- From: Uche Ogbuji <uche.ogbuji@fourthought.com>
- Date: Fri, 01 Oct 2004 14:22:59 -0600
- To: Phil Dawes <pdawes@users.sf.net>
- Cc: Harry Halpin <hhalpin@ibiblio.org>, Jon Hanna <jon@hackcraft.net>, www-rdf-interest@w3.org
> > > Actually I've been finding it very practical (at least working in an > > > intranet environment). Of course you're right - people do need to sort > > > out context, but they also need to be able to do this on a large scale. > > > > "intranet environment" is a closed system. For some reason you snipped > > the part where I said that it *is* perfectly practical in closed systems > > where the symbols can be controlled by management and policy. > > > > Umm.. Apologies if you think I mis-quoted you, but I can't find any > reference to you saying that in the email I replied to. Ooooh, apologies are mine to be made. I'm sorry, but I was confusing my various recent writings on the topic. You couldn't possibly have seen my recent suggestion that Semantic Web technologies should initially target closed systems (such as Intranets) because this suggestion was in an article draft I submitted Wednesday for my next Thinking XML column [1]. The article probably won't be out for a week or so, but for the record, here is the paragraph I was thinking of when I wrongly accused you: "As I opined in the Q&A for the [Web Proper Names] talk, the Semantic Web, based on some proponents' claims, may not be reasonably-sized ambition for the next generation Web. Information technology is predicated on the idea that the material being processed is but an analogue of real-world things. We process computer records of people, organizations, places, ideas and the like, rather than the actuality of these things. The philosophy of names, words and meanings is a very old and contentious one, and the merest contemplation of such issues as precisely what a computer identifier should "mean" in the real world is fraught with endless complications and pitfalls. The Semantic Web should focus on giving Web authors cheap and simple tools (specifically: with open source options and easy enough to be learned in a half day) to annotate pages with their ideas of context. Convention will emerge in each community of topical interest through rough consensus, as it always does when people stumble into any information sharing exercise. Within closed systems (such as in an organization), conventions can be imposed through management (in effect what an identifier means is what corporate policy says it means. Full stop.) Trying to impose universal identifiers or even conventions for identifiers is an impossible task for the Semantic Web whether you're an RDF or Topic Maps proponent." > Never mind. The point I was trying to make was that, yes, people are > required to sort out context, but that once they've decided that they > are able to use a set of symbols to mean something (within an > acceptable margin of error in the outcome), OWL gimmicks like IFP > etc.. are very useful in smushing/processing the data. No argument from me there. Once people have done the uniquely human parts, we should indeed look for machines to help automate the tedious parts. > > "intranet environment" is not "the real, muddy world", which is where I > > said machine merging magic is impractical (because there is no centrally > > controlled grounding of symbols). > > But machine merging magic is driven by people based on context. I'd be > surprised if anybody thought otherwise. The claims being made is that people can dump the context into a box, and in a separate step, agents can pick up the boxes and merge their contents. My argument is that this is not possible, and that people will be needed for interactive input *during* the merging exercise, or the results will be useless, unless policy has been invoked to universalize the meanings of symbol context throughout the system (which is only practical in a closed system). > Also note that even in a closed system with policy etc.. symbols still > squew. Even the owner of a symbol may use it to mean different things > in different contexts. Yes, just as even where there is corporate policy not to use computer resources for personal uses, some employees will still do their eBay-ing at work. That's where management comes in, in theory. In practice, I certainly agree that even in closed systems, automated semantic merging will be very hard. But at least it's feasible. In an open system such as the Web, I do not believe it is at all feasible. -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://4Suite.org http://fourthought.com A hands-on introduction to ISO Schematron - http://www-106.ibm.com/developerworks/edu/x-dw-xschematron-i.html Wrestling HTML (using Python) - http://www.xml.com/pub/a/2004/09/08/pyxml.html XML circles the globe - http://www.javareport.com/article.asp?id=9797 Principles of XML design: Considering container elements - http://www-106.ibm.com/developerworks/xml/library/x-contain.html Hacking XML Hacks - http://www-106.ibm.com/developerworks/xml/library/x-think26.html A survey of XML standards - http://www-106.ibm.com/developerworks/xml/library/x-stand4/
Received on Friday, 1 October 2004 20:23:31 UTC