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Re: [Freebase-experts] ISBNs, owl:sameAs, etc

From: Martin Hepp (UniBW) <martin.hepp@ebusiness-unibw.org>
Date: Thu, 07 Jan 2010 22:39:48 +0100
Message-ID: <4B4654A4.2080505@ebusiness-unibw.org>
To: Ross Singer <rossfsinger@gmail.com>
CC: Kingsley Idehen <kidehen@openlinksw.com>, Daniel O'Connor <daniel.oconnor@gmail.com>, Freebase Experts <freebase-experts@freebase.com>, public-lod@w3.org
hi ross,
apologies for the delay!

as long as both URIs represent a book title, i have no objections.

my comment was a rather generic warning - URNs and "non-URN URIs" can of 
course be linked by owl:sameAs.

intelligence of a human or machine agent depends on the subtleness and 
quality of that agent's category system. if everything is sameAs to lots 
of other things, then the amount of intelligent conclusions you can draw 
from the LOD cloud will be limited.

best
martin



Ross Singer wrote:
> Martin,
>
> Given that there's apparently considerable disagreement here (and
> probably plenty of confusion), can you elaborate on what exactly you
> object to in this request?
>
> The first objection I saw raised was by Tom Morris ("is a FreeBase
> topic really a book?") and agree that urn:isbn:9780670063260 is not
> the same thing as http://rdf.freebase.com/ns/en.on_the_road.
>
> However, I'm not sure I see that distinction between
> urn:isbn:9780670063260 and
> http://rdf.freebase.com/ns/soft.isbn.9780670063260.best as they're
> both trying to identify an edition (or, loosely, a frbr:Manifestation)
> of a work.
>
> My questions would be:
> 1) If the latter relationship is not a good fit for owl:sameAs, why?
> 2) if #1 is true, what is a better alternative?
>
> I understand the rationale of not wanting to water down the semantics
> of owl:sameAs to the point that it's little more than rdfs:seeAlso
> with louder voice.  At the same time, it's difficult to see if your
> issue is with a type mismatch between a URN and a URI; how FreeBase
> models their data; or general "mutually assured destruction"-ness of
> owl:sameAs.
>
> Thanks,
> -Ross.
>
> On Mon, Jan 4, 2010 at 4:22 PM, Martin Hepp (UniBW)
> <martin.hepp@ebusiness-unibw.org> wrote:
>   
>> dear all:
>> quite clearly, a book title is not the same as a book, and if the linked
>> data community continues to link apples and oranges via owl:sameAs then
>> either
>>
>> - the socially agreed meaning owl:sameAs is being degraded to untyped href
>> in HTML
>> or
>> -  vast amount of data in the linked data cloud turns useless
>>
>> but as a minimum precaution against spoiling the graph of data, put your
>> sameAs statements into separate graphs so that meaningful applications can
>> filter them out easily.
>>
>> best
>>
>> martin
>>
>> Kingsley Idehen wrote:
>>     
>>> Daniel O'Connor wrote:
>>>       
>>>> On Tue, Dec 29, 2009 at 6:02 PM, Tom Morris <tfmorris@gmail.com
>>>> <mailto:tfmorris@gmail.com>> wrote:
>>>>
>>>>    But is the description of the book (ie Freebase topic) really the same
>>>>    thing as the book?
>>>>
>>>>    Assuming it was, wouldn't you not only have to make the sameAs
>>>>    assertions and publish them someplace, but also get them loaded into
>>>>    sameas.org <http://sameas.org>?
>>>>
>>>>    Tom
>>>>
>>>>    On Tue, Dec 29, 2009 at 1:35 AM, Shawn Simister
>>>>    <narphorium@gmail.com <mailto:narphorium@gmail.com>> wrote:
>>>>    > Are you just looking for a script that can make the 'same as'
>>>>    assertions
>>>>    > like this?
>>>>    >
>>>>    > http://rdfbooks.freebaseapps.com/ns/soft.isbn.9780670063260.best
>>>>    >
>>>>
>>>>
>>>> Ah hah!
>>>>
>>>> Now how to (nicely) get that indexed...
>>>>         
>>> Make a linkset and publish it via:
>>>
>>> 1. A data dump
>>> 2. SPARQL endpoint
>>> 3. Your Linked Data Space .
>>>
>>> Then you have your index, and others can make their variants by meshing
>>> their data with yours :-)
>>>
>>> Re. DBpedia, we can add the linkset to its own Named Graph as we've done
>>> with other linksets.
>>>
>>>       
>> --
>> --------------------------------------------------------------
>> martin hepp
>> e-business & web science research group
>> universitaet der bundeswehr muenchen
>>
>> e-mail:  hepp@ebusiness-unibw.org
>> phone:   +49-(0)89-6004-4217
>> fax:     +49-(0)89-6004-4620
>> www:     http://www.unibw.de/ebusiness/ (group)
>>        http://www.heppnetz.de/ (personal)
>> skype:   mfhepp twitter: mfhepp
>>
>> Check out GoodRelations for E-Commerce on the Web of Linked Data!
>> =================================================================
>>
>> Project page:
>> http://purl.org/goodrelations/
>>
>> Resources for developers:
>> http://www.ebusiness-unibw.org/wiki/GoodRelations
>>
>> Webcasts:
>> Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
>> How-to   - http://vimeo.com/7583816
>>
>> Recipe for Yahoo SearchMonkey:
>> http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey
>>
>> Talk at the Semantic Technology Conference 2009: "Semantic Web-based
>> E-Commerce: The GoodRelations Ontology"
>> http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287
>>
>> Overview article on Semantic Universe:
>> http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html
>>
>> Tutorial materials:
>> ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on
>> Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
>> http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009
>>
>>
>>
>>
>>     
>
>
>   

-- 
--------------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  hepp@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax:     +49-(0)89-6004-4620
www:     http://www.unibw.de/ebusiness/ (group)
         http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=================================================================

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009
Received on Thursday, 7 January 2010 21:44:29 UTC

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