Titlebook: Geographic Information Science; Third International Max J. Egenhofer,Christian Freksa,Harvey J. Miller Conference proceedings 2004 Springe

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NEG

Semi-automatic Ontology Alignment for Geospatial Data Integration,global ontology that describe the domain, with the concepts of the ontologies that describe the data in the local databases. Once the alignment between the global ontology and each local ontology is established, users can potentially query hundreds of databases using a single query that hides the un

stress-response

AXIS

Procedure to Select the Best Dataset for a Task,quality of the dataset and descriptions of the task are used to make this decision. A simple comparison of task requirements and available data quality is supplemented with general, common-sense knowledge about effects of errors, lack of precision in the data and the dilution of quality over time. I

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