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Visar resultat 1 - 5 av 91 avhandlingar som matchar ovanstående sökkriterier.
1. IMPROVED SAFETY AND QUALITY OF CARE FOR PATIENTS WITH A HIP FRACTURE Intervention Audited by the National Quality Register RIKSHÖFT
Sammanfattning : 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. LÄS MER
2. Model-based outlier adjustments for samples from skewed populations
Sammanfattning : 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. LÄS MER
3. Robust Algorithms for Multiple View Geometry: Outliers and Optimality
Sammanfattning : 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. LÄS MER
4. Issues of incompleteness, outliers and asymptotics in high dimensional data
Sammanfattning : 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. LÄS MER
5. Frequency Tracking for Speed Estimation
Sammanfattning : 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. LÄS MER