ARRUS Journal of Mathematics and Applied Science, Vol. 3 No. 1 (2023) (June 2023) – 6 articles

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Analysis of Stock Portfolio Optimization in the Telecommunications Sector Using the Single Index Model

by Irwan, Muhammad Abdy, Nurul Khofifah Salsabila, Ansari Saleh Ahmar

ARRUS Journal of Mathematics and Applied Science 3(1), 1-10; https://doi.org/10.35877/mathscience1734 - 2023-06-30

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Abstract The purpose of this study was to determine the optimal portfolio in the telecommunications sector listed on the Indonesia Stock Exchange based on the Jakarta Composite Index for the period January 2018–December 2020 using the Single Index Model. This type of research is an applied research. [...] Read more.

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K-Prototype Algorithm in Grouping Regency/City in South Sulawesi Province Based on 2020 People's Welfare

by Muhammad Refaldy, Suwardi Annas, Zulkifli Rais

ARRUS Journal of Mathematics and Applied Science 3(1), 11-19; https://doi.org/10.35877/mathscience1763 - 2023-06-30

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Abstract Clustering is something that is used to analyze data in machine learning, data mining, pattern engineering, image analysis, and bioinformatics. To produce the information needed for a data analysis using the clustering process, this is because the data has a large variety and amount. [...] Read more.

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Cluster Analysis Using Ensemble ROCK Method in District/City Grouping in South Sulawesi Province based on People's Welfare Indicators

by Taufiq Hidayat, Ruliana, Zulkifli Rais, Miguel Botto-Tobar

ARRUS Journal of Mathematics and Applied Science 3(1), 20-30; https://doi.org/10.35877/mathscience1761 - 2023-06-30

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Abstract Cluster analysis is a data mining technique used to group data based on the similarity of attributes of object data. One of the problems that are often encountered in cluster analysis is data with a mixed categorical and numerical scale. The clustering stage for mixed data using the ensemble [...] Read more.

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Cluster Analysis of New Students at STKIP Pembangunan Indonesia during the COVID-19 Pandemic Based on Regional Origin

by Sutamrin, Khadijah, Isma Muthahharah

ARRUS Journal of Mathematics and Applied Science 3(1), 31-37; https://doi.org/10.35877/mathscience1740 - 2023-06-30

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Abstract This study aims to determine the distribution of origins of prospective new STKIP Pembangunan Indonesia students during the COVID-19 pandemic based on the student's name, religion adopted, chosen study program, and sources of information on new student admissions. The method used is [...] Read more.

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Analysis of Learning Difficulties for Students of MAN 2 Makassar

by Nadya Maharani Vega, Annisa Anugrah Damaiyanti, A. S. Muhammad Arhamar, Agung Wijaya Ami, Saparuddin

ARRUS Journal of Mathematics and Applied Science 3(1), 38-46; https://doi.org/10.35877/mathscience1768 - 2023-06-30

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Abstract One of the causes of the decline in the quality of education is the large number of students who experience learning difficulties. The purpose of this study was to determine the learning difficulties experienced by students in class XI MAN 2 Makassar. The aspects observed in learning [...] Read more.

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Analysis of Students' Self-Confidence in Class XI MIPA Learning at UPT SMAN 1 Gowa

by Magfira Herman, Asfiana, Nurfatin Fadillah, Herlianty Tri Dimas Ayuningtyas, Saparuddin

ARRUS Journal of Mathematics and Applied Science 3(1), 47-54; https://doi.org/10.35877/mathscience1776 - 2023-06-30

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Abstract This study uses a descriptive research approach with quantitative methods. It was carried out at UPT SMAN 1 Gowa with a population of XI MIPA student consisting of 8 classes. The research sample consisted of 36 people who were randomly selected. The instrument used was a student [...] Read more.