Sökning: "Cox model"

Visar resultat 1 - 5 av 106 uppsatser innehållade orden Cox model.

  1. 1. Biological Age and Risk of Developing Alzheimer's Disease and Related Dementias

    Master-uppsats, KTH/Proteinvetenskap

    Författare :Karolina Gustavsson; [2024]
    Nyckelord :Biological age BA ; PhenoAge; Klemera Doubal Method KDM ; Homeostatic Dysregulation HD ; Alzheimer’s disease and related dementias ADRD ; Biologisk ålder; PhenoAge; Klemera Doubal-metod; Homeostatic Dysregulation HD ; Alzheimers sjukdom och relaterade demenssjukdomar ADRD ;

    Sammanfattning : Biologisk ålder (BA) har nyligen fått ökad uppmärksamhet att fördjupa förståelsen kring åldersrelaterade sjukdomar och dess behandlingar, eftersom åldersrelaterade förändringar utgör en grundläggande gemensam nämnare för dessa tillstånd. Medan kronologisk ålder (CA) mäts i år, kan biologisk ålder (BA) mätas på många olika sätt. LÄS MER

  3. 2. Failure Probability and Lifetime Estimation for Industrial Robots : A Logistic Regression and Lifetime Analysis Approach

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Erik Fahlbeck Carlsson; Martin Herbert; [2023]
    Nyckelord :Lifetime Analysis; Logistic regression; Prediction; Lifetime estimation; Industrial robots; Livslängdsanalys; Logistisk regression; Prediktion; Livslängdsestimering; Industriella robotar;

    Sammanfattning : The ability to handle and process data for information extraction is getting more and more important. Using extracted data from the business to improve productivity is seen as an important part in developing the business processes. In this thesis, industrial robots and their survival times are analyzed. LÄS MER

  4. 3. Wind Turbine Recovery Forecasting using Survival Analysis

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Anton Palets; [2023]
    Nyckelord :Survival analysis; Recovery Forecast; Wind Turbine; Availability Forecast; AFT model; Aalen s model; Cox regression; Cox Proportional Hazards; Variation Processes; Mathematics and Statistics;

    Sammanfattning : The goal of this thesis is to present a methodology for predicting time until recovery of failed wind turbines. The necessity is motivated by the potential for more accurate wind energy export forecasts. The current approach rests entirely on having an expert examine the turbine and produce a time estimate. LÄS MER

  5. 4. Development of a Machine Learning Survival Analysis Pipeline with Explainable AI for Analyzing the Complexity of ED Crowding : Using Real World Data collected from a Swedish Emergency Department

    Master-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Tobias Haraldsson; [2023]
    Nyckelord :SHAP; Explainable AI; Survival Analysis; LOS; Machine Learning; ED Crowding; SHAP; Förklarbar AI; Överlevnadsanalys; LOS; Maskininlärning; Överbelastning på Akuten;

    Sammanfattning : One of the biggest challenges in healthcare is Emergency Department (ED)crowding which creates high constraints on the whole healthcare system aswell as the resources within and can be the cause of many adverse events.Is is a well known problem were a lot of research has been done and a lotof solutions has been proposed, yet the problem still stands unsolved. LÄS MER

  7. 5. Statistical Modelling of Price Difference Durations Between Limit Order Books: Applications in Smart Order Routing

    Master-uppsats, KTH/Matematisk statistik

    Författare :Hannes Backe; David Rydberg; [2023]
    Nyckelord :Smart Order Routing; Market Microstructure; Statistical Modelling; Survival Analysis; Kaplan-Meier; Cox Proportional Hazards; Random Survival Forest; Smart Order Routing; Marknadsmikrostruktur; Statistisk Modellering; Överlevnadsanalys; Kaplan-Meier; Cox Proportional Hazards; Random Survival Forest;

    Sammanfattning : The modern electronic financial market is composed of a large amount of actors. With the surge in algorithmic trading some of these actors collectively behave in increasingly complex ways. Historically, academic research related to financial markets has been focused on areas such as asset pricing, portfolio management and financial econometrics. LÄS MER