Sökning: "Machine learning"

Visar resultat 1 - 5 av 2733 uppsatser innehållade orden Machine learning.

  1. 1. Bot or Human: Identifying Bot­Generated Clicks Using Machine Learning

    Kandidat-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :FILIP BORG; AXEL BROBECK; SAGA KORTESAARI; NERMIN SKENDEROVIC; ARVID SUNDBOM; CHARLES SUNDSTRÖM; [2021-09-14]
    Nyckelord :;

    Sammanfattning : “I’m not a robot” is a common CAPTCHA (Completely Automated PublicTuring test to tell Computers and Humans Apart) often shown today uponentering websites. The purpose behind the challenge is to distinguish hu mans from robots, or bots. However, the user experience becomes somewhatintrusive and is not always viable for many websites. LÄS MER

  2. 2. Interactive Ecosystem Simulator

    Kandidat-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :JOHAN ATTERFORS; CARL HOLMBERG; ALEXANDER HUANG; ROBIN KARHU; BRAGE LAE; ALEXANDER LARSSON VAHLBERG; [2021-09-07]
    Nyckelord :Ecosystem; Simulation; Unity; AI; ML; RL; ABM; GA; PCG; Welford;

    Sammanfattning : As ecosystems are complex domains, both analytical and computer-aided modelscan aid in gaining insights about their dynamics. One such computer-aided modelis the concept of ecosystem simulation. This project aims to build an interactiveand visual ecosystem simulation in the Unity game engine. LÄS MER

  3. 3. Driver Behavior Classification in Electric Vehicles

    Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :FEDERICA COMUNI; CHRISTOPHER MÉSZÁROS; [2021-07-06]
    Nyckelord :Aggressive driver behavior; Driver behavior classification; Self-attention; Recurrence plots; active learning; Active deep dropout; Gradual pseudo labeling;

    Sammanfattning : Studies have shown that driving style affects the energy consumption of electric vehicles, with aggressive driving consuming up to 30% more energy than moderate driving. Therefore, modeling of aggressive driving can provide a more precise estimation of the energy consumption and the remaining range of a vehicle. LÄS MER

  4. 4. Who’s managing earnings? A personality study of earnings management - Using algorithms to analyze how CEO personality traits engage in earnings management

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Kenneth Holmberg; Victor Appelgren; [2021-06-24]
    Nyckelord :Earnings management; Big Five Personality Traits; Chief executive officer;

    Sammanfattning : MSc in Accounting and Financial Management.... LÄS MER

  5. 5. Principal Component Analysis and the Cross-Sectional Variation of Returns

    Kandidat-uppsats,

    Författare :Armin Ramovic; Mikael Åkerman; [2021-06-23]
    Nyckelord :Principal Component Analysis; PCA; principal components; cross-sectional variation of returns; risk premia; asset pricing; demensionality reduction; risk factors; machine learning;

    Sammanfattning : We utilize Principal Component Analysis (PCA), a dimensionality reduction technique, on a set of 142 risk factors, including macroeconomic factors, proposed in financial literature to construct factor models with high explanatory powers when analysing the cross-sectional variation of portfolio returns. We apply a Fama and Macbeth (1973) two-pass regression to estimate risk premia commanded by our principal components. LÄS MER