Sökning: "stepwise selection"

Visar resultat 1 - 5 av 25 uppsatser innehållade orden stepwise selection.

  1. 1. Evaluating a LSTM model for bankruptcy prediction with feature selection

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Emma Carlsson; [2023]
    Nyckelord :Feature selection; Bankruptcy prediction; Neural networks; LSTM; Chi-squared; t-test; Stepwise regression; Lasso regression; Random forest;

    Sammanfattning : Bankruptcy prediction is an important research topic. The cost of incorrect decision making in companies and financial institutions can be great and could affect large parts of society. But while it is indeed a major research area, there are few studies which consider the effects of feature selection. LÄS MER

  3. 2. Forecasting Football Corner Odds: Statistical Modelling, Betting Strategies and Assessing Market Efficiency

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Gustav Pålsson; Marcus Laurens; [2023]
    Nyckelord :Mathematics and Statistics;

    Sammanfattning : Statistical modelling could be included in a betting strategy where the value of a bet is assessed by comparing model predictions and market odds. This thesis presents several models based on statistical learning methods for predicting the total number of corners in a football match. LÄS MER

  4. 3. Investigating maintenance costs using response feature analysis

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

    Författare :Linus Hansson; [2022]
    Nyckelord :Response feature analysis; longitudinal data; maintenance costs; Response feature analysis; longitudinell data; underhållskostnader;

    Sammanfattning : Svenska Kraftnät (Svk) is responsible for ensuring that Sweden has a safe, sustainable, and cost-effective transmission system for electricity. In an effort to reduce costs, Svk has participated in a study where it has been determined that there are mostly costs for common facilities that stand out cost-wise. LÄS MER

  5. 4. Evaluating Risk Factors with Regression : A Review and Simulation Study of Current Practices

    Master-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Ragna Reinhammar; [2022]
    Nyckelord :;

    Sammanfattning : The term ”risk factor” is used synonymously with both predictor and causal factor, and causal aims of explanatory analyses are rarely stated explicitly. Consequently, the concepts of explaining and predicting are conflated in risk factor research. LÄS MER

  7. 5. Automatic Development of Pharmacokinetic Structural Models

    Master-uppsats, Uppsala universitet/Institutionen för farmaci

    Författare :Alzahra Hamdan; [2022]
    Nyckelord :pharmacometrics; non-linear mixed effects; modelling; pharmacokinetics; NONMEM; automation; exhaustive algorithm; stepwise algorithm; structural models; inter-individual variability; residual error models; model selection;

    Sammanfattning : Introduction: The current development strategy of population pharmacokinetic models is a complex and iterative process that is manually performed by modellers. Such a strategy is time-demanding, subjective, and dependent on the modellers’ experience. LÄS MER