Mapping EuroWordnet Top Ontology into Between Upper Cyc Ontology
The mapping is expressed in terms
of a CycL microtheory encoding of the EuroWordNet Top Ontology on top of
the publicly available part of the Cyc knowledge base. This approach was
chosen because such a mapping just by means of equivalence and subsumption
relations is impossible. However we provide also a simplified relational
view that is sufficient for many purposes. More details could be found
in [KiryakovSimov2000b].
The MS Access
Database that is distributed is an extension of the "Upper
Cyc Ontology as MS Access Database" (see above). The most straightforward
way of use is to open the "EWN to Cyc" form. Actually, it is being opened
automatically when the database is opened. Using this form the user can
walk trough the EWN top concept. For each concept the following information
could be seen and modified:
gloss of the EWN top concept
the list of EWN base concept associated to it
the list of Cyc constants related to
this EWN constant, together with a comment for the kind of relation that
takes place
the gloss of the currently selected Cyc concept
the type of mapping of the EWN concept
into Cyc (exact, difference, gap, qualia).
the CycL definitions that constitute
the top concept as an extension of the Upper Cyc Ontology
there is possibility to specify some
meta properties following Guarino and Welty's classification.