Sökning: "Johan Millberg"

Hittade 2 uppsatser innehållade orden Johan Millberg.

  1. 1. Evaluating clustering techniques in financial time series

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Johan Millberg; [2023]
    Nyckelord :clustering; machine learning; financial time series; time series; unsupervised learning; cluster validation; cluster evaluation; klustring; klusteranalys; finansiella tidsserier; maskininlärning; klustervalidering; evalueringsteknik;

    Sammanfattning : This degree project aims to investigate different evaluation strategies for clustering methodsused to cluster multivariate financial time series. Clustering is a type of data mining techniquewith the purpose of partitioning a data set based on similarity to data points in the same cluster,and dissimilarity to data points in other clusters. LÄS MER

  3. 2. Design of Optical Magnetic Systems for Terahertz Lensing

    Kandidat-uppsats, Uppsala universitet/FREIA

    Författare :Gustav Lidberg; Karl Pontén; Johan Millberg; [2021]
    Nyckelord :Terahertz; Graphene; Optics; Magnets; Optical Magnetic Lens;

    Sammanfattning : When graphene is subjected to magnetic fields, it can be used as an optical device with light in the terahertz region. The functionality of the graphene depends on which magnetic field profile is influencing it. In this project, magnet configurations producing uniform and quadratic magnetic field profiles were studied. LÄS MER