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All Journal Journal of Research in Mathematics Trends and Technology
Nababan, Esther S.M.
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Decision Sciences, Operations Research & Management Mathematics

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Production Optimization Using Fuzzy Linear programming Method (Case Study: UMKM Untir-untir and Raja Manis Factory) Nababan, Esther S.M.; Sihaloho, Agnes; Husna, Khatimatul; Ilham, Rafida
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.v4i2.16640

Abstract

Production efficiency and performance optimization in a company can be achieved by using an optimization model. An optimisation model can be written in a function of equation and equation known as a Linear Program. A Linear program can be combined with a fuzzy value to adjust a production problem model that is heavily dependent on an unstable supply. This modeling is known as Fuzzy Linear programming. Using Fuzzy Linear programming, the production problems of micro, small and medium-sized enterprises Untir-untir and King Sweet are analyzed and solved with the heLP of simulation programs. Fuzzy Linear programming solutions use simplex methods using POM-QM software to complete complex calculations. Completion with the fuzzy simplex method consists of several steps namely calculating the optimal bottom and upper boundaries with the maximizing simplex technique, modifying the initial equation by adding the variable λ, and finishing it with the two-phase simplex approach. Results of completion with the simulation program showed the estimated amount of profit using the Linear Program equation of Rp. 1,378,723 and using the Fuzzy Linear programming equation with a 10% tolerance of Rp. 1,447,470.
Integration of AHP and VIKOR Method to Select the Optimum Destination Route Gultom, Parapat; Miranda; Nababan, Esther S.M.; Mardiningsih; Suyanto
Journal of Research in Mathematics Trends and Technology Vol. 6 No. 1 (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.v6i1.17717

Abstract

Using a variety of criteria, group decision-making is a popular method for rating possibilities. Here, we assess each choice based on the same standards. AHP and VIKOR techniques have been proposed to address the problem of creating detours to the historical tourism attractions of Medan City. This study modifies the VIKOR technique to identify a feasible solution while evaluating options with both narrow and broad requirements. This study provides numerical examples based on case studies to illustrate the application of the proposed model and assess the effectiveness of this approach modification. The results show that the updated strategy is effective and realistic.
Co-Authors Husna, Khatimatul Ilham, Rafida Mardiningsih Miranda Parapat Gultom Sihaloho, Agnes Suyanto