- From: Dan Brickley <danbri@w3.org>
- Date: Fri, 19 Apr 2002 11:48:52 -0400 (EDT)
- To: "R.V.Guha" <guha@guha.com>
- cc: Danny Ayers <danny666@virgilio.it>, Jeremy Carroll <jjc@hplb.hpl.hp.com>, <www-rdf-interest@w3.org>
On Fri, 19 Apr 2002, R.V.Guha wrote: > > > <shameless_promotion_of_own_project> > > You might want to take a look at this url for an example > of combining web services from different places > with google search results based on the semantics of the query. > All the code and the kb is available for free ... > > </shameless_promotion_of_own_project> <shameless_promotion_of_guhas_project> http://www.alpiri.com/ss/ is pretty cool, especially the knowledge base (or 'database' for the KR-averse). I do think we often worry too much about technologies to support sweeping generalisations (reasoning about class hierarchies, rule systems etc) while not paying enough attention to the individual resources those hierarchies are describing. So the TAP/Alpiri KB is nice as it is pretty focussed on specific things, rather than on capturing a worldview that generalises about those things. ...and this is where network effects and the (blah blah semantic) Web come in. knowing that XML file A and XML file B are describing the selfsame thingy is extraordinarily useful. We can answer questions that require information from both A and B. Seems so simple, but makes such a difference. 'Guha's big list of useful things to describe' (aka the KB) makes it easier for us to merge scattered descriptions of them. Even if we don't take much notice of the worldview implicit in his ontology. </shameless_promotion_of_guhas_project> <shameless_trailer_for_own_project> ...this turns out to be useful for something I'm working on with some friends. We're writing RDF to describe digital images, especially who is in which picture, along with wordnet classifications and SVG path outlines. Most people in the photos we've catalogued can be picked out usign a mailbox or homepage property. But then we wanted to describe a photo of JFK, of Bill Clinton, and of Frank Sinatra. We didn't know their email addresses; bummer. Fortunately enough, Guha and co have (in the big-list-of-useful-things-to-describe) assigned Alpiri/TAP identifiers to those 3 people. So we can start describing them in a somewhat more realistic manner. More on all this eventaully. If you rummage around http://rdfweb.org/ you'll see some of what we've been up to. The photo stuff is at http://rdfweb.org/2002/01/photo/ and nearby, with Libby's Java implementation at http://swordfish.rdfweb.org/discovery/2001/08/codepict/allpeople.jsp ...along with links to a paths-thru-the-image-data tool that Damian and Libby implemented recently. An example query, finding paths thru images connecting the person with mailbox mailto:guha@guha.com to the person with mailbox mailto:president-35@whitehouse.gov see: http://swordfish.rdfweb.org/discovery/2002/02/paths/allabout.jsp?mbox=mailto%3Aguha%40guha.com&mbox2=mailto%3Apresident-35%40whitehouse.gov This is an example of the value of (a) common data model (b) common mechanisms for identification that go beyond the fiction that 'everything has a URI'. more demos, writeups etc after WWW2002... </shameless_trailer_for_own_project> dan > > guha >
Received on Friday, 19 April 2002 11:49:58 UTC