Intention of saving DBPedia in GraphDB
DBPedia already is saved in a machine readable format (RDF). We’ve started a proof-of-concept to show that GraphDB is able to solve these requirements too and to find out differences, advantages and disadvantages of the different concepts.
In RDF, the data model stands next to the data. Within sones GraphDB there is close connection between each object (node) and it’s (Vertex) type. For example the node “Homer Simpson” knows that he’s a “FictionalCharacter”.
Our expectation was, that GraphDB requires less hard-disk space and also offers a better data store, since all information about an object is saved in a unique node instead of several triple-data-files. Besides, any relationship between two objects (e.g. a person and its birth-place) is saved directly on that object. While loading a node, all information is available from a single location.
During project runtime we’ve discovered several problems that can be solved with that idea. The arising data network enables customers to find out complex relationships between any node using graph-algorithms. Disambiguation of words is possible, using the schema information (e.g. Tuareg can be either nomads living in the Sahara or a vehicle built by a German car vendor).
