Hi Achille,
That is basically no problem. It can quite easily be formulated in FOL
that at least one of the Units must be an A2, and it should be in the
scope note. Anyway, lack of knowledge may require that the necessary A2
is not documented. In that case, the FOL can make sure that one can
infer such lack of knowledge.
More generally, as Nicola Guarino has written in his foundational paper,
formal ontologies try to minimize unintended applications, but cannot
completely exclude them.
All the best,
Martin
On 3/26/2021 10:23 PM, Achille Felicetti wrote:
Dear Martin, Christian-Emil,
Thank you for the interesting insights. For the scenario described by
Martin I fully agree with what he writes and surely it makes sense to
consider an embedding as distributed among different layers in the
very common case in which it spans over multiple and stratigraphic
strata of different kind (A2 + A3).
However, the problem that I see is formal, since changing the range of
AP19 would allow the definition of triples like the following:
(X is-a A7 embedding) —> AP19 is embedding in —> (Y is-a A3
Stratigraphic Interface)
that will become formally correct from the point of view of the model,
but conceptually disputable in my opinion.
I can't think of a solution that accommodates everything.
Best,
A.
Il giorno 26 mar 2021, alle ore 19:35, Martin Doerr via Crm-sig
<[email protected] <mailto:[email protected]>> ha scritto:
Dear Christian-Emil, Achille,
When talking about embeddings, I am not so much thinking of an
isolated item, but things like the Talheim Death Pit with thousands
of bones, where each exact position is vital for the assignment to
complete corpses.
I am also thinking of a thing embedded by multiple layers. First the
lower half, then the upper half. Should somehow be consistent with
the physical relations. The first would provide the chronology when
the deposition started.
We can think of sets of Amphorae, upright metal objects or so, tall
enough to be embedded by multiple layers.
This would justify embedding in A8, and A3 interfaces taking part in
the embedding, just as considering intersections of A3 Interfaces as
physical relations.
Best,
Martin
On 3/26/2021 4:49 PM, Christian-Emil Smith Ore via Crm-sig wrote:
You are quite correct, it would be a 2-dimentional embedding. In the
2D world a pencil stroke is a unpassable hindrance.
On the other hand AP 9 is not a total property. And also not all
persons can give birth at least not now.
C-E
------------------------------------------------------------------------
*From:* Achille Felicetti <[email protected]>
*Sent:* 26 March 2021 11:30
*To:* Christian-Emil Smith Ore
*Cc:* crm-sig
*Subject:* Re: [Crm-sig] CRMarcheo -embedding
Dear Christian-Emil,
I understand the practical need of this operation, but I also fear
that this may cause further conceptual inconsistencies since, I
imagine, in no way an embedding can be embedded in an A3 as the
latter is a feature.
I think it would be more fruitful to apply a constrain on the use of
A2 in case an A7 is instantiated … Is this reasonable?
Best,
A.
Il giorno 26 mar 2021, alle ore 09:27, Christian-Emil Smith Ore via
Crm-sig <[email protected] <mailto:[email protected]>> ha
scritto:
Dear all,
In issue 447 the SIG has decided to make A7 Embedding a subclass
of S20. Ok.
In many excavations archaeologists record structures without
specifying layer (A2) versus surface (A3). Therefore such
documented things can only be modelled as instances of the A8, the
superclass of A2 and A3.
Currently
* AP19 is embedding in (contains embedding) [[D: A7 Embedding; R:
A2 Stratigraphic Volume Unit]
To be able to document an embedding in the documentation described
above, it would be beneficial to lift the range of AP19 to A8
Archeological Unit:
AP19 is embedding in (contains embedding) [[D: A7 Embedding; R: A8
A8 Archeological Unit]
Comments?
Best,
Christian-Emil
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------------------------------------
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
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--
------------------------------------
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
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