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Re: Freebase - improving the mapping of freebase rdf to other vocabularies

From: Tom Heath <tom.heath@talis.com>
Date: Tue, 7 Apr 2009 11:49:07 +0100
Message-ID: <89f622f10904070349j50f35732y16f04ebafe6a84ca@mail.gmail.com>
To: Jamie Taylor <jamie@metaweb.com>
Cc: "Daniel O'Connor" <daniel.oconnor@gmail.com>, public-lod@w3.org
Hi Jamie,

This is really interesting, and ideal material for a VoCamp :) Looking
forward to seeing you in Ibiza and discussing this in more detail.

If anyone else likes the sound of hacking vocabularies and related
tools next to the Mediterranean, just before the Future of Web Search
workshop and en route to WWW2009 in Madrid, there is still room for a
few more VoCampers:



2009/4/7 Jamie Taylor <jamie@metaweb.com>:
> Daniel -
> Creating a customized API to Freebase is an excellent use of Acre.
> Both Shawn Simister (http://www.freebase.com/view/user/narphorium) and I
> have been playing with general approaches for expressing Freebase data in
> other vocabularies.
> The schema driving my current approach is:
> http://vocabulary.freebase.com/type/schema/base/vocabulary/ontology
> This schema works in concert with the SameAs Mapping Schema which drives the
> generation of owl:sameAs statements on the new RDF interface:
> http://sameas.freebase.com/type/schema/base/sameas/consuming_api
> (see for example http://rdftest.mqlx.com/ns/en.u2)
> The vocabulary mapping schema allows you to say things like the Freebase
> property /type/object/name is the same as rdfs:label. It also has
> provisions for saying things like /people/person/gender maps to foaf:gender
> when emitted as a literal.
> I am currently grappling with how to declare data transformations - so for
> example you can say
> http://rdf.freebase.com/ns/people.person.date_of_birth(yyyy-mm-dd) is the
> same as foaf:birthday (mm-dd).
> Of course, what I find most interesting is that the object which maps a
> vocabulary to Freebase can also be used to map the vocabulary to another
> vocabulary, making the vocabulary maps very general.
> I will be attending VoCamp in Ibiza next week
> (http://vocamp.org/wiki/VoCampIbiza2009) and would be excited to collaborate
> with people on the effort (and build tools that can make use of it.)
> Jamie
> Jamie Taylor, Ph.D.
> Minister of Information
> Metaweb Technologies, Inc.
> Author "Programming the Semantic Web"
> www.freebase.com/view/en/jamie_taylor
> On Apr 4, 2009, at 11:56 AM, Daniel O'Connor wrote:
>> I just made:
>> http://foaf-rdf.freebaseapps.com/?id=/guid/9202a8c04000641f8000000007629191
>> Its a really trivial application to say that I'm a foaf:Person and point
>> to the main RDF from freebase.
>> The source is just a mix of javascript, rdf, and a few extra tags - really
>> easy stuff.
>> http://acre.freebase.com/#app=/user/doconnor/foaf&file=index
>> Without going overboard:
>>     What other common vocabularies would related to freebase types
>> well; and be of value to publish?
>>     What more complicated queries would be neat to have as RDF?
>> (rather than 'show a single object')
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Dr Tom Heath
Platform Division
Talis Information Ltd
T: 0870 400 5000
W: http://www.talis.com/
Received on Tuesday, 7 April 2009 10:49:49 UTC

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