Search for dissertations about: "Spatial Data Infrastructure"

Showing result 1 - 5 of 64 swedish dissertations containing the words Spatial Data Infrastructure.

2. 1. Modeling and improving Spatial Data Infrastructure (SDI)

   Author : Ehsan Abdolmajidi; Institutionen för naturgeografi och ekosystemvetenskap; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spatial Data Infrastructure; System Dynamics; Fuzzy Logic; Data integration; Pattern detection; Resource Description Framework RDF ; Ontology;

   Abstract : Spatial Data Infrastructure (SDI) development is widely known to be a challenging process owing to its complex and dynamic nature. Although great effort has been made to conceptually explain the complexity and dynamics of SDIs, few studies thus far have actually modeled these complexities. READ MORE

4. 2. Data-driven models for railway track geometry maintenance

   Author : Hamid Khajehei; Alireza Ahmadi; John Andrews; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Data-driven models; degradation; maintenance; tamping; track geometry; planning and scheduling; railway infrastructure; Drift och underhållsteknik; Operation and Maintenance;

   Abstract : Railways are currently experiencing higher demands on safety, infrastructure performance, network capacity and service quality, etc. As a result, a high level of track availability, service quality and infrastructure robustness against unexpected events is required, at reduced cost, to meet the demands. READ MORE

5. 3. Methods to Improve and Evaluate Spatial Data Infrastructures

   Author : Ara Toomanian; Centrum för geografiska informationssystem (GIS-centrum); []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spatial data infrastructure; evaluation; balanced scorecard; geoportals; clearinghouse; web cartography; expert system; web services;

   Abstract : This thesis mainly focuses on methods for improving and evaluating Spatial Data Infrastructures (SDIs). The aim has been threefold: to develop a framework for the management and evaluation of an SDI, to improve the accessibility of spatial data in an SDI, and to improve the cartography in view services in an SDI. READ MORE

6. 4. Investigating Spatial Data Infrastructure Planning in Tanzania using System Modelling and Social Concepts

   Author : Alex Lubida; Institutionen för naturgeografi och ekosystemvetenskap; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spatial Data Infrastructure; System Dynamics technique; Agent Based Modeling; Community of Practice; Multi- Objective Optimization; Land use planning;

   Abstract : Spatial Data Infrastructure is one of the requirements for sustainable development and many countries worldwide are at different stages of implementation. Several researchers have shown that SDI has helped governments to recover funds due to reduction in duplication of efforts and also has increased efficiency in resource management and planning. READ MORE

7. 5. Geographical Information Technologies – Decision Support for Road Maintenance in Uganda

   Author : Lydia Mazzi Kayondo-Ndandiko; Blekinge Tekniska Högskola; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Data Model; Dynamic Segmentation; Geographical Information Technologies GITs ; Geographical Information Systems for Transportation GIS-T ; Linear referencing; Methodological Framework; Research and Development; Road maintenance; Road Infrastructure Maintenance RIM ; Science Technology and Innovation; Spatial Data Infrastructure; Uganda;

   Abstract : This study set out to develop a framework within which the use of Geographical Information Technologies (GITs) can be enhanced in Road Infrastructure Maintenance (RIM) in Uganda. Specifically it was guided by 3 objectives; 1. To assess the gaps in the use of GITs for RIM in Uganda and the limitations to accessing these technologies, 2. READ MORE