Abstract

With the development of Digital Yellow project, Yellow River Conservancy Commission accumulates a lot of information resource. There exists heterogeneous phenomenon in data. It is hard to integration and share. In order To solve this problem, the information resource sharing system is put forward to construct. The system provides a good technical solution to share and integrate information resources. The framework of semantic metadata based on ontology and formal descriptions of semantic information are introduced to the database system with heterogeneity, thus they are in favor of the users querying intelligence and improve the relevance of the query results. This paper carries through useful experiment from the point of theory and practice. Index Terms - Yellow River, information sharing, ontology, semantics discover and query

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