[topicmapmail] Thinking aloud about the application of set theory

[W.M. Jaworski]

Quick, quick!
What are pa1, va1, va2, ua3 ?

TIA

WMJ

-----Original Message-----
From: topicmapmail-admin@infoloom.com
[mailto:topicmapmail-admin@infoloom.com]On Behalf Of Martin Bryan
Sent: Wednesday, May 02, 2001 3:23 AM
To: mb@infoloom.com; Steven R. Newcomb; topicmapmail@infoloom.com
Subject: [topicmapmail] Thinking aloud about the application of set
theory


Just been wondering whether set theory could be applied to topic maps. (Not
that I am a mathematician!). Here is a summary of my ramblings.

If we distinguish between predefined associations (pa) such as basename,
sortname, etc, and variable associations (va) such as those created by types
of occurrences, and user-defined associations (ua), such as those created by
association elements, then we end up with something like:

[t1  pa1  n1  s1
 t1  va1   o1  s1
 t1  va2   o2  s2
 t1  ua3   t2   s1]

and

[t2  pa1  n2  s1
 t2  va1   o3  s1
 t2  va2   o2  s2
 t2  ua3   t1   s1]

where t = topic, n=name, o=occurrence and s=scope. Can we then apply set
theory to query the set to create subsets that conform to particular scopes,
topics or associations?

Martin Bryan

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