Essays about: "Stella Säfström"

Found 2 essays containing the words Stella Säfström.

1. 1. Imbalanced Predictions

   University essay from Lunds universitet/Statistiska institutionen

   Author : Stella Säfström; [2022]
   Keywords : Imbalanced data; cost-sensitive learning; SMOTE; random undersampling; Mathematics and Statistics;

   Abstract : The aim of the thesis is to evaluate solutions to the class imbalance problem using real world data sets with varying degrees of class imbalance. The analysis is limited to binary classification. Three large data sets relating to credit card fraud, vehicle insurance and heart disease are used for the analysis. READ MORE

3. 2. Predicting the Unobserved : A statistical analysis of missing data techniques for binary classification

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Stella Säfström; [2019]
   Keywords : Random forest; logistic regression; imputation; classification; MCAR; missing data; imbalanced data;

   Abstract : The aim of the thesis is to investigate how the classification performance of random forest and logistic regression differ, given an imbalanced data set with MCAR missing data. The performance is measured in terms of accuracy and sensitivity. READ MORE