Sökning: "Spatial kernel"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Spatial kernel.

  1. 1. Spatial Spread of Organisms : Modeling ecological and epidemiological processes

    Författare :Tom Lindström; Uno Wennergren; Colleen Webb; Linköpings universitet; []
    Nyckelord :Spatial kernel; Spatially explicit modeling; Disease transmission; Animal movements; NATURAL SCIENCES; NATURVETENSKAP;

    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

  3. 2. A kernel function approach to exact solutions of Calogero-Moser-Sutherland type models

    Författare :Farrokh Atai; Edwin Langmann; Hjalmar Rosengren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kernel functions; Calogero-Moser-Sutherland models; Ruijsenaarsvan Diejen models; Elliptic functions; Exact solutions; Source Identities; Chalykh- Feigin-Sergeev-Veselov type deformations; non-stationary Heun equation; Physics; Fysik;

    Sammanfattning : This Doctoral thesis gives an introduction to the concept of kernel functionsand their signicance in the theory of special functions. Of particularinterest is the use of kernel function methods for constructing exact solutionsof Schrodinger type equations, in one spatial dimension, with interactions governedby elliptic functions. LÄS MER

  4. 3. Probabilistic Mapping of Spatial Motion Patterns for Mobile Robots

    Författare :Tomasz Piotr Kucner; Martin Magnusson; Achim Lilienthal; Tomás Krajník; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : To bring robots closer to real-world autonomy, it is necessary to equip them with tools allowing them to perceive, model and behave adequately to dynamic changes in the environment. The idea of incorporating information about dynamics not only in the robots reactive behaviours but also in global planning process stems from the fact that dynamic changes are typically not completely random and follow spatiotemporal patterns. LÄS MER

  5. 4. Urban Growth Modeling Based on Land-use Changes and Road Network Expansion

    Författare :Yikang Rui; Yifang Ban; Henning Sten Hansen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; urban growth sprawl; land-use simulation; multi-agent system; road network pattern; space syntax; complex networks; evolving weighted networks; nonlinear growth; local world; hierarchy; self-organized; local optimization; morphological changes; street centrality; adaptive kernel density estimation; dual representation;

    Sammanfattning : A city is considered as a complex system. It consists of numerous interactivesub-systems and is affected by diverse factors including governmental landpolicies, population growth, transportation infrastructure, and market behavior. LÄS MER

  7. 5. Statistical gas distribution modelling for mobile robot applications

    Författare :Matteo Reggente; Achim Lilienthal; Krishna Persaud; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; statistical modelling; gas distribution mapping; mobile robots; gas sensors; kernel density estimation; Gaussian kernel; Datavetenskap; Computer Science;

    Sammanfattning : In this dissertation, we present and evaluate algorithms for statistical gas distribution modelling in mobile robot applications. We derive a representation of the gas distribution in natural environments using gas measurements collected with mobile robots. LÄS MER