Sökning: "complex scaling"

Visar resultat 1 - 5 av 119 avhandlingar innehållade orden complex scaling.

1. 1. Geospatial Knowledge Discovery using Volunteered Geographic Information : a Complex System Perspective

   Författare :Tao Jia; Bin Jiang; Yifang Ban; Itzhak Benenson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; knowledge discovery; urban systems; complex system; VGI; OSM; GPS tracking dataset; scaling; heavy-tailed distribution detection; urban sprawl; Zipf’s law; human activity mobility patterns; agent-based modeling; complex network.;

   Sammanfattning : The continuous progression of urbanization has resulted in an increasing number of people living in cities or towns. In parallel, advancements in technologies, such as the Internet, telecommunications, and transportation, have allowed for better connectivity among people. LÄS MER

3. 2. Topological and Scaling Analysis of Geospatial Big Data

   Författare :Ding Ma; Bin Jiang; Shaowen Wang; Högskolan i Gävle; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Third definition of fractal; scaling; topology; power law; head tail breaks; ht-index; complex network; geospatial big data; natural cities; natural streets; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : Geographic information science and systems face challenges related to understanding the instinctive heterogeneity of geographic space, since conventional geospatial analysis is mainly founded on Euclidean geometry and Gaussian statistics. This thesis adopts a new paradigm, based on fractal geometry and Paretian statistics for geospatial analysis. LÄS MER

4. 3. Scaling Indoor Positioning : improving accuracy and privacy of indoor positioning

   Författare :Jimmy Engström; Jan A. Persson; Åse Jevinger; Carl Magnus Olsson; Gustaf Hendeby; Malmö universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Our phones have many uses for positioning technologies, such as navigation, LocationBased Services (LBS), emergency positioning, fitness applications, and advertising. We trust our phones and wearables to be location-aware. LÄS MER

5. 4. Characteristic properties of two-dimensional superconductors close to the phase transition in zero magnetic field

   Författare :Kateryna Medvedyeva; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; superconductor; two dimensions; phase transition; vortex; currentvoltage characteristics; complex conductivity; scaling; critical exponents; XY-type models; dynamics; Physics; Fysik; fysik; Physics;

   Sammanfattning : The main focus of this thesis lies on the critical properties of twodimensional (2D) superconductors in zero magnetic field. Simulations based on variants of the 2D XY model are shown to give characteristic features close to the phase transition which agree qualitatively with experimental data. LÄS MER

7. 5. Numerical studies of resonances using complex scaling

   Författare :Christina Carlsund-Levin; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER