Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!dali.cs.montana.edu!uakari.primate.wisc.edu!sdd.hp.com!hplabs!otter.hpl.hp.com!hpltoad!hpltoad!ewc From: ewc@hplb.hpl.hp.com (Enrico Coiera) Newsgroups: comp.ai Subject: Re: Re: Unified model for knowledge representation? (Impossible) Message-ID: <1991Jun04.082625.13317@hplb.hpl.hp.com> Date: 4 Jun 91 08:26:25 GMT References: <9106040003.AA12879@lilac.berkeley.edu> Sender: news@hplb.hpl.hp.com (Usenet News Administrator) Reply-To: ewc@hplb.hpl.hp.com (Enrico Coiera) Organization: Hewlett-Packard Laboratories Lines: 22 Nntp-Posting-Host: ecoiera.hpl.hp.com Steven Smoliar's follow-up contains an interesting suggestion ie that 'there is no such thing as subjective description. Description is highly subjective to the person doing the subscribing'. A similar view is shared by Paul Compton (see P. Compton, R. Jansen, A Philosophical basis for Knowlege Aquisition, Knowledge Aqusition, (1990), 2, 241-257). He suggests that there is little point in attempting to structure the knowledge elicited from experts because each expert 'makes-up' the knowledge as it were in the context of a particular problem. While each individual has an internal representation of some form, the way in which it is communicated to others is highly context dependent - the knowledge elicited in context only has validity in that context - it makes no sense to attempt to represent it in a way in which it can be considered context independent. Enrico Coiera Hewlett Packard Labs Filton Rd Stoke Gifford, Bristol BS12 6QZ United Kingdom