Ontology Method Research And Application Of Key Technologies

Ontology is a core part of the Semantic Web,making the Web more easily understoodby the computer. Today,however,most of the data are stored in relational databases. there isno release in the form of ontology language, and the data are scattered, so how useexisting data stored in relational databases under the background of the semantic web is avery important research directions. Ontology building and ontology mapping is one of thekey technologies.In this paper,based on reading a lot of reading references and mastering research trends,complete scientific effects conversion from a relational database to the ontology,andpropose ontology mapping rules and methods.Thesis work is as follows:1. Completion of the construction of scientific effect ontology: analysis of the currentscientific effect library in CAI structure, profound analysis based on relational databaseontology construction method, and propose a method appropriate for the data source. Themethod is summarized: relational schema extraction,information analysis, mapping rules,build ontology, semantic annotation,ontology inspection and modification.2. Research science heterogeneous ontology mapping method: For multipleheterogeneous ontology library after scientific effect conversion, presented at the ontologymapping method using the minimum risk model method computing concept similarity anddecision tree algorithm to solve the problem of heterogeneous, achieving multipleheterogeneous integration.3.Scientific knowledge platform design and building: These two parts of the ontology ofscientific knowledge are key technologies, presents methods suitable for the data source. Toontology building and ontology mapping based, The platform section is designed toprovide a service oriented architecture. Services provided include entity search,visualization display, dynamic editing, browsing and other functions.