Sökning: "generalized linear mixed models"

Visar resultat 1 - 5 av 21 uppsatser innehållade orden generalized linear mixed models.

  1. 1. Implementing SAE Techniques to Predict Global Spectacles Needs

    Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Yuxue Zhang; [2023]
    Nyckelord :small area estimation; area-level model; empirical best linear unbiased prediction EBLUP ; generalized linear mixed models; Conditional Autoregressive; spatial correlation; spectacle needs; assistive products; auxiliary data; hglm; relative standard error; simulation;

    Sammanfattning : This study delves into the application of Small Area Estimation (SAE) techniques to enhance the accuracy of predicting global needs for assistive spectacles. By leveraging the power of SAE, the research undertakes a comprehensive exploration, employing arange of predictive models including Linear Regression (LR), Empirical Best Linear Unbiased Prediction (EBLUP), hglm (from R package) with Conditional Autoregressive (CAR), and Generalized Linear Mixed Models (GLMM). LÄS MER

  3. 2. Exploring the factors affecting tree establishment after wildfire in a boreal forest in Sweden

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Robert Pim; [2023]
    Nyckelord :tree regeneration; tree establishment; wildfire; boreal forests; disturbance; sapling regeneration; generalized linear mixed models;

    Sammanfattning : The factors affecting tree establishment in boreal forests after fire will help determine the community composition of the regenerating forest. These may have large consequences on the community dynamics for years after the fire disturbance. LÄS MER

  4. 3. Wild boar habitat selection in south-central Sweden's forested habitats : effects of season and time

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Bengt Arvid Norström; [2023]
    Nyckelord :wild boar; habitat selection; GLMM; Sweden;

    Sammanfattning : How wild boar utilize space, interact, and affect its surroundings is critical for understanding their ecology. Wild boar populations have increased rapidly in Sweden and continue to expand its distributional range further north. LÄS MER

  5. 4. Effects of management and plant traits on tree-related microhabitats in second-growth stands of the Białowieża Forest

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Weronika Mysiak; [2022]
    Nyckelord :tree-related microhabitats; TreMs; Białowieża Forest; post-Century stands; second-growth forest;

    Sammanfattning : The study presents research conducted on Tree-related Microhabitats (TreM) in managed stands and nearly unmanaged stands in the Białowieża Forest (BF). A TreM is an above-ground structure that creates substrate, site or place for forest-dwelling species, and could be an important tool for assessing the level of biodiversity. LÄS MER

  7. 5. Testing the Dear Enemy Hypothesis in a group-living cichlid fish : Dear Enemy relationships in Neolamprologus multifasciatus in Lake Tanganyika

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Robin Olofsson; [2022]
    Nyckelord :Neolamprologus multifasciatus; dear enemy effect; territorial behavior; neighbor recognition; dominant male.;

    Sammanfattning : The dear enemy effect is a widespread behavioral phenomenon that promotes selective pacifism in order to minimize costs of territorial defense. The dear enemy hypothesis predicts heightened aggression towards unfamiliar conspecifics compared to familiar neighbors where territorial boundaries are established. LÄS MER