Search for dissertations about: "Outliers"

Showing result 1 - 5 of 91 swedish dissertations containing the word Outliers.

  2. 1. IMPROVED SAFETY AND QUALITY OF CARE FOR PATIENTS WITH A HIP FRACTURE Intervention Audited by the National Quality Register RIKSHÖFT

    Author : Ami Hommel; Institutionen för hälsovetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; reumatologi; Gerontology; muskelsystem; Skelett; rheumatology locomotion; Skeleton; muscle system; Pressure ulcers; Nutritional status; Complicationss; Outliers; Medicine human and vertebrates ; Medicin människa och djur ; Quality of care; Safety; Hip fracture; Gerontologi;

    Abstract : Aim: Hip fractures are common and costly. The overall aim of this thesis was to explore how different clinical pathways influence safety and quality of care among patients with a hip fracture and to test the usefulness of the national quality register RIKSHÖFT as a working tool. READ MORE

  4. 2. Model-based outlier adjustments for samples from skewed populations

    Author : Olivia Ståhl; Dan Hedlin; Daniel Thorburn; Carl-Erik Särndal; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Survey sampling; outliers; value modification; winsorization; statistik; Statistics;

    Abstract : Many populations encountered in practice are skewed to the right and contain a couple of values which are much larger than the bulk of the data. Using standard estimators to estimate for example the mean value of such a population is likely to result in a large variance. READ MORE

  5. 3. Robust Algorithms for Multiple View Geometry: Outliers and Optimality

    Author : Olof Enqvist; Matematik LTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is concerned with the geometrical parts of computer vision, or more precisely, with the three-dimensional geometry. The overall aim is to extract geometric information from a set of images. Most methods for estimating the geometry of multiple views rely on the existence of robust solvers for a set of basic problems. READ MORE

  6. 4. Issues of incompleteness, outliers and asymptotics in high dimensional data

    Author : Peter S. Karlsson; Thomas Holgersson; Ghazi Shukur; Åke E. Andersson; Jönköping University; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Business and economics; Ekonomi;

    Abstract : This thesis consists of four individual essays and an introduction chapter. The essays are in the field of multivariate statistical analysis of High dimensional data. The first essay presents the issue of estimating the inverse covariance matrix alone and when it is used within the Mahalanobis distance in High-dimensional data. READ MORE

  7. 5. Frequency Tracking for Speed Estimation

    Author : Martin Lindfors; Rickard Karlsson; Gustaf Hendeby; Fredrik Gustafsson; Tomas McKelvey; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Estimating the frequency of a periodic signal, or tracking the time-varying frequency of an almost periodic signal, is an important problem that is well studied in literature. This thesis focuses on two subproblems where contributions can be made to the existing theory: frequency tracking methods and measurements containing outliers. READ MORE