Sökning: "matrix completion"
Visar resultat 1 - 5 av 13 avhandlingar innehållade orden matrix completion.
1. Rank Reduction with Convex Constraints
Sammanfattning : This thesis addresses problems which require low-rank solutions under convex constraints. In particular, the focus lies on model reduction of positive systems, as well as finite dimensional optimization problems that are convex, apart from a low-rank constraint. LÄS MER
2. Regulation of Renal Hyaluronan in Water Handling : Studies in vivo and in vitro
Sammanfattning : Hyaluronan (HA) is a negatively charged extracellular matrix (ECM) component with water-attracting properties. It is the dominating ECM component in the renal medullary interstitium, where the amount changes in relation to hydration status: it increases during hydration and decreases during dehydration. LÄS MER
3. On some sparsity related problems and the randomized Kaczmarz algorithm
Sammanfattning : This thesis studies several problems related to recovery and estimation. Specifically, these problems are about sparsity and low-rankness, and the randomized Kaczmarz algorithm. This thesis includes four papers referred to as Paper A, Paper B, Paper C, and Paper D. LÄS MER
4. Empirical Essays in Public and Political Economics
Sammanfattning : Essay I: This paper proposes a novel approach to the issue of size, cost-efficiency and economies of scale by focusing on the break-up of municipalities. Municipal break-ups are an understudied phenomenon that nevertheless has been recurrent not only in parts of eastern Europe, but also in Spain and Sweden. LÄS MER
5. Studies on genetic hemochromatosis and the hepatotoxicity of iron
Sammanfattning : The aim of this study was to investigate the mutations and clinical expression of genetic hemochromatosis in patients and mechanisms involved in the hepatotoxicity of iron in animal and cell- culture models. In Swedish patients with a clinical diagnosis of genetic hemochromatosis, the C282Y mutation of the HFE gene was present in 94. LÄS MER