With the increase of geospatial data and services, how to more efficiently utilize and share the geographic information
becomes a crucial problem. To effectively integrate and enhance abundant geographic information anywhere, this paper
presents a Registry Centre for Geospatial Web Service (RCGWS) based on the Open Geospatial Consortium (OGC)
Catalogue Service for Web and the ebXML Registry Information Model (ebRIM), which provides registration and
discovery portals for geospatial metadata for dataset and services. The design ideology and architecture of RCGWS are
introduced, and the techniques of appending GIS services classification in extended ebRIM and external interfaces of
RCGWS based on OGC CWS are discussed. The implementation of RCGWS platform shows that this Registry Centre
can satisfy the requirement of geospatial dataset and services.
KEYWORDS: Geographic information systems, Network architectures, Data modeling, Complex systems, Web services, Internet, Classification systems, Image processing, Internet technology, Information fusion
With the rapid development and application of Internet technology, Geographic Information System has stepped into a
new age with its main form as Geographic Information Services. Although there are so many Geographic Information
Services available on the Internet now, they are still in very low rate of application. To facilitate the discovery, some
proposals for Geographic Information Services infrastructures focus on centralized service registry (UDDI, Universal
Description, Discovery and Integration ) for cataloguing their geospatial functions and characteristics. Centralized
systems introduce single points of failure, hotspots in the network and expose vulnerability to malicious attacks. In order
to solve the problem above, this paper proposes A Complex Network Peer-to-Peer Approach for Geospatial Web
Services Discovery. Based on complex network theory, a Peer-to-Peer network has been established, and it takes the
charge of each peer's communication and management, and an EBRIM registry centre has been inserted into each peer
for the registry and query of Geographic Information Services.
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