W3C home > Mailing lists > Public > public-lod@w3.org > July 2009

Re: owl:sameAs [recipe]

From: Eric Lease Morgan <eric_morgan@infomotions.com>
Date: Tue, 28 Jul 2009 23:01:21 -0400
Message-Id: <217640F7-6B1C-4AF4-9C58-BCB0C9D6294A@infomotions.com>
To: public-lod@w3.org

On Jul 27, 2009, at 9:47 PM, Alan Ruttenberg wrote:

>>  3. In resources of etexts, include owl:sameAs links to DBpedia  
>> resources
> As I pointed out before, these are not sameAs. The dbpedia resource
> are better understood as representing the expression, in the FRBR
> sense, and the link from expression to manifestation is not sameAs.
>> For example, the following resource descriptions:
>> <!-- etext #1; points to local author and remote title -->
>> <rdf:RDF
>>  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>>  xmlns:dcterms="http://purl.org/dc/terms/"
>>  xmlns:owl="http://www.w3.org/2002/07/owl#"
> +  xmlns:frbr = "http://purl.org/vocab/frbr/core#"
>>  <rdf:Description
>>    rdf:about="http://infomotions.com/etexts/id/more-utopia-221"
> -    owl:sameAs="http://dbpedia.org/resource/Utopia_(book)">
> +   frbr:embodimentOf="http://dbpedia.org/resource/Utopia_(book)"
> <
>>    <dcterms:title>Utopia</dcterms:title>
>>    <dcterms:creator
> - rdf:resource="http://infomotions.com/etexts/authors/resource/thomas-more 
> " />
> + rdf:resource="http://dbpedia.org/resource/Thomas_More"/>
>>  </rdf:Description>
> <rdf:description rdf:about="http://infomotions.com/authors/page/thomas-more 
> ">
>  <foaf:primaryTopic rdf:about="http://dbpedia.org/resource/ 
> Thomas_More">
> </rdf:Description>
>> </rdf:RDF>

Alan, thank you. You are correct. My local manifestation of Utopia by  
Thomas More is not the same as the description of it on DBpedia. The  
use of frbr:embodimentOf makes much more sense. So many vocabularies!

On the other hand, I desire to create a local "knowledge base"  
representing the locally owned content as well as providing links to  
the greater (Semantic) Web. That is why I desire to mint local URIs of  
commonly held resources, such as Thomas More, and at the same time  
link out to DBpedia. I desire to do this for two reasons. First, the  
collection of electronic texts I curate is not randomly put together  
but all surround a common set of themes. It is my hope that this  
collection, its inter-relationships, and the software supporting it  
will foster the creation of new and undiscovered knowledge or  
insights. By minting my own URIs I can better demonstrate these  
relationships. One of those relationships is, "These items authored by  
Thomas More are all a part of the this particular domain and you will  
be able to use the tools here to do your exploring." Another example,  
I am using text mining techniques to automatically generate keywords  
and phrases from texts. I plan to associated these keywords and  
phrases with the texts as metadata, but also and common theme written  
by authors. "This author often writes on these topics."

Second, less importantly, and probably nonsensically, I desire to  
create a collection that is self-contained, possibly portable, and  
usable even when other technologies are not available, such as the  
network. If I solely rely on remote links/resources then I am less  
able to make the collection self-contained. Call me an Internet  
survivalist.  :-)

Finally, I sincerely appreciate the input. I would be silly to share a  
recipe and not be willing to accept some criticism against it. Thank  
you. This represents the strength of community.

Eric Lease Morgan
Received on Wednesday, 29 July 2009 02:57:01 UTC

This archive was generated by hypermail 2.4.0 : Thursday, 24 March 2022 20:29:44 UTC