this research seeks to generate more effective marketing strategies bytaking into account variability in consumer behavior. The results of this researchare expected to help food business owners to optimize their raw material inventorymore precisely, so as to improve operational efficiency and increase customersatisfaction.
Analysis of Estimated Electricity Consumption of Medan City in 2024-2028 Using Fuzzy Mamdani Logic Gultom, Parapat; Thianujaya, Wendy
Journal of Research in Mathematics Trends and Technology Vol. 5 No. 1 (2023): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v5i1.16869

Abstract

This research employs fuzzy linear programming with Mamdani fuzzy logic to predict electricity consumption in Medan City. Data from the Central Statistics Agency (BPS) for the years 2019-2023, including population, electricity customers, Gross Regional Domestic Product (PDRB), and electricity consumption, were analyzed quantitatively. Data processing involved fuzzification, rule formation, rule composition, and defuzzification, with simulations and testing conducted using MATLAB software. The research findings indicate a forecasting error rate of 1.514%, demonstrating effective performance in predicting electricity consumption. Elasticity analysis reveals that electricity consumption in Medan City is significantly influenced by PDRB, providing crucial insights for future energy planning.
A Decision-Support Model for Football Squad Optimization: Integrating AHP-WASPAS and Binary Programming Gultom, Parapat; Ezra, Posman; Marpaung, Jonathan Liviera; Weber, Gerhard Wilhelm; Sentosa, Ilham
Journal of Research in Mathematics Trends and Technology Vol. 7 No. 1 (2025): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v7i1.18531

Abstract

Team composition in professional football remains a critical challenge due to subjective biases and the complexity of player performance metrics. This study proposes a multi-criteria decision-making (MCDM) approach to optimize the starting lineup of PSIS Semarang. The Analytical Hierarchy Process (AHP) was used to determine the importance of positional attributes, followed by the Weighted Aggregated Sum Product Assessment (WASPAS) to evaluate individual player preferences. A binary integer programming model was developed to construct the optimal eleven-player formation. The proposed formation was validated through simulation in Football Manager 2023. Results showed that a 4-3-3 formation consistently outperformed alternatives, leading to first-place rankings and a President’s Cup win in simulation trials. This integrated decision-support model demonstrates effectiveness in enhancing team selection strategies in professional football.
Co-Authors Abdul Munif Afryantika Pratiwi Aghni Syahmarani Akbar, Andini Alya Nadhira Nur Ananda Nabilah Faisal Andre Masago Manik Angginun Juwita Sari Anggita Rizki Defiani Hasibuan Apriliza, Yafika Arlina Nurbaity Lubis Arlina Nurbaity Lubis Asima Manurung Azwar, Nurul Azri Azzahra, Firza Bangun, Yohana Beby Karina Fawzeea Sembiring Binsar Nommensen Hasiolan Nababan Br Ginting, Emmita Chairi Indani Br Manalu Deby Nanda Sari Desy Denada Natalia Dian Natari Dwi Nurul Aisyah Eko Syafriadi Elikson Damanik Elisabet Siahaan Elly Rosmaini Elvin Juliani Gulo Endang Sulistya Rini ESM Nababan Esther S. M. Nababan Esther SM Nababan Eunike Al Grea Ezra, Posman Febriani Safitri Felly Ardan Fitria Khairani Ginting, Yoga Gilbert Halasan Sirait Hardiansyah Hardiansyah Hartini Pratiwi Pane Hasibuan, Gamal Ali Akbar Hasibuan, Syarinah Junianti Hulu, Gracelin Nonifati Indah Permata Sembiring Indris Simanungkalit Irmayanti Nasution Iskandar Situmorang Ismail Napitupulu Jean Probosky Ginting Jefri Leo Jonathan Liviera Marpaung Ketaren, Dahlia Rizky Khairunnisa Br Manurung Komarudin Komarudin Kristian, Abel Kurniasari, Rini Lestari, Nanda Loebis, Roma Ayni A. Mahyuddin K.M. Nasution Manalu, Mawar Winda Manulang, Dea Lonita Mardiningsih Mardiningsih Maris Stella Sitorus Marpaung, J.L. Matriadi, Faisal Meifanny Azri Shafira Mey Ramayanti Tinambunan Mhd Diky Setiawan Mhd Reza Irjaldi Hasibuan Miftah Khairani Mindasari, Eva Moudy Fitria Respati Muhammad Romy Syahputra Nababan, Esther Sorta Mauli Najang, Abdullah Nazli Ramadhani Lubis Normalina Napitupulu Novi Yanti Nur Amalia, Syahamah Octavianus, Handy Oka Simatupang Open Darnius paham ginting Paskah Riny Sirait Pratiwi, Annisa Rizki Prihatin Lumbanraja Pujiana, Perli Putra, Ramadhan Diansyah Putri Khairiah Nasution Rahmad Simanjuntak Rahmadhina, Namira Mudrikah Rajagukguk, Angie Maretha Rina Br. Bukit Riris Regita Cahyani Siagian Rita F. Dalimunthe Ritha F Dalimunthe Ritha F Dalimunthe Ritha F. Dalimunthe Ritha F. Dalimunthe Ritha F.Dalimunthe Ritonga , Ewy Lady Christin Robby Oksa Cornely Ronny Sung Roy Mulyadi Mardiyos RS, Yoppy Mairizon Ruslin Chaerul Cora Safira, Moza Saragih, Junawi Hartasi Sarah Madaniah Sartika Ningsih Sartika Ningsih Sawaluddin Sawaluddin Sawaluddin Sawaluddin Sawaluddin, Sawaluddin Sembiring, Erwandi Martinus Sentosa, Ilham Shabrina Tifani Siagian, Riris Regita Cahyani Siahaan, Elisabet Simbolon, Miranda Melania Nathasia Sipayung, Aquinaldo Boyfame R. Sirait, Annisa Hidayati Siregar, Ahir Diana Putri Siregar, Dwi Faradiba Sitepu, Lia Eriska Br Siti Nurhaliza Siti Raha Agoes Salim Sitompul, Weny Grace Situmorang, Theresa Sisilia Sonya Putri Suherwin Suherwin Sukaria Sinulingga Suryati Sitepu Sutarman Sutarman Sutarman Sutarman Suyanto Suyanto Suyanto Syahputra, Muhammad Romi Syahrika Luthfi T Khairunnisa Tambunan, Gilbert Pauly Hamonangan Tarigan, Miska Irani Tata Winda Lesmana Thianujaya, Wendy Thianujaya, Wendy Thianujaya Tulus Utari, Cutserly Weber, Gerhard Wilhelm Wibisono Wibisono Widyasari, Rina Wulandari, Annisa yeni absah Yohanna Yunitha Simangunsong