Sökning: "Geographic Information System"

Visar resultat 6 - 10 av 71 avhandlingar innehållade orden Geographic Information System.

1. 6. Modern GIR Systems : Framework, Retrieval Model and Indexing Techniques

   Författare :Xing Lin; Yifang Ban; Harrie Lars; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Information Retrieval; GIR; Framework; Indexing; Retrieval Model; Other information technology; Övrig informationsteknik;

   Sammanfattning : Geographic information is one of the most important and the most common types of information in human society. It is estimated that more than 70% of all information in the world has some kind of geographic features. LÄS MER

3. 7. Modelling Epidemic Influenza : A Novel Approach

   Författare :Wah-Sui Almberg; Magnus Boman; Mats Danielsson; Paavo Pylkkänen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and Systems Sciences; data- och systemvetenskap;

   Sammanfattning : Modellering av dynamiska förlopp i socio-biologiska komplexa system är långt ifrån trivialt. Behovet av fördjupad förståelse av sådana förlopp är många gånger stort. Vi har presenterat ett oortodoxt förslag på hur spridning av influensa i mänsklig population kan beskrivas och simuleras. LÄS MER

4. 8. Making space for resilient urban well-being

   Författare :Karl Samuelsson; Stephan Barthel; S. Anders Brandt; Dagmar Haase; Högskolan i Gävle; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; subjective well-being; affordances; social-ecological urbanism; urban resilience; geographic information system; depression; densification; complex adaptive system; spatial planning; green-blue infrastructure; subjektivt välbefinnande; affordance; social-ekologisk stadsbyggnad; urban resiliens; geografiska informationssystem; depression; förtätning; komplexa adaptiva system; grön infrastruktur; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : This thesis addresses the need for urban landscapes that provide resilient contributions to inhabitants’ well-being while also limiting impacts on the Earth system. It aims to (1) advance a nuanced understanding of how urban environments relate to urban dwellers’ well-being, and (2) formulate guidelines for planning that supports urban dwellers’ well-being and align with global sustainability. LÄS MER

5. 9. Modeling Width in Spatial Optimization in Raster Space

   Författare :Lindsi Seegmiller; Takeshi Shirabe; Lars Harrie; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; raster-based geographic information system; spatial optimization; region selection; width; optimal routing; raster data modeling; distortion; corridor; rasterbaserat geografiskt informationssystem; rumslig optimering; regionval; bredd; optimal routing; rasterdatamodellering; distorsion; korridor; Geoinformatik; Geoinformatics;

   Sammanfattning : Given a grid of cells, each of which is assigned a numerical value quantifying its utility (or cost) for a certain use, a popular type of problem in geographic information science is raster-based spatial optimization. Such problems commonly seek to find a set of cells that maximizes (or minimizes) that utility (or cost) while adhering to a given set of constraints. LÄS MER

7. 10. From Art Galleries to Terrain Modelling --- A Meandering Path through Computational Geometry

   Författare :Mikael Hammar; Data Vetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; system; numerisk analys; Datalogi; systems; control; numerical analysis; Approximation Algorithms; Computational Geometry; Online Algorithms; Art Gallery Problem; Linear Search; Traveling Salesman Problem; R-Tree; Delaunay Triangulation; Polygon Exploration; Computer science; Shortest Watchman Routes; kontroll; Mathematics; Matematik;

   Sammanfattning : We give approximation and online algorithms as well as data structures for some well studied problems in computational geometry. The thesis is divided into three parts. In part one, we study problems related to guarding, exploring and searching geometric environments. LÄS MER