Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Hugh Glaser
Hi Guys, I am puzzled by the whole discussion, so will try to summarise to find out if I have some misunderstanding. It really is just about finding where the URIs are, and search engines are the game in town. We need to make it really easy for people to find the Linked Data URIs they need.

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Martin Hepp (UniBW)
Guys, the Web of Data cannot rely on mass data crawling of the whole Web but must combine cached data with federated on-demand queries. Structured data requires much faster update cycles than typical text-based Web indices. For example, Google and Yahoo can rely on the fact that

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Giovanni Tummarello
I'd say, if i understand well that that works only for queries where you need the extra dereferenced data just additionally e.g. to add a label to your result se if you need the remote, on the fly reference data to e.g. sort by price you'd have to fetch all from the remote site .. Gio On Sun,

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Giovanni Tummarello
I agree wihtt this, a combination of the 2, without into unrealistic services descriptions, is exactly its the question. its great to be talking about this. I'd be gladly have a chat about all this at ISWC for those who are there? Cheers Giovanni On Sun, Oct 18, 2009 at 8:37 AM, Martin Hepp

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Giovanni Tummarello
A) The wrapper's Semantic Sitemap points you at the original Sitemap, and says how it is doing the wrapping. And because you know how the wrapper is behaving, you can process the standard Sitemap to get the information you want about what the wrapping site provides. Actually, the slicing in

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Hugh Glaser
The SWCL-style approach works pretty well as long as the RDF you want about the URIs is the stuff you get by resolving. It can be much more problematic if the URI is in some site such as (a wrapped) Amazon, saying what is the price of a book identified by a publisher's URI. There are ways round

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Olaf Hartig
On Sunday 18 October 2009 17:50:58 Hugh Glaser wrote: The SWCL-style approach works pretty well as long as the RDF you want about the URIs is the stuff you get by resolving. Right, that's the fundamental assumption. And that's what Linked Data is about. ;-) It can be much more problematic if

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Hugh Glaser
On 18/10/2009 17:12, Olaf Hartig har...@informatik.hu-berlin.de wrote: On Sunday 18 October 2009 17:50:58 Hugh Glaser wrote: The SWCL-style approach works pretty well as long as the RDF you want about the URIs is the stuff you get by resolving. Right, that's the fundamental assumption.

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Kingsley Idehen
Olaf Hartig wrote: Hey, On Sunday 18 October 2009 09:37:14 Martin Hepp (UniBW) wrote: [...] So it will boil down to technology that combines (1) crawling and caching rather stable data sets with (2) distributing queries and parts of queries among the right SPARQL endpoints (whatever actual

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Kingsley Idehen
Hugh Glaser wrote: Hi Guys, I am puzzled by the whole discussion, so will try to summarise to find out if I have some misunderstanding. It really is just about finding where the URIs are, and search engines are the game in town. We need to make it really easy for people to find the Linked Data

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Kingsley Idehen
Frederick Giasson wrote: Hi all, The Web of Linked Data shouldn't be about mass crawling (search engine style) etc... It has to be. How would you answer a query like all offers for a book written by a German author without crawling the relevant data sets? First question would be:

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Juan Sequeda
Does Sindice crawl this (or any other semantic web search engines)? Juan Sequeda, Ph.D Student Dept. of Computer Sciences The University of Texas at Austin www.juansequeda.com www.semanticwebaustin.org On Sat, Oct 17, 2009 at 4:24 AM, Martin Hepp (UniBW) h...@ebusiness-unibw.org wrote: Dear

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Kingsley Idehen
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

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Juan Sequeda
...@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

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Kingsley Idehen
: 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

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Kingsley Idehen
: Saturday, October 17, 2009 4:58 PM To: Juan Sequeda Cc: h...@ebusiness-unibw.org mailto:h...@ebusiness-unibw.org; public-lod@w3.org mailto:public-lod@w3.org Subject: Re: The Power of Virtuoso Sponger Technology Juan Sequeda wrote: Does Sindice crawl this (or any

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Frederick Giasson
Hi all, The Web of Linked Data shouldn't be about mass crawling (search engine style) etc... It has to be. How would you answer a query like all offers for a book written by a German author without crawling the relevant data sets? First question would be: which dataset has this

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Giovanni Tummarello
With respect to crawling and scraping or sponging or .. trying to guess based on partial fragments of structured information i can say 3 thngs a) No, we're not doing it at the moment, we are only covering those who chose to put structured semantics. Some book stuff shows up in Sig.ma .. e.g.

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Kingsley Idehen
Giovanni Tummarello wrote: With respect to crawling and scraping or sponging or .. trying to guess based on partial fragments of structured information i can say 3 thngs a) No, we're not doing it at the moment, we are only covering those who chose to put structured semantics. Some book stuff