Le 2013-05-07 14:01, emw a écrit :
"Yes, there is and should be more than one "ontology", and that is already the case with categories, which are so flexible they can loop around and become their own grandfather."
Can someone give an example of where it would be useful to have a cycle in an ontology? To my knowledge cycles are considered a problem in categorization, and would be a problem in a large-scaled ontology-based classification system as well. My impression has been that Wikidata's ontology would be a directed acyclic graph (DAG) with a single root at entity [6] (thing).
Well, to stay on my idea of building an ontology from the "perception" concept, from perception you can spawn awarness (perceive that you perceive), from what you can span definition, from what you can define perception. Ok I'm lean on the details here and you probably need more concepts and relations to go from perception to definition, but you get the idea. Moreover I already gave an example with cross-ontology relations.
What would be the motivation of using a graph as you describe? Is there particural purpose for such a choice?
On Tue, May 7, 2013 at 3:03 AM, Mathieu Stumpf psychoslave@culture-libre.org wrote:
Le 2013-05-06 18:13, Jane Darnell a écrit :
Yes, there is and should be more than one "ontology", and that is already the case with categories, which are so flexible they can loop around and become their own grandfather.
To my mind, categories indeed feet better how we think. I'm not sure "grandfather" is a canonical term in such a graph, I think it's simply a cycle[1].
[1] https://en.wikipedia.org/wiki/Cycle_%28graph_theory%29 [5]
Dbpedia complaints should be discussed on that list, I am not a dbpedia user, though I think it's a useful project to have around.
Sorry I didn't want to make off topic messages, nor sound complaining. I just wanted to give my feedback, hopefuly a constructive one, on a message posted on this list. I transfered my message to dbpedia mailing list.
Links:
[1] http://mappings.dbpedia.org/ [2] http://mappings.dbpedia.org/server/ontology/classes/ [3] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion [4] https://lists.wikimedia.org/mailman/listinfo/wikidata-l [5] https://en.wikipedia.org/wiki/Cycle_%28graph_theory%29 [6] http://www.wikidata.org/wiki/Q35120
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