Essays about: "Mathematics and Statistics"

Showing result 1 - 5 of 574 essays containing the words Mathematics and Statistics.

  1. 1. Hierarchical Clustering of Time Series using Gaussian Mixture Models and Variational Autoencoders

    University essay from Lunds universitet/Matematisk statistik

    Author : Per Wilhelmsson; [2019]
    Keywords : Clustering; Deep Learning; Machine Learning; Time Series; Variational Autoencoders; Gaussian Mixture Models; Mathematics and Statistics;

    Abstract : This thesis proposes a hierarchical clustering algorithm for time series, comprised of a variational autoencoder to compress the series and a Gaussian mixture model to merge them into an appropriate cluster hierarchy. This approach is motivated by the autoencoders good results in dimensionality reduction tasks and by the likelihood framework given by the Gaussian mixture model. READ MORE

  2. 2. Classification of High Risk Prostate Cancer using Deep Learning

    University essay from Lunds universitet/Matematik LTH

    Author : Elin Olofsson; [2019]
    Keywords : Prostate Cancer; CNN; Deep Learning; PRIAS; Active Surveillance; Digital Pathology; Mathematics and Statistics;

    Abstract : Prostate cancer is one of the most common types of cancer for men, making proper diagnostic essential. Using machine learning as a tool to help in digital pathology has become increasingly popular and helps to limit the high intra observer variability between pathologists. READ MORE

  3. 3. MODELING CAPITAL ASSET RETURNS ON THE SWEDISH STOCK MARKET - An evaluation of Fama French’s Five Factor Model against its predecessors

    University essay from Lunds universitet/Statistiska institutionen

    Author : Kristoffer Bergram; Ludvig Göransson; [2019]
    Keywords : asset pricing modeling; time series regression; statistics; Fama French Five Factor model; Carhart Four Factor model; Fama French Three Factor model; Swedish stock market; portfolio theory; behavioral economics; Mathematics and Statistics; Business and Economics;

    Abstract : This thesis compared the explanatory rate of three asset pricing models related to excess returns on the Swedish stock market. A more granular evaluation of each model’s factors was also conducted. A random sample of 90 companies was drawn from the Stockholm Stock Exchange (N = 371) using a Blomberg terminal. READ MORE

  4. 4. VIRTUAL AND REAL

    University essay from Lunds universitet/Industridesign

    Author : Yifan Li; [2019]
    Keywords : Arts and Architecture; Technology and Engineering;

    Abstract : According to the statistics from Programme for International Student Assessment (PISA) and Trends in International Mathematics and Science Study (TIMSS), a continuously declining trend is showed in Swedish kids' mathematical performance during recent years. In comparison with other OECD countries, the mathematical literacy of 15-year-old students in Sweden is almost below average. READ MORE

  5. 5. Approximation of Pi

    University essay from Lunds universitet/Matematik LTH

    Author : Madeleine Jansson; [2019]
    Keywords : Mathematics and Statistics;

    Abstract : The inverse tangent function can be used to approximate pi. When approximating pi, the convergence of infinite series or Products are of great importance for the accuracy in the digits in pi. This thesis will present historical Formulas used to approximate pi, especially Gregory-Leibniz and Machin's. READ MORE