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All Journal Sinkron : Jurnal dan Penelitian Teknik Informatika Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Journal of Research in Mathematics Trends and Technology Journal of Mathematics Technology and Education Jurnal Bastra (Bahasa dan Sastra) 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 Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Journal : Journal of Research in Mathematics Trends and Technology

 1 
Efficiency of Environmental Performance Measurement Using Data Envelopment Analysis (DEA) With Fuzzy Approach: English Nadhila, Nurul; Tulus; Mardiningsih
Journal of Research in Mathematics Trends and Technology Vol. 7 No. 2 (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.v7i2.21717

Abstract

This study aims to analyze and measure environmental performance efficiency in residential areas in Medan City using the Data Envelopment Analysis (DEA) method combined with a fuzzy approach. Environmental performance is measured based on relevant inputs and outputs, where the data used are secondary data obtained from previous research reports. Fuzzification is applied to address uncertainty in the data by converting input and output values into Triangular Fuzzy Numbers (TFN). The results of the study show that out of the 4 Decision Making Units (DMUs) studied without using the fuzzy approach, only the Helvetia housing complex achieved 100% efficiency. Meanwhile, the efficiency values for Tuntungan, Martubung, and Johor housing estates were 85.92%, 88.69%, and 94.87%, respectively. When the fuzzy approach was applied, the efficiency values of the Johor and Helvetia housing estates reached 100% efficiency, while the Tuntungan and Martubung housing estates had an efficiency of 78.22%, indicating inefficiency. This inefficiency is caused by excessive use of drainage inputs, indicating that these housing complexes are unable to produce environmental outputs commensurate with the inputs used. This study recommends improving the quality and quantity of environmental management and cleanliness, as well as the availability and quality of green spaces, to enhance environmental efficiency in housing. The findings of this study provide important insights into the efficiency of environmental performance measurement and highlight opportunities for improvement in environmental management within housing.
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.
Co-Authors Aisyatur Rohmah Annisa Badriyah Wulandari Febby Arisca Zurfani Harahap, Desti Alannora Herman Mawengkang Hutahaean, Trisna D Marpongahtun Miranda Nababan, Esther S.M. Nadhila, Nurul Novita Sari Parapat Gultom Pujiana, Perli Rambe, Isnaini Halimah Saib Suwilo Sawaluddin Sutarman Suyanto Syahputra, MR Syahputra, Muhammad Romi Tarigan, Ruffiana Tulus