Sökning: "Mathematics and Statistics"

Visar resultat 1 - 5 av 901 uppsatser innehållade orden Mathematics and Statistics.

  1. 1. Hand Gesture Classification using Millimeter Wave Pulsed Radar

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Eda Dagasan; [2020]
    Nyckelord :Hand Gesture Classification; Millimeter Wave Radar; Statistical Signal Processing; Time-Frequency Analysis; Room Impulse Response Estimation; Sparse Dictionary Learning; Classification; Supervised Learning; Convolutional Neural Networks; k-Nearest Neighbor; Mathematics and Statistics;

    Sammanfattning : Millimeter wave pulsed radar has found many applications, among them hand gesture sensing, which this work has as purpose. This application has already shown good potential, [1], and here in this work robustness aspects are taken into account. LÄS MER

  2. 2. Modeling asymmetry in volatility response - non-Gaussian innovations approach

    Magister-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Ludvig Göransson; [2020]
    Nyckelord :ARCH; GARCH; APARCH; Asymmetric GARCH; non-Gaussian innovations; Laplace distribution; Leverage effect; Stylized facts; Volatility process.; Mathematics and Statistics;

    Sammanfattning : This thesis is an explorative note on the non-Gaussian innovations of the volatility process. More specifically, the thesis investigates if the decomposition of the Standard Classical Laplace (SCL) distribution to a difference of two exponential is a valid alternative to modelling the asymmetric volatility processes, taking volatility clustering, the leverage effect and asymmetric response in volatility into account. LÄS MER

  3. 3. On Valuation of Observations in Linear Regression Models

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Mattias Jönsson; [2020]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : In the Machine Learning field, more and more of the data collection is commercialised, even with monetary rewards to people and organisations for providing input data for models. Even if data collection is not associated with direct costs for the researcher, there are many cases where there are indirect, or circumstancial, costs associated with it. LÄS MER

  4. 4. Nonlinear Instability of Evolution Equations

    Master-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematik LTH

    Författare :Emil Engström; [2020]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : In this thesis we explore the connection between spectral stability and nonlinear stability of evolution equations. Using semigroup theory a result on nonlinear instability from spectral instability is proven. LÄS MER

  5. 5. När har all Sveriges skog brunnit ned? En studie över svenska skogsbränder under åren 1998 till 2018.

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Johan Byström; Jakob Fjellström; [2020]
    Nyckelord :GLM; Linear Regression; Time-Series; Negative Binomial Distribution; Mathematics and Statistics;

    Sammanfattning : This thesis uses a data material from the Swedish Civil Contingencies Agency (MSB) to analyze forest fires in Sweden between 1998 and 2018. The thesis also uses weather data (precipitation and average temperature) as explanatory variables in two different regression models. LÄS MER