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Full-Text Articles in Social and Behavioral Sciences
Ontology-Driven Geographic Information Systems, Frederico Torres Fonseca
Ontology-Driven Geographic Information Systems, Frederico Torres Fonseca
Electronic Theses and Dissertations
Information integration is the combination of different types of information in a framework so that it can be queried, retrieved, and manipulated. Integration of geographic data has gained in importance because of the new possibilities arising from the interconnected world and the increasing availability of geographic information. Many times the need for information is so pressing that it does not matter if some details are lost, as long as integration is achieved. To integrate information across computerized information systems it is necessary first to have explicit formalizations of the mental concepts that people have about the real world. Furthermore, these …
Strategies For Handling Spatial Uncertainty Due To Discretization, Thomas Windholz
Strategies For Handling Spatial Uncertainty Due To Discretization, Thomas Windholz
Electronic Theses and Dissertations
Geographic information systems (GISs) allow users to analyze geographic phenomena within areas of interest that lead to an understanding of their relationships and thus provide a helpful tool in decision-making. Neglecting the inherent uncertainties in spatial representations may result in undesired misinterpretations. There are several sources of uncertainty contributing to the quality of spatial data within a GIS: imperfections (e.g., inaccuracy and imprecision) and effects of discretization. An example for discretization in the thematic domain is the chosen number of classes to represent a spatial phenomenon (e.g., air temperature). In order to improve the utility of a GIS an inclusion …