Download e-book for kindle: Geospatial Semantic Web by Chuanrong Zhang, Tian Zhao, Weidong Li

By Chuanrong Zhang, Tian Zhao, Weidong Li

ISBN-10: 3319178008

ISBN-13: 9783319178004

ISBN-10: 3319178016

ISBN-13: 9783319178011

This publication covers key matters with regards to Geospatial Semantic internet, together with geospatial net companies for spatial facts interoperability; geospatial ontology for semantic interoperability; ontology production, sharing, and integration; querying wisdom and data from heterogeneous facts resource; interfaces for Geospatial Semantic net, VGI (Volunteered Geographic details) and Geospatial Semantic net; demanding situations of Geospatial Semantic net; and improvement of Geospatial Semantic net purposes. This ebook additionally describes state of the art applied sciences that try to clear up those difficulties equivalent to WFS, WMS, RDF, OWL and GeoSPARQL and demonstrates the best way to use the Geospatial Semantic net applied sciences to unravel sensible real-world difficulties comparable to spatial information interoperability.

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Extra info for Geospatial Semantic Web

Sample text

Once the operation is completed, a response message or an exception message may be sent to the server. The GetRecordById operation allows users to retrieve the default representation of catalogue records using their identifiers. This operation assumes that a previous query such as a GetRecords operation has been performed to obtain the identifiers that may be used with this operation. This operation is included as a convenient short form for retrieving and linking to records in a catalogue. GetDomain, Transaction, and Havest are three optional operations.

The following section introduces a set of geospatial feature discovery algorithms for automatic discovery of geospatial features based on the ontology-based WFS, recently proposed by us (Zhang et al. 2010a). Geospatial Feature Discovery Algorithms To find feature-level geospatial data, we consider a WFS feature as a basic unit of service rather than the entire WFS server. The reason is that a user should not be concerned with whether two features are located in different servers. Instead, a query processing module should handle the task of joint query transparently.

1 Semantic Problem of Spatial Data With Web Services and Service-Oriented Architecture, users can find, share, and reuse geospatial information more easily over the Web than before. g. Crompvoets et al. 2004; Masser 2005; Rajabifard et al. 2006). The SDIs based on the open standards and OGC web service technologies offer the potential to overcome the heterogeneous problems of legacy GIS databases and facilitate sharing geospatial data in a cost effective way (Askew et al. 2005; Peng and Zhang 2004a, b; Zhang et al.

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Geospatial Semantic Web by Chuanrong Zhang, Tian Zhao, Weidong Li

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