[Freebase-discuss] /base/*/topic

[Jeff Prucher]

Yes, every time a base is created, a /base/foo/topic type is created.
It is automatically made an included type of all types created in the
base (including CVTs), although it can be removed. It's sole purpose
is to assert that a topic is "in" a base. I've found it to be
primarily useful in creating saved views when I want a more complex
logic than the current table view creation logic permits, and
otherwise sort of in the way.

Jeff

On Thu, Dec 2, 2010 at 9:40 AM, Paul Houle <paul at ontology2.com> wrote:
>     Looking at a good-size sample of Freebase object and their associated
> types,  I find nearly 2000 of the form
>
> /base/*/topic
>
>    It seems like the purpose of this is to assert that "object A is in the
> scope of base B".  Is this a standard thing that you get when you create a
> base?  (I can't imagine it would be used so consistently if people were
> making them themselves)
>
>    Of course,  now that my vernacularization and junk type elimination (man
> I'm glad Juggle is gone) has gotten down to types with 1000 or so instances,
>  I can see that the bases are wild and wooly and I find plenty of oddballs
> like
>
> /base/kwebbase/kwtopic
>
>    Generally,  I'm finding that types from bases,  say
> /base/popstra/celebrity tend to be pretty noisy.
>
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