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All Journal Sinkron : Jurnal dan Penelitian Teknik Informatika Desimal: Jurnal Matematika Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Journal of Saintech Transfer Journal of Research in Mathematics Trends and Technology Journal of Mathematics Technology and Education Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Mardiningsih
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Agriculture, Biological Sciences & Forestry 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 Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Existence of Polynomial Combinatorics Graph Solution Mardiningsih; Suwilo, Saib; Hasbiyati, Ihda
Journal of Research in Mathematics Trends and Technology Vol. 2 No. 1 (2020): 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.v2i1.3755

Abstract

The Polynomial Combinatorics comes from optimization problem combinatorial in form the nonlinear and integer programming. This paper present a condition such that the polynomial combinatorics has solution. Existence of optimum value will be found by restriction of decision variable and properties of feasible solution set or polyhedra.
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.
A fuzzy goal programming model with probabilistic constraints based on the poisson distribution Khairiyah Manurung, Silvi; Mardiningsih; Saib Suwilo
Desimal: Jurnal Matematika Vol. 8 No. 3 (2025): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v8i3.202529493

Abstract

Uncertainty and fuzzy ambiguity often complicate multi-objective decision-making, especially when discrete random events influence system behavior, making classical deterministic models insufficient. This study aims to develop a Probabilistic Fuzzy Goal Programming (PFGP) model that incorporates the Poisson distribution by reformulating the right-hand side (RHS) constraints into probabilistic expressions to more accurately represent discrete uncertainty. The methodological approach includes revisiting PFGP theory, defining decision variables and fuzzy aspiration levels, constructing probabilistic constraints, and applying the Poisson distribution to characterize randomness in constraint parameters, with the probabilistic constraints subsequently transformed into deterministic equivalents using the Poisson quantile function to ensure computational tractability. The results demonstrate that the proposed Poisson-based PFGP model produces more realistic, flexible, and robust decision alternatives in dynamic environments involving event-count data. The study contributes a Poisson-driven quantile reformulation mechanism for RHS constraints, offering a novel and effective pathway for handling discrete uncertainty within multi-objective fuzzy optimization.
Empowerment of cake SMEs in Laras Village through profit optimization Maulida Yanti; Mardiningsih; Putri Khairiah Nasution; Enita Dewi Br Tarigan
Journal of Saintech Transfer Vol. 8 No. 2 (2025): Publication in Press
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v8i2.19774

Abstract

In a village, called Laras, there is a small business (SME) that produces wet and dry cookies, marketed on a small scale. The problems faced by the SMEs include the lack of a strategic and easily accessible stall for the public, as well as minimal product promotion being conducted. Several important indicators in optimizing product sales results can be achieved through packaging design, shelf availability, and effective marketing. To address these issues, the Community Service Team provided a workshop to enhance skills related to the making of packaging label and marketing techniques. The abdimas team also provided an attractive shelving unit as a place to display the cakes to facilitate sales and make them visible to the surrounding community. In the end, a paired t-test was used to measure the benefits of the service provided. Based on the questionnaire data, the t-test statistic value obtained is |-65.21| = 65.21 > t-table value 1.699, hence it can be concluded that there was an improvement outcome after the service was conducted.
Co-Authors Annisa Enita Dewi Br Tarigan Febby Arisca Zurfani Harahap, Desti Alannora Herman Mawengkang Hutahaean, Trisna D Khairiyah Manurung, Silvi Marpongahtun Maulida Yanti Miranda Nababan, Esther S.M. Nadhila, Nurul Novita Sari Parapat Gultom Pujiana, Perli Putri Khairiah Nasution Rambe, Isnaini Halimah Saib Suwilo Saib Suwilo Sawaluddin Sutarman Suyanto Syahputra, MR Syahputra, Muhammad Romi Tarigan, Ruffiana Tulus