-----Original Message-----
From: public-lod-requ...@w3.org [mailto:public-lod-requ...@w3.org] On
Behalf Of Kingsley Idehen
Sent: Saturday, October 17, 2009 4:58 PM
To: Juan Sequeda
Cc: h...@ebusiness-unibw.org; public-lod@w3.org
Subject: Re: The Power of Virtuoso Sponger Technology
Juan Sequeda wrote:
Does Sindice crawl this (or any other semantic web search engines)?
Juan,
Sponger is not about Sindice crawling our proxy URIs. The Web of Linked
Data shouldn't be about mass crawling (search engine style) etc... Its
really supposed to be about smarter data network traversals triggered
by
data access requests. Basically, make the pathway "on the fly",
remember
it for future reference, and know when its obsolete.
If you look at it the other way round, our Sponger has Meta Cartridges
that will lookup Sindice (via their APIs) for specific data about a
various entities. It won't seek a complete dump of Sindice etc.. The
same applies to a plethora of Web 2.0 style services.
We can do smart database queries on the Web by simply meshing
fundamental database principles with the inherent sophistication of
HTTP :-)
Kingsley
Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com <http://www.juansequeda.com>
www.semanticwebaustin.org <http://www.semanticwebaustin.org>
On Sat, Oct 17, 2009 at 4:24 AM, Martin Hepp (UniBW)
<h...@ebusiness-unibw.org <mailto:h...@ebusiness-unibw.org>> wrote:
Dear all:
I just found out that the Virtuoso Sponger technology is even
more
powerful than I thought.
Briefly: "Spongers" create rich GoodRelations (and other RDF)
meta-data
for existing Web pages on-the-fly. Other than traditional
screen-scraping approaches, Spongers reuse public APIs and other
techniques, so the data is of unprecedented degree of structure.
Now, this can be directly used in arbitrary queries... by simply
using
the URI of the *existing* HTML Web page in the FROM clause of a
SPARQL
query.
Example:
http://www.amazon.com/Semantic-Web-Real-World-Applications-
Industry/dp/0387485309
is a Web page in plain HTML offering a book. Amazon does not yet
produce GoodRelations meta-data on their pages.
If you go to
http://uriburner.com/sparql
and paste the URI in the "Default Graph URI " field and select
"Retrieve
remote RDF for all missing source graphs", then a query like
"SELECT * WHERE {?s ?p ?o} LIMIT 50"
returns a fully-fledged GoodRelations description for that page -
as if
Amazon was already supporting GoodRelations for each of its > 4
million
items!
There are spongers for BestBuy, eBay, Zillow, and many other
types of
resources.
Wow!
Congrats to Kingsley and his team!
Best wishes
Martin Hepp
--
--------------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen
e-mail: h...@ebusiness-unibw.org <mailto:h...@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!
=================================================================
Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/
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
Project page:
http://purl.org/goodrelations/
Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations
Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: 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_IEEE_CEC%2709
--
Regards,
Kingsley Idehen Weblog:
