Department of Mathematics: Recent submissions
Now showing items 21-40 of 4343
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Penentuan Outlier pada Data Multivariat Berbasis Jarak dengan Kuantil
(Universitas Sumatera Utara, 2020)The quantile model is a method for detecting data that is classified as outliers. There are many methods that have been applied by researchers before. Some of them are the minimum volume ellipsoid (MVE) method, the minimum ... -
Jumlahan Jarak Hamming Berbobot
(Universitas Sumatera Utara, 2020)The Hamming distance between two binary digits is the number of differences be- tween two series of binary numbers that have the same length according to the position of each binary digit. The sum of the Hamming distances ... -
Pengelompokan Data Kasus Covid-19 di Sumatera Utara dengan Metode K-Means
(Universitas Sumatera Utara, 2022)Cluster is a multivariate technique that aims to classify objects into different groups from one group to another. Objects that have been classified in one cluster are objects that have the same relative distance proximity ... -
Perbandingan Fuzzy AHP-SAW dan Fuzzy AHP-VIKOR dalam Pemilihan SPF Tabir Surya Wajah
(Universitas Sumatera Utara, 2024)Sunscreen is a crucial skin care product for maintaining healthy skin from the sun. One of the important ingredients in it is Sun Protection Factor or SPF. In its selection, the Analytical Hierarchy Process method is widely ... -
Penerapan Teori Permainan dalam Menentukan Strategi Pemasaran Optimum pada Produk Mi Instan (Mie Sedaap, Gaga, dan Supermi) di Lingkungan Mahasiswa Matematika Universitas Sumatera Utara
(Universitas Sumatera Utara, 2024)Instant noodle consumption in Indonesia has continued to increase in the last few years, which indicates that there are more business opportunities for instant noodle products in Indonesia. Proved by the number of instant ... -
Analisis Kualitas Pelayanan Sekolah SMAN 1 Berastagi Terhadap Kepuasan Siswa dengan Metode Importance Performance Analysis (IPA)
(Universitas Sumatera Utara, 2024)In improving the quality of service to provide satisfaction to students, SMAN 1 Berastagi needs efforts to meet student expectations, so that students get satisfaction with the services provided by SMAN 1 Berastagi. Student ... -
Analisis Pengaruh Faktor - Faktor Customer Relationship Marketing terhadap Loyalitas Nasabah Menggunakan Metode Analisis Regresi Linier Berganda
(Universitas Sumatera Utara, 2024)In this research multiple linear regression analysis discussed, where data analysis is first carried out. Many factors affect loyalty, including customer relationship marketing with the dimensions of communication, commitment ... -
Optimisasi Transportasi pada Lingkungan Kabur dengan Penerapan North West Corner Method dan Fuzzy Modified Distribution Method (Studi Kasus: Distribusi Jagung di Desa Pamah, Kecamatan Tanah Pinem, Kabupaten Dairi)
(Universitas Sumatera Utara, 2024)Distribution of agricultural commodities to processing industries requires quite large costs. This is caused by suboptimal allocation. Optimal allocation must take into account differences in transportation distribution ... -
Analisis Produksi Pengasinan Ikan Basah dan Jumlah Produksi yang Optimal dengan Menggunakan Metode Goal Programming
(Universitas Sumatera Utara, 2023)Production is the process of creating additional value from goods and services in various forms. Then, to increase productivity and meet consumer needs, production factors are added with profit, form, time and location. ... -
Analisis Regresi Logistik Ordinal pada Pengaruh Pelayanan terhadap Tingkat Kepuasan Pasien Rawat Inap di Rumah Sakit Murni Teguh Medan
(Universitas Sumatera Utara, 2024)Hospitals as health service providers play an important role in supporting public healt by providing high quality services, especially in providing optimal services for inpatients. Patient satisfaction is the main indicators ... -
Analisis Output Model Aliran Darah Arteri Brakialis Menggunakan Model Fluida Casson
(Universitas Sumatera Utara, 2024)Blood flow modeling is a crucial area of research in medicine and biomedical engineering. This study aims to analyze the output of a blood flow model in the brachial artery, specifically using the Casson fluid model. ... -
Penerapan Logic Fuzzy Inference System Metode Mamdani untuk Menentukan Jumlah Produksi
(Universitas Sumatera Utara, 2024)The fuzzy inference system in making daily decisions is usually based on assumptions, ensuring that every decision always produces results that are uncertain and ambiguous. Decision-making in production planning has ... -
Implementasi Fuzzy Time Series Markov Chain untuk Peramalan Inflasi
(Universitas Sumatera Utara, 2024)The Fuzzy Time Series Markov Chain method has the ability to manage complex and unstable Time Series data, and provide more accurate predictions by minimising forecasting errors. In this study, the Fuzzy Time Series Markov ... -
Analisis Tail Value at Risk Pada Saham Blue Chip dengan Pendekatan Copula Gaussian
(Universitas Sumatera Utara, 2024)When doing investments, investors usually want high returns with low risk. However, the fact that often occurs is that high profits are obtained with high risk (high return high risk), and vice versa. Therefore, to help ... -
Penerapan Regularisasi Lasso dan Ridge dalam Mengatasi Masalah Multikolinearitas pada Matriks Kovarians
(Universitas Sumatera Utara, 2024)The covariance matrix is a relationship measure of how far two or more random variables vary together. In the context of modelling and processing more complex data, the covariance matrix can experience very high multicollinearity ... -
Analisis Kepuasan Menggunakan Regresi Logistik Ordinal di Sonatine Piano Pematang Siantar
(Universitas Sumatera Utara, 2024)Ordinal logistic regression is used to analyze the relationship between ordinal scaled dependent variables and independent variables. In this study, ordinal logistic regression is applied to determine the factors that ... -
Kajian Model Dinamik Predator-Prey untuk Keberlanjutan Tumbuhan terhadap Gangguan Herbivora
(Universitas Sumatera Utara, 2024)The Holling Type II functional response in this study is used to analyze the interaction between plants as prey and herbivores as predators. The mathematical model utilized is based on the extended Lotka-Volterra equations ... -
Kajian Metode Analisis Spektral pada Peramalan Curah Hujan
(Universitas Sumatera Utara, 2024)Spectral analysis can be used to reveal periodic patterns contained in rainfall data. Data analysis using statistical tools and spectral analysis is applied to investigate and interpret the temporal course of the available ... -
Penaksiran Parameter Distribusi Weibull Menggunakan Maksimum Likelihood dan Ant Colony Optimization
(Universitas Sumatera Utara, 2024)Maximum Likelihood is a commonly used statistical method to estimate the parameters of probabilistic models. Ant Colony Optimization is a heuristic method that performs search in optimization using a system of ... -
Penerapan Model Antrian Jaringan Jackson pada Antrian Pengunjung di Dinas Kependudukan dan Pencatatan Sipil Kabupaten Batu Bara
(Universitas Sumatera Utara, 2024)Queues are a common problem in society, queues can occur because the level of service demand is greater than the level of facility capacity to provide services. Jackson network queue is a queue model used to describe a ...