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This is not the final story, but you may find some food for thought here
On Tue, Sep 3, 2019 at 2:18 PM R Ilin <rili...@gmail.com> wrote:
Hello,--I am new to BFO and was wondering if I could get some recommendations. Does BFO allow the use of uncertain relations? For example, I see an animal and I am not sure if that is a duck or a goose. Could I say something like "This animal may-be a duck"? Is there a conventional way of handling this situation?Thanks,Roman.
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Dear Roman and all
Interesting discussion so far!
It sounds as if the "real" entity in question is not the bird, but the detection process, that has certain participants (a computer and a bird) and a certain output ... IAO and OBI could be of help to integrate this into a BFO framework (the Information Artifact Ontology and the Ontology for Biomedical Investigations, that is).
Best
Ludger
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-- PD Dr. Ludger Jansen Institut für Philosophie Universität Rostock D-18051 Rostock
I suppose this depends upon the purpose of Basic Formal Ontology. From https://basic-formal-ontology.org/:
“The Basic Formal Ontology (BFO) is a small, upper level ontology that is designed for use in supporting information retrieval, analysis and integration in scientific and other domains.”
This statement does not capture the ontological realism undertones of BFO. From https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3104413/ (see Section 1 – “The methodology of ontological realism”, Subsection 1.1 – “The goal of ontology development”)
“Ontologies are created to serve multiple goals, including support for more effective retrieval of data and for different sorts of reasoning. Here we focus on ontologies created to foster consistency in the ways scientific results are described for purposes of more effective integration of scientific data – ontologies, therefore, that serve strategies to counteract the many tendencies leading to ad hoc and non-interoperable coding of data, and thus to the formation of data silos… The realist methodology is based on the idea that the most effective way to ensure mutual consistency of ontologies over time and to ensure that ontologies are maintained in such a way as to keep pace with advances in empirical research is to view ontologies as representations of the reality that is described by science. This is the fundamental principle of ontological realism.”
The second excerpt paints a more thorough picture of BFO’s purpose. If one views BFO’s goal only in terms of the first excerpt, then I believe this is a disservice to Basic Formal Ontology, reducing its OWL and FOL representations and those of its derivative OWL and FOL representations to a hodge-podge of defined classes.
I believe that allowing defined classes in a realist ontology representation detracts from the empirically-driven foundation of precise & concise ontological representations of “things” that exist in realty. One can easily create set theoretic structures in OWL and FOL that are entirely accurate from a FOL viewpoint but are otherwise absurd in that they have no bearing on reality. For this reason, I question “ontology” definitions such as the following:
“ontology = def. a representational artifact, comprising a taxonomy as proper part whose representations are intended to designate some combination of universals, defined classes, and certain relations between them” (see http://marte.aslab.upm.es/redmine/files/dmsf/p_oasys/170119123026_238_Arp_-_Building_Ontologies_with_Basic_Formal_Ontology.pdf, Section 1 – “What Is an Ontology?”, Subsection – “Introduction”, Paragraph 2).
This definition comingles universals with defined classes.
In summary, as stated at the top of this post, if you accept BFO in this light, then, yes, the defined class “(duck or goose)”, itself subsumed by “animal”, which in turn presumably is subsumed by BFO’s “Object”, is a perfectly logical construct. However, one can just as easily assert the following logical construct as a subtype of BFO’s “Object” universal:
(duck or goose or doorknob or hammer)
By not imposing (a) a rigid empirical and scientific view of reality within the current realm of human knowledge and (b) a monohierchical view of taxonomy, we can create a plethora of information silos fueled by arbitrary defined classes.
With a realist view of ontology, a “duck” universal (a.k.a., type) is clearly defined by science, as are “goose”, “doorknob” and “hammer” universals. The inability to determine what something is at some point in time, as may be the case when one sees an object at a distance in the desert at twelve noon through the distorted haze of an atmospheric disturbance, is irrelevant to ontological realism and should not inform ontology development. “Duck”, “goose”, “doorknob” and “hammer” universals are mutually exclusive. There is no such “thing” in reality, for instance, as a “(duck or goose)”.
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