Semantic description and link construction of smart tourism linked data based on big data

In big data environment, the key of smart tourism information system is the method of semantic description and link construction to complete intensive, intelligent and unified management of tourism. We proposed a hierarchical semantic description framework of tourism Linked Data, which consists of 4 layers: Metadata Layer, Ontology Layer, Linked Data Layer, Data application Layer. Main roles of these layers and their relations are described. A RDF Link approach between tourism Linked Data is presented to build the semantic association of tourism Linked Data.