Hi Richard,
I have just tried to write the scope note without the deprecated
classes. I do not think the second paragraph pertains to implementation,
but clarifies what is not a number ontologically. It makes a statement
that some implementation may make a different impression about the
ontological nature. It is good practice to refer in a scope note to
things that are not meant by the class. Your comment about dates being
values just confirms me that this is an important clarification.
Even though it appears to some to be more elegant to have minimal scope
notes, many users do not appreciate that.
So, I suggest it stays...:-)
Best,
Martin
On 10/14/2019 1:11 PM, Richard Light wrote:
Mart
in,
Returning to your original point, I think the first paragraph of the
scope note for E60 is sufficient. I don't think that the second
paragraph adds explanatory value, and I suggest that it is removed.
This text is not concerned with implementation details, so we don't
need to discuss encoding of numbers here.
Best wishes,
Richard
On 11/10/2019 20:34, Martin Doerr wrote:
Hi Richard,
Sorry, should have been "NEW ISSUE".:-[
On 10/10/2019 10:32 PM, Richard Light wrote:
Martin,
Is this an official CRM Issue? I don't see an issue number, and a
search of the issues page for 'E60' yields only Issue 197, which was
resolved two years ago. Nor can I find any mention of this issue in
the recently-published minutes from the last SIG meeting.
I ask because I'm struggling to understand the context in which the
question has been raised, and your most recent answer.
Best wishes,
Richard
On 09/10/2019 19:28, Martin Doerr wrote:
Richard,
On 10/9/2019 6:34 PM, Richard Light wrote:
Martin,
I'm not sure I particularly like the phrase 'identifiers in
continua' - but maybe I just don't understand its intended
meaning. To me, a date is just a data value, expressed to a
certain degree of precision. An 'identifier' suggests something
which is deliberately assigned as a property of an entity, in
order to ... identify it.
A date is a numerical distance from a starting point, e.g. a zero
redefined every time the precision increases. A geocoordinate
refers to Greenwich, etc. Therefore they are NOT values, but
absolute points in space time. Not quantities.
In any case, if we are defining and giving examples of these
identifiers, shouldn't we be
Yes E41 need rewriting. I work on it. All examples from deprecated
classes need to be transferred.
Thank you!
Martin
Whatever these identifiers are, they won't be E50 or E47, both of
which are flagged as deprecated (and now to be treated as E41
Appellation).
Richard
On 08/10/2019 17:59, Martin Doerr wrote:
Dear All, we need to provide other definitions of identifiers in
continua.
E60 Number
Subclass of:E59 <#_E59_Primitive_Value> Primitive Value
Scope Note:This class comprises any encoding of computable
(algebraic) values such as integers, real numbers, complex
numbers, vectors, tensors etc., including intervals of these
values to express limited precision.
Numbers are fundamentally distinct from identifiers in continua,
such as instances of E50 Date and E47 Spatial Coordinate, even
though their encoding may be similar. Instances of E60 Number can
be combined with each other in algebraic operations to yield
other instances of E60 Number, e.g., 1+1=2. Identifiers in
continua may be combined with numbers expressing distances to
yield new identifiers, e.g., 1924-01-31 + 2 days = 1924-02-02.
Cf. E54 Dimension
Examples:
§5
§3+2i
§1.5e-04
§(0.5, - 0.7,88)
In First Order Logic:
E60(x) ⊃E59(x)
--
------------------------------------
Dr. Martin Doerr
Honorary Head of the
Center for Cultural Informatics
Information Systems Laboratory
Institute of Computer Science
Foundation for Research and Technology - Hellas (FORTH)
N.Plastira 100, Vassilika Vouton,
GR70013 Heraklion,Crete,Greece
Vox:+30(2810)391625
Email:[email protected]
Web-site:http://www.ics.forth.gr/isl
_______________________________________________
Crm-sig mailing list
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--
*Richard Light*
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
------------------------------------
Dr. Martin Doerr
Honorary Head of the
Center for Cultural Informatics
Information Systems Laboratory
Institute of Computer Science
Foundation for Research and Technology - Hellas (FORTH)
N.Plastira 100, Vassilika Vouton,
GR70013 Heraklion,Crete,Greece
Vox:+30(2810)391625
Email:[email protected]
Web-site:http://www.ics.forth.gr/isl
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
*Richard Light*
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
------------------------------------
Dr. Martin Doerr
Honorary Head of the
Center for Cultural Informatics
Information Systems Laboratory
Institute of Computer Science
Foundation for Research and Technology - Hellas (FORTH)
N.Plastira 100, Vassilika Vouton,
GR70013 Heraklion,Crete,Greece
Vox:+30(2810)391625
Email:[email protected]
Web-site:http://www.ics.forth.gr/isl
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
*Richard Light*
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
------------------------------------
Dr. Martin Doerr
Honorary Head of the
Center for Cultural Informatics
Information Systems Laboratory
Institute of Computer Science
Foundation for Research and Technology - Hellas (FORTH)
N.Plastira 100, Vassilika Vouton,
GR70013 Heraklion,Crete,Greece
Vox:+30(2810)391625
Email: [email protected]
Web-site: http://www.ics.forth.gr/isl
