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I
agree.
Regards
Matthew West
Reference Data Architecture and
Standards Manager
Shell International Petroleum Company Limited
Shell
Centre, London SE1 7NA, United Kingdom
Tel: +44 20 7934 4490 Mobile: +44
7796 336538
Email: matthew.west@xxxxxxxxx
Internet: http://www.shell.com
http://www.matthew-west.org.uk/
I do not believe that starting from one ontology
is a good idea. No one ontology can serve as a hub. That requires
something like the "lattice" John Sowa talks about. That lattice must be
built by starting from a number of ontologies and successively incorporating
more.
On another note, it would be helpful if someone could provide an
example of what the COSMO would look like. This would not need to be
comprehensive or necessarily the best structure, just illustrate the format of
what is to be built.
DS
At 10/10/2005 09:19 PM, you
wrote:
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Hi folks;
This growing list
of support is exciting!
I'm going to exercise the prerogative,
which Pat assigned me as COSMO lead, to dispense with formalities and diving
right into our business. To that end, I've included a
straw-person process for evolving toward a common semantic model. This
is meant strictly as a starting point for discussion.
The
straw-person is an attempt to incorporate lessons learned from the Standard
Upper Ontology (SUO) effort while offering:
· short term
usable results,
· respect for
and use of existing formal ontological artifacts, and
· incremental
sound formal results.
This approach, I think, includes the key elements that Dr.
Sowa asked for in the SUO framework and provides a staging of effort and
results that assumes modest amount of effort on our parts. It also
addresses Pat's desire to be inclusive of the European
efforts.
The suggesting steps are as
follows:
1. Choose an existing ontology as the initial
embodiment of an ontology integration hub to which other ontologies will be
mapped
a. Agree on a
set of metrics for selection of the ontology integration hub
i.
Metrics must be easily collectable
b. Agree on
candidates for the selection process
c. Score candidate ontologies according to
metrics - the high scoring upper ontology will become the initial ontology
integration hub
2. Release this
ontology as-is as the initial COSMO ontology
3. Address key
short-falls of the hub ontology
a. Maintain a prioritized list of
issues
b. Agree on
resolution as time and interest dictate
4. Map the structural axioms (ground atomic
formulae) of the remaining candidate ontologies to the ontology integration
hub
a. This process
proceeds opportunistically as our personal and project time allows
b. Push out
yearly major releases based on achievement of yearly goals
c. This step
runs concurrently with step three
5. Map the remaining axioms of the remaining
candidate ontologies to the ontology integration hub
a. As desired,
such free-form axioms can be added in steps three and four
Please excuse the
roughness. My other tasks beckon.
I look forward
suggestions.
Best!
Eric
Peterson
Chief Ontologist
McDonald Bradley
Inc.
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Dagobert Soergel
College of Information
Studies
University of Maryland
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