Distributed Graph Databases and the Emerging Web of Data
Marko A. Rodriguez on distributed graph databases.
I follow his presentation up to the point where he says: Directed multi-relational graph: heterogeneous set of links. (page 6 of 79) and then The multi-relational graph is a very natural representation of the world. (page 22 of 79).
I fully agree that a multi-relational graph is a good start, but what about heterogeneous ways to identify the subjects represented by nodes and links (edges)?
I suppose that goes hand in hand with using URIs as the single identifiers for the subjects represented by nodes and edges.
Presuming one identifier is one way to resolve heterogeneous identification but not a very satisfactory one, at least to me.