Re: [unrev-II] Fwd: Fw: Re: [PORT-L] Goguen's Semiotic Morphisms

From: N. C a r r o l l (ncarroll@hastingsresearch.com)
Date: Mon Apr 02 2001 - 22:53:27 PDT

  • Next message: Peter Jones: "RE: [unrev-II] Re: [PORT-L] Goguen's Semiotic Morphisms"

    deer +montana = food
    deer +california = sierra club lawsuit
    cow +ownership = merchandise
    cow -ownership = rustling
    fence +well-tended = fence
    fence +abandoned = firewood

    --
    ________________________________
    Nicholas Carroll
    ncarroll@hastingsresearch.com
    Travel: ncarroll@iname.com
    http://www.hastingsresearch.com
    ________________________________
    ----- Original Message -----
    From: Eric Armstrong <eric.armstrong@eng.sun.com>
    To: <unrev-II@yahoogroups.com>
    Sent: Monday, April 02, 2001 5:22 PM
    Subject: Re: [unrev-II] Fwd: Fw: Re: [PORT-L] Goguen's Semiotic Morphisms
    

    > Matt Placek wrote: > > > > Many of the approaches to building ontologies seem to be fixated on a > > 'present-tense' description of the nature of things. > > > Great question. It strikes me that you are asking about how to model > a state change in the context of an ontology. Lets take water and > heat: > > water + heat => hot water > > water + sufficient heat => steam > > water - heat => cold water > > water - sufficient heat => ice > > Hmmm. That example introduces yet another issue: amountOf. > Simply adding heat to water does not predict which state > change occurs -- the result depends on the previous state > and the amount of heat. > > But leaving the issues of quantity aside, for the moment, > your question revolved around a simpler state change: > > cow + slaughter => food > > Here there is time-based complexity, because once the > slaughter association occurs, the cow object ceases to > exist and the food object comes into being! > > One way to model that in an ontology might be to come > up with a single thing that is BOTH a cow and food. > Let's call it "bag o'protein". > > We might now be able to model "bag o'protein" has > having one or more states (cow or food), and model > the transitions from one state to the next. > > On the other hand, using an ontology to do that modeling > is probably the wrong tool for the job. But it sure as > heck is an interesting question! (I look forward to other > responses.) > > > Community email addresses: > Post message: unrev-II@onelist.com > Subscribe: unrev-II-subscribe@onelist.com > Unsubscribe: unrev-II-unsubscribe@onelist.com > List owner: unrev-II-owner@onelist.com > > Shortcut URL to this page: > http://www.onelist.com/community/unrev-II > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

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