I'm sure I don't know anything about the maths of all this, but isn't the obvious solution to have SMW use *something else* to represent it's isa relationship (e.g. [[Isa::Thing]], and leave Category to perform its original purpose in a wiki?
The primary advantage of using Category is that it's familiar, and people may have already used it in an isa-like way, at least some of the time, meaning you can upgrade an existing wiki to a semantic wiki and have it do some work straight away. Once people have got the hang of this, attributes, relationships and a more formal ontology (I'm just throwing buzzwords around here) would hopefully improve the wiki to the point where the semantic metadata becomes something really valuable. However, you could reach this point without hijacking the category mechanism, and thereby depriving people of its more general properties. -Alex Brown On 9 Aug 2007, at 18:34, Uschold, Michael F wrote: > Yes, that is an obvious solution. The tradeoff is that you now > don't get to say the relationship is hierarchical and get > transitive inference, like you get with Category. > > As others have said, there is a real need for other transitive > relations that can give back the functionality we had with > Category, but that was taken away from us in SMW because of its > restricted use constraints. > > Thanks > Michael > > ========================== > Michael Uschold > M&CT, Phantom Works > 425 373-2845 > [EMAIL PROTECTED] > ========================== > > ---------------------------------------------------- > COOL TIP: to skip the phone menu tree and get a human on the phone, > go to: http://gethuman.com/tips.html > > > > > From: Yaron Koren [mailto:[EMAIL PROTECTED] > Sent: Thursday, August 09, 2007 5:49 AM > To: Uschold, Michael F > Cc: [EMAIL PROTECTED]; semediawiki- > [EMAIL PROTECTED]; [EMAIL PROTECTED]; > Kitzmiller, Ted; Jones, David H; Folger, Deborah H > Subject: Re: [Semediawiki-user] What to use instead of [[Category: > x]] in SMW? > > The obvious solution is to use semantic tags for this information - > a relation or attribute like "Covers topic" could work nicely; you > could then have as many of these as you wanted on a page. > > -Yaron > > On 8/8/07, Uschold, Michael F <[EMAIL PROTECTED]> wrote: > If one restricts usage of Category in the SMW to get the right > semantics of instance and subclass, then it cannot be used for > other things that one uses Category for in MW to put things into > 'buckets'. > > Say there is a discussion about two different classes (chimpanzees > and gorillas). In the MW, you would just put the page into the > chimpanzee and gorilla categories, and it would mean that this page > was about these two topics. But if I do that in SMW, it will think > that this comparison page is an instance of both chimpanzee and > gorilla, which is wrong. > > I could create a parallel class hierarchy and create categories > called PageAboutTopicChimpanzee and PageAboutTopicGorilla and this > page would correctly be interpreted as an instance of these > categories. I would also have to re-create each sub-category link too. > > This would work, but means you have to manually keep the two > hierarchies in synch, which is not ideal. > > What is the recommended way to put pages into 'buckets' in SMW? > > Is this discussed somewhere already? > > I welcome your thoughts. > > Thanks, > Michael > > ========================== > Michael Uschold > M&CT, Phantom Works > 425 373-2845 > [EMAIL PROTECTED] > ========================== > > ---------------------------------------------------- > COOL TIP: to skip the phone menu tree and get a human on the phone, > go to: http://gethuman.com/tips.html > > > > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a > browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Semediawiki-user mailing list > Semediawiki-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/semediawiki-user > > > _______________________________________________ > swikig mailing list > [EMAIL PROTECTED] > http://www.aifb.uni-karlsruhe.de/mailman/listinfo/swikig ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Semediawiki-user mailing list Semediawiki-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/semediawiki-user
