Sökning: "Procrustes"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet Procrustes.

  1. 1. Algorithms for the Weighted Orthogonal Procrustes Problem and other Least Squares Problems

    Författare :Thomas Viklands; Per-Åke Wedin; Lars Eldén; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Procrustes; weighted; orthogonal; algorithms; global optimization.; Numerical analysis; Numerisk analys;

    Sammanfattning : In this thesis, we present algorithms for local and global minimization of some Procrustes type problems. Typically, these problems are about rotating and scaling a known set of data to fit another set with applications related to determination of rigid body movements, factor analysis and multidimensional scaling. LÄS MER

  3. 2. Development and Applications of Chemometric Methods for Spectral Deconvolution

    Författare :Robert Sjöback; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Chemometric methods are very useful in analyzing complex mixtures. In this thesis two methods are presented that allow resolution of overlapping spectra from mixtures without knowledge of the pure component spectra. It also includes applications of these methods, in which the spectroscopic properties of the fluorescein system are characterized. LÄS MER

  4. 3. Towards Reliable, Stable and Fast Learning for Smart Home Activity Recognition

    Författare :Rebeen Ali Hamad; Thorsteinn Rögnvaldsson; Mohamed-Rafik Bouguelia; Eric Järpe; Jens Lundström; Katrin Jonsson; Högskolan i Halmstad; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The current population age grows increasingly in industrialized societies and calls for more intelligent tools to monitor human activities.  The aims of these intelligent tools are often to support senior people in their homes, to keep track of their daily activities, and to early detect potential health problems to facilitate a long and independent life. LÄS MER

  5. 4. Towards Fully Automatic Optimal Shape Modeling

    Författare :Johan Karlsson; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Parameterization Invariance; Benchmarking; Interpretation; Segmentation; Alignment; Shape Modeling; MDL;

    Sammanfattning : Shape models and the automatic building of such models have proven over the last decades to be powerful tools in image segmentation and analysis. This thesis makes contributions to this field. The segmentation algorithm typically uses an objective function summing up contributions from each sample point. LÄS MER

  7. 5. 100 million years of shark macroevolution : A morphometric dive into tooth shape diversity

    Författare :Mohamad Bazzi; Per Ahlberg; Matt Friedman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sharks; Macroevolution; Extinction recovery dynamics; Geometric Morphometrics; Morphospace-Disparity Framework; Teeth; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi;

    Sammanfattning : Few vertebrate clades exhibit the evolutionary longevity and versatility of sharks, which constitute nearly half of all current chondrichthyan biodiversity and represent an ecological diversity of mid-to-apex trophic-level predators in both marine and freshwater environments. The rich fossil record of shark teeth from Mesozoic and Cenozoic rocks also makes the group amenable to large-scale quantitative analyses. LÄS MER