[kepler-dev] Duplications of actors when searching the actor tree
sbowers at ucdavis.edu
Thu Aug 18 20:33:11 PDT 2005
Yes, now that you mention this problem I remember that the GIS one was a
bit strange (perhaps a distributed ontology editing problem ... i.e.,
someone at one time added a concept and called it GIS which is the same
name as another concept). I actually "fixed up" the actor ontology as a
test case, and it can be found under the ontology directory in kepler
The labels are what are shown in the browser, the id's are for "internal"
I think we should actually match on label and not on id ... and save id
for a "real" identifier, e.g., with no implied assumption that the id is a
meaningful name. Another approach would be to introduce an owl annotation
property called something like "displayName". But, I think that is pretty
much what "label" is for. Of course, we would need to require labels for
searching/browsing -- but I think that is okay.
On another note, we are about to change the entire way that the actor
search via semantic types is coded (to leverage the object manager). If
folks have suggestions on improvements, new features, things you'd like to
see, your comments would be very much appreciated!
On Thu, 18 Aug 2005, Jianting Zhang wrote:
> Ok, here is what I found:
> If I change the value of <rdfs:label> with the value of rdf:ID in
> "<owl:Class>", then the searching works as expected. More specifically,
> actors that have multiple roles appear multiple times and actors that have
> single role appear just once.
> By changing the value of <rdfs:label> to the value of rdf:ID, it becomes
> unique. I guess the problem happened because "GIS" was used at the labels
> for multiple concepts. I suspect matching based on rdf:ID instead of
> rdfs:label will solve the problem.
> Thanks for helping
> -----Original Message-----
> From: Shawn Bowers [mailto:sbowers at ucdavis.edu]
> Sent: Thursday, August 18, 2005 6:03 PM
> To: Jianting Zhang
> Cc: kepler-dev at ecoinformatics.org
> Subject: Re: [kepler-dev] Duplications of actors when searching the actor
> I have no idea, you'll have to ask the ontology creator ;)
> Jianting Zhang wrote:
> > I understand an actor can be classified under multiple concepts, say a GIS
> > actor and an output actor. But an output GIS actor can not be an input GIS
> > actor. Am I wrong here?
> > -----Original Message-----
> > From: Shawn Bowers [mailto:sbowers at ucdavis.edu]
> > Sent: Thursday, August 18, 2005 5:55 PM
> > To: Jianting Zhang
> > Cc: kepler-dev at ecoinformatics.org
> > Subject: Re: [kepler-dev] Duplications of actors when searching the actor
> > tree
> > It's not a bug, it's a feature. An actor can be classified under
> > multiple concepts ... It might be a bug in the ontology, e.g., it may
> > not be the case that all GIS actors are both external input actors and
> > output actors. But this is definately a feature of the actor searching
> > -- supporting mutliple conceptual access paths to the same actor.
> > -shawn
> > Jianting Zhang wrote:
> >>I recently added a few GIS data display actors to the actor tree
> >>(locally). It works normally when browsing the actor tree. However, when
> >>I search "GIS", these three actors appear in both inputs/external/GIS
> >>and outputs/GIS and so do a few other GIS actors (such as GDAL wrap and
> >>projection, Grass Export). Is this possibly a bug in actor searching?
> >>Kepler-dev mailing list
> >>Kepler-dev at ecoinformatics.org
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