Re: Semantic Heterogeneity and Ontology

Thanks Tom. I will look into that.

"Tom Hester" <$$tom_at_metadata.com> wrote in message news:<54f43$40719752$45033832$8671_at_msgid.meganewsservers.com>...
> The ontology management work that I am familiar with is going on outside the
> database field, in the semantic web domain. However, researchers in that
> field admit that the problem is a database problem. To get a link into this
> work do a google search on OWL, DAML and DAML+OIL, as well as semantic web,
> ontology, etc. Much of this work is based on Cyc and its ontology
> management. So, look for Cyc too.
>
> "researcher" <a_thesis_at_yahoo.com> wrote in message
> news:31acb67d.0404040556.3d47aed1_at_posting.google.com...
> > Hi,
> >
> > I would like to know if there are any well known patterns or industry
> > efforts to solve semantic heterogeneity.
> >
> > Example from Prof. Amit Sheth Paper:
> > Consider an attribute MEAL_COST
> > of relation RESTAURANT in database DB1 that describes the average cost
> > of a meal per person in the restaurant without service charge or tax.
> > Consider attribute by the same name (MEAL_COST) of relation BOARDING
> > in database DB2 that describes the average cost of a meal per person
> > including service charge and tax. Let both the attributes have the
> > same syntactic properties. Attempting to compare attributes
> > DB1.RESTAURANT.MEAL_COST and DB2.BOARDING.MEAL_COST is misleading
> > because they are semantically heterogeneous.
> >
> > I know there are several individual research efforts. I would also
> > appreciate if any senior researchers could point me to some serious
> > ontology management development efforts.
> >
> > Thanks in Advance.
> >
> > -researcher
Received on Wed Apr 07 2004 - 00:17:08 CEST