Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Spatial Data Infrastructure"”.
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A new trajectory for spatial data infrastructure evolution in the developing world
Spatial Data is a key resource in the development of cities. There is a lot of socio-economic potential that is locked away in spatial data holdings and this potential is unlocked by making the datasets widely available for use. Spatial Data Infrastructures (SDIs) have served this primary purpose; …
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Constraints oriented approaches in advancing spatial data infrastructure: case of Southern African Customs Union
Spatial data infrastructure (SDI) concept has made in-roads in a number of economies across the world, but Africa, on average is reported as lagging behind in implementation. This status has been confirmed through a number of continental SDI Assessments done in Africa. Africa SDI Assessments …
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An exposition of the nature of volunteered geographical information and its suitability for integration into spatial data infrastructures
… (VGI) and on its applicability for use in a spatial data infrastructure (SDI) to supplement official and commercial sources, particularly given the ease with which ordinary people can document their environment, experiences, perspectives and prejudices, share them widely and rapidly, and even …
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Investigating methodologies for evaluating the effectiveness of Integrated Spatial Information System (ISIS) implementation in the valuation department of the City of Cape Town
The increasing need to develop fully integrated spatial information systems that help improve planning and decision making have led the countries to create partnerships as to facilitate the improved sharing of spatial data and to realise the full potential of spatial data infrastructure. In this …
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Geographic information system as a map and survey database for a selected area
… how the distribution and availability of spatial data could be improved. This should then minimize the duplication of data and ensure a better utilization of available data sources. All decisions that are made should be based on information, and especially decisions about our natural …
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Visual topology in SDI: a data structure for modelling landscape perception
Visual Topology is a used here to describe the spatial relations between objects as they appear in the 2D viewing plane. This thesis sets out the concept, explains why it is needed in Geographic Information Science and suggests how it may be computed through development of prototype …
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Participants' motivations to contribute geographic information in an online community
… production and propose a hybrid model for spatial data infrastructure. I find this topic interesting particularly because it defies the traditional mode and offers a new mode of production and use of geographic information. The dissertation uses a combination of qualitative and quantitative …
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El uso de los metadatos para el desarrollo de un modelo de interoperabilidad para las Infraestructuras de Datos = The use of metadata for the development of a model of interoperability for Spatial Data Infrastructures
… interoperability model is proposed based on the Spatial Data Infrastructure (SDI) metadata, as well as a method for automatic metadata creation and a methodology allowing analysis of the interoperability provided by them. Metadata constitute an essential piece for SDI‘s; they catalogue geographic …
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Enhancement of digital elevation models using tree-based ensemble machine learning algorithms
Geospatial practitioners and national mapping agencies (NMAs) in Africa are constrained to rely on open-access remote sensing datasets, even as they struggle to meet up with best practices on spatial data infrastructure and topographic map revision. Thus, global digital elevation models (DEMs) have …
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Integração de dados espaciais heterogêneos no domínio hidrológico utilizando infraestrutura de dados espaciais
Nos últimos anos, houve uma expansão muito grande nas tecnologias computacionais. A Internet tornou-se um importante componente para a transferência de informações entre organizações e permitiu um leque enorme de oportunidades de aplicações. Um grupo de sistemas que necessita de uma troca grande de …
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Development of a methodology for spatial composite indicators: a case study on landscape.
… proposes a methodology for the construction of spatial composite indicators (SCI). The study starts from the premise that Composite Indicators (CIs) are regarded as very reliable tools to support decision processes. They are usually developed to describe complex phenomena of the reality in …