On 22/05/13 15:11, atkaaz wrote:
Would you say that ontologies can be modeled on top of graphs? so in a way they can be seen as a specific use case for graphs? (maybe directed acyclic graphs), that's what I am getting the sense of so far

I am certainly not an ontology guru but I can confirm that what you describe is sort of valid...Ontologies will indeed help you find predicate-argument structures of the form subject->predicate->object (i.e "John likes pizza"), but in order to do that you have to build the domain-specific ontology first! But there is another way to get the same information via deep-parsing. A syntactic parser like stanford's or enju will give you back the nodes (tokens) and their dependencies (relations). You can shove that into a (directed & acyclic) graph structure and you're ready to query/navigate it as you like...

Jim

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