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Re: UDEF Representation in RDF

From: Thad Guidry <thadguidry@gmail.com>
Date: Wed, 9 May 2012 09:45:50 -0500
Message-ID: <CAChbWaN7sFZCsCxRUQWomYsWoxhQXhSvbEr2S9Z+d00RSCju_g@mail.gmail.com>
To: Chris Harding <c.harding@opengroup.org>
Cc: Simon Spero <sesuncedu@gmail.com>, public-esw-thes@w3.org, "richard.parent" <richard.parent@servicesquebec.gouv.qc.ca>
> >
> > Is the  relationship between the fields strictly one of about-ness;
> everything that is in some way about a
> United-States.Air-Force.Assigned.Identifier it is in somewhat about an
> Air-Force.Assigned.Identifier?
> >
> A Military.Aircraft.Asset_United-States.Air-Force.Assigned.Identifier is a
> Military.Aircraft.Asset_Air-Force.Assigned.Identifier. It is also a
> Aircraft.Asset_United-States.Air-Force.Assigned.Identifier, an
> Asset_Identifier, and all the combinations in between.
> I don't believe we should think in terms of joins in the classical sense,
> but rather about deductions to be made from the information contained in
> different records, that might produce new records containing derived
> information. (This is a bit like the difference between SPARQL and SQL).
> UDEF tagging can make a meaningful contribution to such deductions, even if
> the tags cannot be used to identify fields on which to join records.
I don't think it is really about "all combinations in between", but instead
this sounds like what your really just trying to allude to is that:

The United States maintains an Armed
Force<http://www.freebase.com/view/military/armed_force>in the
category of Air Defense.  And similarly, the Royal Canadian Air
Force is an Armed Force
<http://www.freebase.com/view/military/armed_force>in the same
category of Air Defense.  And that most "Air Defense
categorized Armed Forces" typically will maintain an "Aircraft Asset ID"
that is assigned by that Armed Force.

Received on Wednesday, 9 May 2012 14:46:31 UTC

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