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This paper focuses on RDF and ontology and semantic-enable geo-spatial services discovery. The domain ontology DB of reservoir area application was firstly proposed; based on this domain ontology DB, semantic information are annotated to the profile of the services to be discovered; and OWL-based service description language OWL-S instead of WSD are used to provide service description. Based on Oracle...
In this paper, the semantic information of geographic features is researched. And, the semantic information of geographic features is used to help the search of geographic features. Semantic information of geographic features includes: spatial semantic information, geographic features category semantic information and the semantic information the users add. Chinese administrative ontology and the...
As the non-functional semantics of Web service, Quality of Service (QoS) takes an essential role in actual use of Web services. It is necessary to take the QoS into account in the discovery and composition of Web services. This paper presents an automatic service composition algorithm to generate the composite services which are called service trees, and then addresses the issue of composite service...
The ontology has an important role in the sharing and interoperability of geographic information and services. At present, the ontology merging usually needs people to participate in. To avoid this insufficient, this paper studies the model of ontology merging at first, and then gives an approach to merge ontology automatically. The core idea of the approach is, firstly, use the ontology similarity...
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