Sökning: "spatial distributions"
Visar resultat 1 - 5 av 205 avhandlingar innehållade orden spatial distributions.
1. Spatial Spread of Organisms : Modeling ecological and epidemiological processes
Sammanfattning : This thesis focuses on the spread of organisms in both ecological and epidemiological contexts. In most of the studies presented, displacement is modeled with a spatial kernel function, which is characterized by scale and shape. These are measured by the net squared displacement (or kernel variance) and kurtosis, respectively. LÄS MER
2. The Bronze Age metalwork in southern Sweden : aspects of social and spatial organization 1800-500 B.C
Sammanfattning : The present work highlights the Bronze Age metalwork in Southern Sweden, deposited c. 1800-500 B.C., found as single finds or in burials and hoards. LÄS MER
3. Spatial Mixture Models with Applications in Medical Imaging and Spatial Point Processes
Sammanfattning : Finite mixture models have proven to be a great tool for both modeling non-standard probability distributions and for classification problems (using the latent variable interpretation). In this thesis we are building spatial models by incorporating spatially dependent categorical latent random fields in a hierarchical manner similar to that of finite mixture models. LÄS MER
4. Entropy, information theory and spatial input-output analysis
Sammanfattning : Interindustry transactions recorded at a macro level are simply summations of commodity shipment decisions taken at a micro level. The resulting statistical problem is to obtain minimally biased estimates of commodity flow distributions at the disaggregated level, given various forms of aggregated information. LÄS MER
5. Studies on spatial and temporal distributions of epiphytic lichens
Sammanfattning : Lichens are an important group of organisms in terms of environmental issues, conservation biology and biodiversity, principally due to their sensitivity to changes in their environment. Therefore it is important that we develop our understanding of the factors that affect lichen distribution. LÄS MER