[gibsonf1]

The discussion of graph dbs completely misses the semantic rdf graph approach and how that differs greatly from the property graph (which is discussed). So important is not having to have a custom schema for each application that does not communicate with any other app as opposed to using standard ontologies with relationships and classes that are known and allow interoperability between systems (Linked Data Platform - Solid)

[planck01]

Do you know of any successfully semantic RDF graph databases, I guess with OWL support? Because I personally don't. If not, it probably is rightfully too much an academic niche to be discussed in the article.

[kthejoker2]

Stardog, MarkLogic, Virtuoso, AllegroGraph, and RDF4J all have commercial applications, but yeah in general semantic RDF is dying on the vine.

[gibsonf1]

We are using Blazegraph and Neptune in production as well as Allegrograph. With Neptune, we tested scale by putting the entire dbpedia on one 4 core machine with 16G of ram. It handled 2.7 billion statements without any issues (we ran out of time with the test - sure it can handle more)

[hmottestad]

Stardog is quite successful.

[dehrmann]

Does Top Quadrant have anything that does this?