Can anyone direct me to the new URL for Hacker News? I missed the announcement where this site was converted to Hacker Ads.
$199 Brings Google Knowledge Graph in Reach of Hackers and Startups
21–27 of 27 posts
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#22Freebase isn't the same thing as Google Knowledge graph. Freebase contains 22M entities (according to the wikipedia entry), while the knowledge graph contains 500M entities (according to google announcement).
Actually the 500M (or 400M or 300M) or whatever number is bogus. We do know that they ported "graphd", the Freebase database, to Google's infrastructure. Really nothing happened at Freebase for a year and a half while they were doing this. They've probably created a very large Freebase graph for scale testing and it's likely that they're able to handle 500M entities from a hardware perspective. If you look at how oft…
The Knowledge Graph is growing quite quickly as we add more and more data sources. Freebase is one of those sources but there are obviously others that make up the full 500M entities.
The rate at which we add entities to the Knowledge Graph is different from the rate at which those entities appear in search. What you see in search now is just part of the Knowledge Graph but we're continuously increasing the coverage while making sure that the quality of the data remains extremely high. I guess that's what you would call the "visible GKG"; to us, its all one big graph.
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#23It should be noted that the RDF endpoint isn't the only way of getting data out of Freebase.
Freebase provides complete weekly data dumps (http://wiki.freebase.com/wiki/Data_dumps) and has instructions for post-processing them; presumably this is exactly what PaulHoule is doing. As chintan pointed out, it could still be a worthwhile service for you.
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#24Earlier quoted context omitted.
The difference between SPARQL 1.1 and MQL (the propreitary Freebase language) is like the difference between chess and checkers. In SPARQL you can write queries that involve any graph relationships that come into your head. You can take the UNION of multiple graph patterns. With SPARQL you can also get back 200,000 or more results. With MQL you quickly run into the wall when you find that you can't write the query yo…
How about the Freebase quad dump? Can't I just import that into virtuoso and do the same sparql queries?
You'll need to process that file into something that your DB can consume. If all you need are minor syntax tweaks, you can stream straight through.
More likely, you'll need to rebuild the dump to be more than quads ordered by arbitrarily assigned unique id, and with nearly 600 million quads, it's not completely trivial to do, might involve temporary index files, etc.
Still, it's doable.
(also see: http://code.google.com/p/freebase-quad-rdfize/ )
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#25Freebase isn't the same thing as Google Knowledge graph. Freebase contains 22M entities (according to the wikipedia entry), while the knowledge graph contains 500M entities (according to google announcement).
Actually the 500M (or 400M or 300M) or whatever number is bogus. We do know that they ported "graphd", the Freebase database, to Google's infrastructure. Really nothing happened at Freebase for a year and a half while they were doing this. They've probably created a very large Freebase graph for scale testing and it's likely that they're able to handle 500M entities from a hardware perspective. If you look at how oft…
Yes, but what you're providing is _not_ the Google Knowledge graph. You should not claim that you are.
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#26How is this data different from what you could obtain by utilizing OpenLink Virtuoso+Sponger (Freebase cartridge)+DBPedia live?
Where could I learn more about that stack ?
I knew about Virtuoso and DBPedia not about a Freebase cartridge.
Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups
#27Earlier quoted context omitted.
Actually the 500M (or 400M or 300M) or whatever number is bogus. We do know that they ported "graphd", the Freebase database, to Google's infrastructure. Really nothing happened at Freebase for a year and a half while they were doing this. They've probably created a very large Freebase graph for scale testing and it's likely that they're able to handle 500M entities from a hardware perspective. If you look at how oft…
Yes, but what you're providing is _not_ the Google Knowledge graph. You should not claim that you are.
It's not the same thing but it's the closest thing available.
I go around saying there's no ring to bind them all but that an arbitrarily good aproximation can be built.