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Representation of Map Objects with Semi-structured Data Models

By Emmanuel Stefanakis


Mapping agencies world-wide produce a range of different types of maps, in efforts to meet different user requirements. These maps are usually designed in a digital environment and some of them are distributed through the World Wide Web. One important issue for those agents is the appropriate modelling and handling of map objects from which the digital maps are composed., This paper focuses on this aspect and as such addresses two aspects. First, the semi-structured nature of data composing a map is discussed. Second, the Object Exchange Model (OEM), a popular model for semi-structured data, is adopted to represent a map. Several configurations regarding the representation of a map in OEM are proposed. Finally, it is shown how useful information can be extracted from those configurations using Lorel query language for semi-structured data

Topics: semi-structured data, OEM, Lorel, XML
Year: 2009
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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