It is a mistake to have ethanol both subclass and instance of chemical compound.
if chemical compound is a class, then it cannot be a metaclass. 2014-10-05 18:49 GMT+02:00 Emw <[email protected]>: > Hi David, > > How does your treatise relate to the fact that > https://www.wikidata.org/wiki/Q153 has statements that entail the > following? [1] > > ethanol > *instance of* chemical compound > *subclass of* chemical compound > > How would it resolve that specific problem? > > Such statements make Wikidata incompatible with ChEBI and other major > ontologies, like Gene Ontology and Disease Ontology, which use *instance > of* (i.e. rdf:type, P31) and *subclass of* (i.e. rdfs:subClassOf, P279, > is_a) as recommended in the Relation Ontology (RO) [2] and the Basic Formal > Ontology (BFO). > > For Wikidata to be interoperable with other major ontologies in the > Semantic Web, we cannot "scrap everything and start again from the > beginning". We must stand on the shoulders of giants. Doing away with > "entity" [3] as a the top of the *subclass of* hierarchy and introducing > a raft of idiosyncratic ontological constructs like "identifiables", > "cognizables", "negentropy" and "system survival-oriented direction" to > Wikidata is probably not the way to go. > > Regarding your concerns about the ability of existing approaches to > represent emergent properties and natural language, I recommend perusing > [4], an influential paper that informs DOLCE and BFO -- particularly the > section on "The Role of Identity Criteria". I also highly recommend > lectures 3 and 1 in > http://ontology.buffalo.edu/smith/IntroOntology_Course.html for gaining a > perspective on how BFO maintainers think about things like distinguishing > objects and representations, and that upper ontology's philosophical > roots. Given your interest in phenomenology and Husserl, you may also be > interested in what BFO maintainers have written on those subjects in e.g. > [5] with regard to ontology. > > Best, > Eric > > [1] https://www.wikidata.org/wiki/Q153 currently states "ethanol *subclass > of* alcohol", but given "alcohol *subclass of* organic compound" and > "organic compound *subclass of* chemical compound", it is entailed that > "ethanol *subclass of* chemical compound". > [2] Barry Smith et al. (2005). *Relations in Biomedical Ontologies*. > http://genomebiology.com/2005/6/5/r46 > [3] "Entity" item on Wikidata. https://www.wikidata.org/wiki/Q35120. > Mapped to owl:Thing. > [4] Nicola Guarino (1998). *Some Ontological Principles for Designing > Upper Level Lexical Resources*. http://arxiv.org/pdf/cmp-lg/9809002v1 > [5] Barry Smith (1989). *Husserl: Logic and Formal Ontology*. > http://ontology.buffalo.edu/smith/articles/lfo.html > > _______________________________________________ > Wikidata-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata-l > >
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