Sökning: "variable importance"

Visar resultat 1 - 5 av 358 uppsatser innehållade orden variable importance.

  1. 1. Predicting True Sepsis and Culture-positive Sepsis in Intensive Care Unit with Machine Learning Techniques

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Zeyuan Wu; [2024]
    Nyckelord :Machine Learning; Diagnosis of Sepsis; XGBoost; Logistic Regression; Mathematics and Statistics;

    Sammanfattning : Sepsis, a serious medical condition often leading to patients requiring intensive care, has prompted numerous scientists to employ mathematical techniques to aid in its diagnosis. This thesis uses logistic regression and a machine learning technique, XGBoost, to predict true sepsis (as opposed to sepsis mimics) and culture-positive sepsis (among true sepsis) in critical care using blood test results, physiological measurements and other patient characteristics. LÄS MER

  3. 2. Hur organisatorisk identifikation och motivation predicerar arbetstillfredsställelse?

    Kandidat-uppsats, Lunds universitet/Institutionen för psykologi

    Författare :Elias Hellman Fäldt; Isabelle Larsson; [2024]
    Nyckelord :motivation; arbetstillfredsställelse; organisatorisk identifikation; job satisfaction; organizational identification; Social Sciences;

    Sammanfattning : The contemporary workplace undergoes constant transformations, driven in part by employees' innovation and curiosity. Work environments where employees feel motivated, an organization that employees identify with, and notably, a workplace where employees feel respected and heard are key factors behind an organization's success. LÄS MER

  4. 3. Robustness Analysis of Perfusion Parameter Calculations

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Alicia Palmér; [2024]
    Nyckelord :Perfusion; Medical image analysis; Dynamic Contrast Enhanced Magnetic Resonance Imaging; Tofts model; Functional imaging; Optimization; T1 map; Perfusion; Medicinsk bildanalys; Dynamisk kontrastförstärkt magnetisk resonanstomografibildtagning; Tofts-modell; Funktionell bildbehandling; Optimering; T1 karta;

    Sammanfattning : Cancer is one of the most common causes of death worldwide. When given optimal treatment, however, the risk of severe illness may greatly be reduced. Determining optimal treatment in turn requires evaluation of disease progression and response to potential, previous treatment. LÄS MER

  5. 4. The Impact of Language on Bilateral Trade

    C-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Författare :Wilma Geust; Hanna Szinai; [2024]
    Nyckelord :gravity; language; bilateral trade; trade models; internet;

    Sammanfattning : This paper investigates the impact of different language factors on international bilateral trade from 1996 to 2020 through gravity model analysis. Sharing a common language has been proven to facilitate trade between countries and is often included as an indicator variable in the gravity model of trade. LÄS MER

  7. 5. Vedlevande skalbaggar 10–20 år efter brand i tallskog : en jämförelse mellan hällmark och produktiv mark

    Kandidat-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :KajsaLisa Olsson; [2024]
    Nyckelord :Tallimpediment; biologisk mångfald; vedlevande skalbaggar; naturvårdsbränning; Pinus sylvestris;

    Sammanfattning : The Swedish boreal forests have changed drastically in the last century. Intensive forestry with clear-cuttings and fire-prevention, cause a lack in dead wood diversity and volume. The current research on forests mainly focuses on productive forests and there is a knowledge gap regarding the importance of low-productive forest for biodiversity. LÄS MER