Search for dissertations about: "Missing data"

Showing result 1 - 5 of 301 swedish dissertations containing the words Missing data.

  1. 1. Missing data identification

    University dissertation from Stockholm : Signaler, sensorer och system

    Author : Ragnar Wallin; [2000]
    Keywords : ;

    Abstract : .... READ MORE

  2. 2. Methodology for Handling Missing Data in Nonlinear Mixed Effects Modelling

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Åsa M. Johansson; Mats O. Karlsson; Andrew C. Hooker; Leon Aarons; [2014]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacometrics; population models; censored observations; missing covariates; missing dependent variable; missing data mechanism; missing completely at random MCAR ; missing at random MAR ; missing not at random MNAR ; estimation algorithms; Pharmaceutical Science; Farmaceutisk vetenskap;

    Abstract : To obtain a better understanding of the pharmacokinetic and/or pharmacodynamic characteristics of an investigated treatment, clinical data is often analysed with nonlinear mixed effects modelling. The developed models can be used to design future clinical trials or to guide individualised drug treatment. READ MORE

  3. 3. Uncertainty intervals and sensitivity analysis for missing data

    University dissertation from Umeå : Umeå Universitet

    Author : Minna Genbäck; Xavier de Luna; Elena Stanghellini; Arvid Sjölander; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; missing data; missing not at random; non-ignorable; set identification; uncertainty intervals; sensitivity analysis; self reported health; average causal effect; average causal effect on the treated; mixed-effects models; Statistics; statistik;

    Abstract : In this thesis we develop methods for dealing with missing data in a univariate response variable when estimating regression parameters. Missing outcome data is a problem in a number of applications, one of which is follow-up studies. READ MORE

  4. 4. Methods for Analysis of Naturalistic Driving Data in Driver Behavior Research

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Jonas Bärgman; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safety benefit evaluation; crash causation; safety measures; automated driving; analysis; naturalistic driving data; driver behavior; counterfactual simulations;

    Abstract : In the last several years, the focus of traffic safety research—especially when performed in association with the automotive industry—has shifted from preventing injury during a crash to avoiding the crash altogether or mitigating its effects. Pre-crash safety measures include intelligent safety systems (e.g. READ MORE

  5. 5. Predictive Techniques and Methods for Decision Support in Situations with Poor Data Quality

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Rikard König; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rule extraction; genetic programming; uncertainty estimation; machine learning; artificial neural networks; information fusion; Computer Science; data mining;

    Abstract : Today, decision support systems based on predictive modeling are becoming more common, since organizations often collect more data than decision makers can handle manually. Predictive models are used to find potentially valuable patterns in the data, or to predict the outcome of some event. READ MORE