Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

$199 Brings Google Knowledge Graph in Reach of Hackers and Startups

basekb.com

Post reply on HN
Print view View original

11–20 of 27 posts

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#11

Post by PaulHoule »

xSwag wrote: post #6

Hey, I would like to have some more information on exactly what type of data you have? >just about anything that would come up in a game of "20 I don't feel like that is clear enough.

It's a machine readable encyclopedia with very good coverage of concepts that are in people's shared conciousness.

If it were combined with a large document corpus (say CommonCrawl) you could use it to build (i) something like DMOZ that needs little human input, or (ii) a document analyzer that extracts named entities and topics, (iii) a knowledge base to support "enterprise search" where the major problem is recall because people don't use the right keywords, or (iv) many other intelligent apps which I haven't thought of yet.

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#12

Post by nix »

vibrunazo wrote: post #4

What exactly is the difference between using this and the freebase api? Are they just converting data formats?

The Freebase API is a hosted service. MQL is designed for fast HTTP queries that power interactive webapps.

SPARQL is harder to learn and set up, but allows for more complicated queries that might require offline processing.

(I designed the first version of MQL)

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#13

Post by j_baker »

PaulHoule wrote: post #10
tonfa wrote: post #9

Freebase 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…

I'm not at liberty to go into much detail here, but there are a number of things that are in the KG that aren't in freebase. The process giveth and the process taketh away.

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#15

Post by PaulHoule »

mark_l_watson wrote: post #14

I used to use the Freebase RDF endpoint - that is nothing new. That said, this looks very interesting and I expect businesses to grow by selling public data in easier to use forms.

The Freebase RDF endpoint had three problems:

(i) it would only let you look at one subject at a time, (ii) it would only return a maximum of 100 facts about a subject (iii) it didn't use names consistently so you couldn't match up properties and classes with the schema

It's all great for a hack day demo but not acceptable at all if you care about building systems that give the right answer.

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#16

Post by mark_l_watson »

mark_l_watson wrote: post #14

I used to use the Freebase RDF endpoint - that is nothing new. That said, this looks very interesting and I expect businesses to grow by selling public data in easier to use forms.

I just signed up to download the free sample data. Kicking the tires...

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#17

Post by chintan »

Great stuff! On the landing page, I would add some examples of what one can do with this KB.

e.g. a startup in local space can use BaseKB to find various attributes about a city and nearby towns etc. You can also price various subsets geared to such niches.

Most startups re-invent the wheel when it comes to such KB/data issues. Show them the math :- instead of spending 1/0.5 FTE time in aggregating/cleaning data, they might as well shell out $199pm and get the job done.

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#19

Post by rryan »

PaulHoule wrote: post #10
tonfa wrote: post #9

Freebase 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…

> Actually the 500M (or 400M or 300M) or whatever number is bogus.

Could you provide some sources here?

> 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 this were reality it would be a pretty big lie on Google's part. Why do you think this is the case?

EDIT: OK, now I realize why your comments trigger my BS alarm. It's in your interest to represent the Google knowledge-graph as being equivalent to Freebase/metaweb (a Google acquisition many years ago. Do you really think they did nothing to increase their graph since that acquisition?) because you are the founder of Ontology2 (the company providing this service). You really should mention that somewhere in this thread or on your profile (I realize your comments elsewhere in this thread allude to it -- for the claims you are making without sources that's not enough IMHO).

Re: $199 Brings Google Knowledge Graph in Reach of Hackers and Startups

#20

Post by PaulHoule »

parsa28 wrote: post #18

How is this data different from what you could obtain by utilizing OpenLink Virtuoso+Sponger (Freebase cartridge)+DBPedia live?

overall accuracy is better

DBpedia is produced by a rube goldberg machine that parses (undocumentable) wiki markup

if a fact is wrong in Dbpedia you need to do detective work to know if it's a problem with the mappings or with Wikipedia. If it's in Wikipedia maybe the editors will let you fix it on a good day.

Precision and recall for types like "Person" is much better in Freebase. Years ago I spent a week in a half cleaning up data from Dbpedia to do something I was able to do in 15 minutes with Freebase.

Post reply on HN