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Re: My Web Site Description in OWL

From: Phil Archer <phil@philarcher.org>
Date: Mon, 26 Jan 2009 15:22:21 +0000
Message-ID: <497DD52D.5090401@philarcher.org>
To: Tobias Bürger <tobias.buerger@sti2.at>
CC: "semantic-web@w3.org" <semantic-web@w3.org>, Andrea Perego <andrea.perego@uninsubria.it>

Ah, an interesting one - and something we have grappled with before now.

The problem is that, of course, at a network level there is no such 
thing as a Web page, i.e. there's no way to say "if it's an element of 
page x then infer fact y." You can really only do that in the browser.

Actually OASIS ORE [1] might do what you want? But, what POWDER is 
really good at (indeed designed for) is... if you include some sort of 
id in your image URIs - which might be in the path or a query string, 
the you can say:

<iriset>
   <includehosts>example.com</includehosts>
   <includepathstartswith>/images</includepathstartswith>
   <includepathcontains>foo</includepathcontains>
</iriset>

And then associate all resources that match that URI structure with a 
description (which can, of course, include authorship).

You can create as many Description Resources in a POWDER doc as you 
like, and we have defaults as well, so you can say something like:

If it's on example.com and the path starts with /foo then it's by Joe 
Bloggs, but if it's anywhere else on example.com then it's by Jane 
Smith. I give examples in XML but the GRDDL (XSLT) transform will get 
you into RDF/OWL land (note the links in the blog rather than the WG 
homepage for now).

This may or may not help!

Phil.

[1] http://www.openarchives.org/ore/

Tobias Bürger wrote:
> 
> Hi Phil,
> 
> does POWDER also allow to state different creators for different 
> resources (e.g. multiple images) in a web page? Think of a listing of a 
> search result retrieved from Flickr in which you might want to refer to 
> different creators....
> I read the POWDER primer recently but could find any anwser to my question.
> 
> Thank you in advance for your answer!
> 
> Cheers,
> 
> Tobias
> 
> Phil Archer wrote:
>>
>> I'm grateful to David for making the connection here.
>>
>> Cristiano,
>>
>> POWDER may do just what you want. It allows you to apply, say, your 
>> dcterms:creator property to every resource on your Web site in one go, 
>> rather than resource by resource. It does this by applying properties 
>> and value to all URIs that match your web site's domain name (and/or 
>> any other restrictions you care to make). An XSLT will transform a few 
>> lines of XML into OWL for you.
>>
>> The WG homepage is a little out of date but the documents linked there 
>> are close to the final ones (let me know if you want the temporary 
>> URIs of the more up to date versions). A blog post of mine gives you 
>> (up to date) links to various bits of running code [1], including that 
>> XSLT.
>>
>> If you prefer to communicate in Italian, POWDER WG Andrea Perego in 
>> Varese is your man.
>>
>> Cheers
>>
>> Phil.
>>
>> [1] 
>> http://www.w3.org/blog/powder/2009/01/16/situation_report_16_january_2009
>>
>> Cristiano Longo wrote:
>>> ehm ... no
>>>
>>> --- Lun 26/1/09, Booth, David (HP Software - Boston) <dbooth@hp.com> 
>>> ha scritto:
>>> Da: Booth, David (HP Software - Boston) <dbooth@hp.com>
>>> Oggetto: RE: My Web Site Description in OWL
>>> A: "cristiano_longo@yahoo.it" <cristiano_longo@yahoo.it>, 
>>> "semantic-web@w3.org" <semantic-web@w3.org>
>>> Data: Lunedì 26 gennaio 2009, 14:57
>>>
>>> Are you using POWDER?
>>> http://www.w3.org/2007/powder/
>>>  
>>>
>>>
>>> David Booth, Ph.D.
>>> HP Software
>>> +1 617 629 8881 office  |  dbooth@hp.com
>>> http://www.hp.com/go/software
>>>
>>> Statements made herein represent the views of the author and do not 
>>> necessarily
>>> represent the official views of HP unless explicitly so stated.
>>>
>>>
>>>  
>>>
>>>
>>>
>>> ________________________________
>>>
>>>     From: semantic-web-request@w3.org 
>>> [mailto:semantic-web-request@w3.org] On
>>> Behalf Of Cristiano Longo
>>>     Sent: Monday, January 26, 2009 6:17 AM
>>>     To: semantic-web@w3.org
>>>     Subject: My Web Site Description in OWL
>>>             Hi, I'm trying to provide an rdf (preferably OWL) 
>>> description of the
>>> resources contained in my web site. At the higher level, a web site 
>>> is a set of
>>> web resources. RSS 1.0 may be a good starting point. It provides 
>>> properties to
>>> specify a title of a resource, an autor and the mime type. But I have 
>>> two
>>> questions :
>>>         (1) I'm wrong if I use a Resource as target of the dc:creator 
>>> property?
>>>     (2) instead of string, there are uri's that represents media types?
>>>         Then, i would like to say that the online resource contains 
>>> information about
>>> something. I think that seeAlso is not enough expressive.
>>>         Suggestions?
>>>         Thanks in advance,
>>>     Cristiano Longo       
>>>
>>>
>>>
>>>
>>>       
>>
> 

-- 
Phil Archer
w. http://philarcher.org/
Received on Monday, 26 January 2009 15:23:01 UTC

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