Sökning: "statistical models"

Visar resultat 1 - 5 av 1031 uppsatser innehållade orden statistical models.

  1. 1. Feature Selection for Microarray Data via Stochastic Approximation

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

    Författare :Erik Rosvall; [2024-03-18]
    Nyckelord :feature selection; feature ranking; microarray data; stochastic approximation; Barzilai and Borwein method; Machine Learning; AI;

    Sammanfattning : This thesis explores the challenge of feature selection (FS) in machine learning, which involves reducing the dimensionality of data. The selection of a relevant subset of features from a larger pool has demonstrated its effectiveness in enhancing the performance of various machine learning algorithms. LÄS MER

  3. 2. Weather Factors and E. coli Concentration in Barnviken, Malmö - A Linear Mixed Model Approach

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Elias Gullberg; [2024]
    Nyckelord :Linear Mixed Models; Mathematics and Statistics;

    Sammanfattning : Barnviken in Malmö has persistently encountered challenges associated with elevated concentrations of Escherichia coli (E. coli) without a discernible source of contamination. LÄS MER

  4. 3. Vuxnas synpunkter om främjandet av förskolebarns kostvanor : En kvantitativ studie om förskolans personal och vårdnadshavares synpunkter om samverkan och ansvar gällande barns kostvanor

    Uppsats för yrkesexamina på grundnivå, Karlstads universitet

    Författare :Ida Brokvist; Klara Danielsson; [2024]
    Nyckelord :Children s dietary habits; Communication; Cooperation; Distribution of roles; Preschool;

    Sammanfattning : In this study, we wanted to investigate, analyze and compare staff working in groups of children and the views of guardians regarding children's dietary habits in preschool. This to be able to draw conclusions about whether the collaboration works, whether it´s sufficient to promote children's dietary habits and who they believe the responsibility rests most heavily on. LÄS MER

  5. 4. Simulation-based discrimination of Crab pulsar models with XL-Calibur

    Master-uppsats, KTH/Fysik

    Författare :Dennis Åkerström; [2024]
    Nyckelord :Astroparticle Physics; Astrophysics; Detector Physics; Simulation; Theoretical Physics; Engineering Physics; Pulsar models; Crab pulsar; Astropartikelfysik; Astropartikelfysik; Detektorfysik; Simulering; Teoretisk Fysik; Teknisk Fysik; Pulsar modeller; Krabbpulsaren;

    Sammanfattning : Polarisation of X-ray light is being investigated with polarimeters to extend the borders of what can be observed. Distant compact objects, such as pulsars, that are to small on the sky to be analysed with imaging can be investigated by analysing the polarisation of the emitted light. This can reveal physics previously hidden by their small nature. LÄS MER

  7. 5. Assessing water balance and yields in Malawian cropping systems : maize soybean and maize Gliricidia systems resilience against climate change

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Danila Valeriano; [2024]
    Nyckelord :crop modelling; APSIM; Malawi; maize; soybean; Gliricidia; agroforestry; legume intercropping; climate predictions; climate adaptation; SDSM;

    Sammanfattning : In Malawi, maize monocultures are increasingly susceptible to extreme weather patterns, causing considerable yield reduction and heightened food insecurity for smallholder farmers dependent on rainfed subsistence agriculture. Diversifying cropping systems is crucial for ensuring yield resilience. LÄS MER