Linking Graph Databases and Semantic Web for Reasoning in Library Domains

The need for digital libraries to store, catalogue, and manipulate documents is growing and the requirements are increasing daily. Much research is underway to discover effective ways to store and keep track of documents, their properties and uses. In this context, we propose the use of Labeled Property Graphs (LPGs) to store digital archives. The use of these graphs allows us high efficiency since the graphs are navigable very quickly thanks to Database Management Systems (DBMSs) (such as Neo4j) especially developed to guarantee high performance. On the other hand, this technology is not natively suited to infer new knowledge automatically. In this paper, we propose a method to use Semantic Web tools to enrich our knowledge base. This way, new operations are available, not possible with only graph databases. The proposed approach has been integrated into the GraphBRAIN (GB) system, a tool able to manage ontologies.