- From: Sandro Hawke <sandro@w3.org>
- Date: Thu, 09 Sep 2004 15:20:28 -0400
- To: Norman Walsh <Norman.Walsh@Sun.COM>
- cc: www-tag@w3.org
> |> Assertions that http://xmlns.com/wordnet/1.6/Hoary_Marmot is a web > |> page or has a particular creator or last modified date or > |> what-have-you are inconsistent. > | > | This seems to me the crux -- on what basis do you assert they are > | inconsistent? > > I'm appealing to your experience. Given two assertions: > > http://xmlns.com/wordnet/1.6/Hoary_Marmot is_a "Hoary Marmot" > http://xmlns.com/wordnet/1.6/Hoary_Marmot is_a "web page" > > Your undertanding of what it means to be a Hoary Marmot (in particular > that all such things belong to each of the following classes of > things: marmots, rodents, gnawing animals, placental mammals, > eutherian mammals, mammals, vertibrates, craniates, chordates, > animals, organisms, living things, animate things, and physical > objects) will lead you to conclude that those assertions are > inconsistent. > > I could have made some additional statements to express explicitly > that the set of hoary marmots and the set of web pages are disjoint, > but I didn't bother. > > | How might I have figure that out for myself? > > You, the human being, relies on wetware. A machine is going to rely > on...something else. The trick is not to make assertions that you > can't prove, I suppose. > > | How might > | my search engine have figure it out for _itself_? > > I have no idea. Did my earlier message [1] sketch this out well enough, or would you like my approach documented in more detail? I don't actually have owl:disjointWith reasoning and web-retrieval in the same code base yet, but I could explain how they would fit together. -- sandro [1] http://lists.w3.org/Archives/Public/www-tag/2004Sep/0074.html
Received on Thursday, 9 September 2004 19:18:08 UTC