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RE: RDF & Jena Question

From: Leo Sauermann <leo@gnowsis.com>
Date: Tue, 9 Dec 2003 23:04:46 +0100
To: <frozados@fibertel.com.ar>, "'RDF-Interest'" <www-rdf-interest@w3.org>
Message-ID: <001d01c3bea0$77262820$0501a8c0@ZION>

Hello Federico,

First of all, this seems more like a RDF-interest question to me, not
specific to jena. (but it may be wise to use Jena for programming)

I could not find the paper you mentioned:
"How to Build your Own Ontology" - zero hits on google, that buffled me
(btw ontology without h)

I can recommend this paper also, funny coincidence: barbara, a library
science and ontology expert recommended it to me, she is giving lectures
on this:

  Ontology Development 101: 
    A Guide to Creating Your First Ontology
  Natalya F. Noy and Deborah L. McGuinness
  Stanford University, Stanford, CA, 94305

google for it....

Then I would recommend to base your ontology on Dublin Core, which is
the first choice for books etc.

you can find more existing ontologies at:

this site is a little outdated (is it? i don't know but forth has
stopped developement, have they?) 
but has LOADS of info:

especially you have to search on all the registries here for existing
ontologies for libraries. I paypal bet you 10 that some ontology for
books already exist and if it is useful, you have to use it (thats the
idea of the SemWeb, to reuse ontologies that not everybody needs to make
new ones)
search here:

on the same site you find libraries for RDF wrappers, they may help you
for extracting the rdf from existing stores:

i recommend:

- Take one concrete libraries (prefereably where you know or can contact
the database admins :-)
- find an ontology for libraries/books and use it. perhaps you have to
adapt it, make subclasses.
- Extract the existing data from the library (the best way is on-the-fly
extraction, I can help you at this, I have done it)
- Make a website where you publish a search / view interface for the
  where one can search for books (the search results should include
links to the original websites, if possible, to lend the books)

this approach would be much more interesting than building your own new
catalogue. It is also a hard job if you manage to adapt a single

Think of it as "a Joseki or URIQA interface to existing library data"
(some people from these projects may assist you when you do it)

For the website, I recommend you take a close look at Joseki. Take
joseki (its integrated to a Java servlet server and Jena) and hack it
until it suits your needs of a book-website. To adapt existing databases
to RDF, I can perhaps help you.

You may also do something like Sesame. They have a nice Web-interface
thing and you may hack their code for your own goals, its open source.

I have hacked a Java Wiki/Blog and integrated Jena to it, this was not
very hard to do.

if you have concrete Jena implementation questions, feel free to mail

Leo Sauermann

> -----Original Message-----
> From: www-rdf-interest-request@w3.org 
> [mailto:www-rdf-interest-request@w3.org] On Behalf Of 
> frozados@fibertel.com.ar
> Sent: Tuesday, December 09, 2003 7:31 PM
> To: Jena Group; RDF-Interest
> Subject: RDF & Jena Question
> Hello, i am doing my thesis and now i have to develope 
> something to show
> the usability of RDF.
> Yesterday i read a paper called "How to Build your Own 
> Onthology" and i
> saw how important is an Onthology. I underestand what is an Onthology.
> Then, i think that i can develope a Library portal that find 
> books between
> Universities because i can insert books into my catalogue 
> using the same
> metadata or Onthology of other Universities. If i can do 
> this, i can show
> how important is RDF and metadata standadars. 
> Now, i want to know if someone has papers about how to 
> develop this or how
> can i search books or information that manage the same 
> metadata as i manage.
> thanks a lot,
> Federico.
> ________________________________________
> FiberTel, el nombre de la banda ancha http://www.fibertel.com.ar
Received on Tuesday, 9 December 2003 17:03:23 UTC

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