Transcript attachment 5

Misc. Presentations
Steve Carson
GSC Associates
for JTC 1/SC 24 WG 8 Palm Springs, CA USA
August 2001
GSC Associates
Groups for discussion
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A -- most general comments
B -- PAB IHO, FACC refinements
C -- GSC country code refinements (in UK comments)
D -- comments on definitions of abstract sets
E -- comments that just change or add EG assignments
F -- GSC comments on structured definitions
G -- other new and revised definitions (some select ones need to
be pulled out as there are some overlapping comments)
• - comments on the main body text
• - the comments on table entries that overlap or that might be
controversial
• - editorial comments
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Religions – how current enumerants map
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Buddhist xxxx
Christian xxxx
Greek Orthodox
Judaism xxxx
Moslem  Islam xxxx
Protestant
Roman Catholic
Shinto xxxx
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Concepts and definitions
Concept
intension
Definition
extension
Set of instances
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Suggestions for NR and QR
• If the EDCS definition is intended to represent the
same concept as a definition from an external
reference, then we can make a NR to that
definition.
• If the EDCS definition is derived from but does
NOT represent the same concept as the external
definition then we can make a QR to that
definition.
• Example: A_OR_B mapping to A and to B
separately
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When are two definitions “the same”?
Consider these definitions of aluminum:
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A light silvery ductile and malleable metal, not readily tarnished by air, which
is a chemical element, atomic no. 13 (Symbol Al) - The New Shorter Oxford
English Dictionary
A silvery-white, ductile metallic element, the most abundant in the earth's crust
but found only in combination, chiefly in bauxite. Having good conductive and
thermal properties, it is used to form many hard, light, corrosion-resistant
alloys. Atomic number 13; atomic weight 26.98; melting point 660.2°C;
boiling point 2,467°C; specific gravity 2.69; valence 3. - The American
Heritage® Dictionary of the English Language, Fourth Edition
A lightweight silvery metal used either pure or as an alloy for making utensils
or fittings where lightness is an advantage. - Oxford American Dictionary
A silvery light and malleable metal, not tarnished by air. - The Pocket Oxford
Dictionary
A silvery lightweight metal, that is a chemical element. It does not rust. Webster's New World Dictionary for Young Reader
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When are two definitions “the same”?
• The five definitions of aluminum on the previous
slide all are intensions of the same concept.
• Therefore, all five definitions are “the same” in
the sense that the set of (object) instances that
satisfy each definition (that is, the extensions of
the concepts) are the same.
• So, two definitions are the same if the set of
objects that satisfy each of them is the same.
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Minor changes to definitions
• A change in definition A to create definition B is
minor if A and B are intensions of the same
concept.
• It is difficult to give a complete specification of
minor changes, but such changes include:
– replacement of words by synonyms
– changes in grammar or sentence structure that do not change meaning.
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References require:
Word for
word copy
M
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c
no
Authoritative maybe
Reference
m
Normative
Reference
m
Qualified
Reference
GSC Associates
maybe