On 22/6/09 23:16, Martin Hepp (UniBW) wrote:
Yves Raimond wrote:
Ontology modularization is
a pretty difficult task, and people use various heuristics for deciding what
to put in the subset being served for an element. There is no guarantee that
the fragment you get contains everything that you need.
There is no safe way of importing only parts of an ontology, unless you
know that its modularization is 100% reliable.
Serving fragments of likely relevant parts of an ontology for reducing
the network overhead is not the same as proper modularization of the
ontology.
Can you give a concrete example of the danger described here? ie. the
pair of a complete ("safe") ontology file and a non-safe subset, and an
explanation of the problems caused.
I can understand "there is no guarantee that the fragment you get
contains everything you need", and I also remind everyone that
dereferencing is a privilege not a right: sometimes the network won't
give you what you want, when you want it. But I've yet to hear of anyone
who has suffered due to term-oriented ontology fragment downloads. I
guess medical ontologies would be the natural place for horror stories?
cheers,
Dan
