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diversicon-kb / diversicon-core

A knowledge base for lexicons and concepts, based on UBY
http://diversicon-kb.eu/tools
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Transitive closure is not computed for instances #32

Closed DavidLeoni closed 7 years ago

DavidLeoni commented 7 years ago

Currently transitive closure is computed only for transitive relations, one relation at a time. This means that in transitive relations like hypernym which have special relations for leaves like instanceHypernym, the instances are not linked to the chain of parents.

For our purposes, this may be particularly problematic for calculations regarding domains.

gbella commented 7 years ago

I think this behaviour is perfectly fine both scientifically and in practice.

As long as we have the transitive closure on superdomains, the user can always implement the check very easily: if (synset hasDomain D) and (D hasSuperDomain SD) then...

On 30 December 2016 at 16:22, David Leoni notifications@github.com wrote:

Currently transitive closure is computed only for transitive relations, one relation at a time. This means that in transitive relations like hypernym which have special relations for leaves like instanceHypernym, the instances are not linked to the chain of parents.

For our purposes, this may be particularly problematic for calculations regarding domains.

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DavidLeoni commented 7 years ago

Yes right, basically applications using Diversicon would need to be a little smarter and on Diversicon side we would save a lot of memory in extra edges, especially for entities. Closing this.