Stefan Werder

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In recent times the amount of spatial data being collected by voluntary users, e.g. as part of the OpenStreetMap project, is rapidly increasing. Due to the fact, that everyone can participate in this social collaboration, the completeness and accuracy of the data is very heterogeneous. Although a object catalogue exists as part of the OSM project, users are(More)
Constraints are inherent in most spatial datasets. However, they are often not defined explicitly and therefore cannot be enforced. This leads to the need for an explicit formalization of spatial constraints. In order to identify the diverse formalization requirements, previous research on constraint classification and usage in both data integration and(More)
Im Katastrophenmanagementistes notwendig,I nformationen aus Freitextmeldungen zeitnahineineL agekartezu übertragen. Die angestrebteAuto-matisierung desP rozesses basiertaufverschiedenen Ergebnissen wehrtechnischer Forschung.A usgehendvon einemb estehenden Datenmodell wurde die Wissens-basis, entsprechendd er domänenspezifischen Anforderungend es(More)
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