Bob DuCharme

I'll say that GraphDB is the best option out there, but I do work for Graphwise. (My personal blog shows that I was a big fan before I joined them.) You can register for a hosted sandbox version and also download and install it with a free license from https://graphwise.ai/components/graphdb/. See more at https://graphwise.ai/experience-area/.

For a Graph DB, I suggest GraphDB! (Full disclosure: I work for Graphwise, the company that makes it.) It's not open source but it's easy to get a free license. Please contact me if there are any questions I can answer.

You may find https://www.bobdc.com/blog/selling-rdf-technology-to-big/ interesting, in which I described thirteen years ago why I stopped using the phrase "semantic web". The hot thing at the time was "Big Data," so I was addressing that context, but the ideas still hold, and RDF-related technology continues to do more great things. (For most people, forgetting about OWL helps, so you may also find https://www.bobdc.com/blog/dontneedowl/ interesting.) All of the ideas in your piece make sense, but arguing against aughts-era notions of the value of RDF technology is kind of shooting fish in a barrel.

Graphwise (formerly Ontotext and Semantic Web Company; also my employer) is doing a lot in that area. You could start at https://www.ontotext.com/knowledgehub/fundamentals/what-is-graph-rag/. Here's a short video that I made about something we built on top of this: https://www.youtube.com/watch?v=dCndx2QJRIQ

You might also like this: https://www.ontotext.com/knowledgehub/fundamentals/what-is-graph-rag/ (Full disclosure: I work for Ontotext.)

Keith M. And as I mentioned, for the fancier features, the Test Drive looks like it demonstrates a lot of them.