Department of Mathematics: Recent submissions
Now showing items 41-60 of 4343
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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: ... -
Pengoptimalan Biaya Transportasi dengan Metode Sirisha – Viola
(Universitas Sumatera Utara, 2024)Distribution is the process of channeling goods or products produced from producers to consumers. In the era of Industry 5.0, which is the era of collaboration between humans and technology in production and intense ... -
Penerapan Model Assignment dengan Metode Hungarian pada Optimalisasi Penugasan Karyawan
(Universitas Sumatera Utara, 2024)Part of linear programming that is often encountered in everyday life is the assignment problem. The assignment problem involves m workers who must be assigned to n jobs, each of which has different competencies in completing ... -
Analisis Pengendalian Persediaan Dua Jenjang dengan Kebutuhan Berdistribusi Normal dan Waktu Tenggang Tetap dengan Menggunakan Kebijakan N-Siklus-Tunggal
(Universitas Sumatera Utara, 2022)Inventory problems cover a wide scope, which can be found not only in manufacturing systems but also in non-manufacturing systems. Basically, inventory problems arise from events where there is too much inventory or too ... -
Penerapan Metode Improved Average Penalty Cost (IAPC) dengan Stepping Stone dalam Optimasi Biaya Transportasi Barang
(Universitas Sumatera Utara, 2024)Transportation problems are a common issue in the distribution of goods, focusing on the transportation costs from m sources to n destinations with the aim of minimizing transportation costs. Transportation issues are ... -
Penerapan Metode Fuzzy Service Quality dalam Analisis Kepuasan Pelayanan Kesehatan
(Universitas Sumatera Utara, 2024)Fuzzy logic is an element of Boolean logic, where fuzzy logic is used to handle the concept of degrees of truth between true and false (Yanif, et al, 2011; Henny, 2018). Fuzzy logic theory also provides a method for ... -
Implementasi Analisis Faktor dan Analisis Jalur dalam Mengidentifikasi Faktor-Faktor yang Memengaruhi Kemiskinan di Provinsi Aceh
(Universitas Sumatera Utara, 2024)This research implements factor analysis and path analysis methods to identify the factors that influence Poverty in Aceh Province. The data used is sourced from the Central Bureau of Statistics of Aceh Province in 2023. ... -
Kajian Integral Riemann Diperumum
(Universitas Sumatera Utara, 2024)Riemann integration theory integrates functions on a bounded interval [a,b]⊆R as a Riemann sum approach (integral) where the fineness of the partitions is controlled by a number (norm) ‖P‖. In Generalized Riemann integral ... -
Pemodelan Regresi dengan Pendekatan Generalized Linear Models pada Kasus Tuberkulosis di Sumatera Utara
(Universitas Sumatera Utara, 2024)Generalized Linear Models (GLM) are used to model data when the distribution of the response variable is part of the exponential family. The negative binomial distribution and the Poisson distribution are examples of ... -
Analisis Perbandingan Model Regresi Linier Metode Forward Selection, Backward Elimination, dan Stepwise Regression (Studi Kasus Pendapatan Oli Mesin pada UD. Bengkel Mobil Abadi)
(Universitas Sumatera Utara, 2024)In selecting variables for a regression model, independent variables can explain the dependent variable and meet the assumptions of linear regression so that the regression model is BLUE (Best Linear Unbiased Estimator). ... -
Penalized Maximum Likelihood Estimation dengan Algoritma Gradient Descent pada Model Regresi Logistik Multinomial
(Universitas Sumatera Utara, 2024)Maximum likelihood estimation (MLE) is commonly used for parameter estimation of statistical models, including multinomial logistic regression. However, multicollinearity in logistic regression limits its use. Penalized ... -
Penaksiran Parameter Model Regresi Logistik Multinomial Menggunakan Metode Optimasi Stochastic Gradient Descent dengan Quasihyperbolic Momentum pada Dataset Besar
(Universitas Sumatera Utara, 2024)In multinomial logistic regression parameter estimation using maximum likelihood estimation, numerical approach with optimization method is used to get the best estimated parameters of the mentioned model. The optimization ... -
Analisis Regresi Logistik Biner pada Penyakit Polycystic Ovary Syndrome (PCOS)
(Universitas Sumatera Utara, 2024)Binary logistic regression is a statistical analysis technique that is useful for analyzing the relationship between independent variables and dependent variables that are binary. In the health field, binary logistic ... -
Penerapan Metode Fuzzy Dematel untuk Menentukan Kriteria Terbaik Yang Mempengaruhi Kepuasan Karyawan (Studi Kasus : Pt. Modern Plasindo Mutiara)
(Universitas Sumatera Utara, 2024)The level of employee satisfaction is a key factor in the effective management of human resources, as it can have a significant impact on company productivity. Consequently, it is incumbent upon a company to identify and ...