Department of Mathematics: Recent submissions
Now showing items 21-40 of 4336
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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 ... -
Implementasi Ant Colony Optimization (ACO) dalam Penyelesaian Travelling Salesmen Problem (Studi Kasus: PT. Canang Indah)
(Universitas Sumatera Utara, 2024)PT Canang Indah is a company engaged in the processing and production of coniferous wood (rubber). The resulting product is a board which is divided into two types, namely ParticleBoard and Medium Densitive FibreBoard ... -
Penaksiran Parameter Cox Proportional Hazard Regression pada Data Besar Menggunakan Stochastic Gradient Descent
(Universitas Sumatera Utara, 2024)Parameter estimation of Cox Proportional Hazard (CoxPH) regression models often faces challenges on large datasets. In this study, the Newton-Raphson method is compared with the Stochastic Gradient Descent (SGD) method to ... -
Klasifikasi Kelas pada Data Tidak Seimbang dalam Deteksi Mikrokalsifikasi Menggunakan Smote-Enn dan Xgboost dengan Optimasi Bayesian
(Universitas Sumatera Utara, 2024)Imbalanced data is a common problem in classification. Class classification on imbalanced data can be handled with two approaches, which are data level and algorithm level. The data level is used to balance the ... -
Pemodelan Angka Kematian Bayi di Provinsi Sumatera Utara Menggunakan Regresi Poisson Invers Gaussian
(Universitas Sumatera Utara, 2024)Poisson inverse Gaussian regression modeling is one of the regressions that can handle data containing overdispersion. Overdispersion is a condition where the variance value in the data is smaller than the average. In this ... -
Faktor-Faktor yang Mempengaruhi Tingkat Kriminalitas di Kota Medan Menggunakan Metode Stepwise Forward
(Universitas Sumatera Utara, 2024)Crime or criminality is rampant, crime is certainly influenced by various factors, both internal and external factors such as the number of population, the number of poor people, unemployment, the human development index ... -
Implementasi Model Sistem Dinamik terhadap Analisis Tingkat Kemacetan Lalu Lintas pada Jalan Setia Budi
(Universitas Sumatera Utara, 2024)Overcoming existing traffic congestion is something that many people hope for, especially people who are still always trapped in these traffic problems. One of the ways that can be used to reduce the level of traffic ... -
Algoritma Genetika pada Penyelesaian Multiple Travelling Salesmen Problem (M-TSP) (Studi Kasus: Jasa Pengangkutan CPO (Crude Palm Oil) PT. Miduk Arta Medan)
(Universitas Sumatera Utara, 2024)This research employs a Genetic Algorithm to solve the Multiple Traveling Salesmen Problem (M-TSP) in the context of Crude Palm Oil (CPO) distribution by PT. Miduk Arta Medan to three CPO processing plants in North Sumatra: ...