Jason --
As Gerd said, a good way to do what you want (below) is with rules.
Here's one way to do this
- some-person does research into some-subject
- that-subject is a sub topic of some-topic
- -------------------------------------------
- that-person does research into that-topic
- some-subject is a sub topic of some-subject1
- that-subject1 is a sub topic of some-topic
- --------------------------------------------
- that-subject is a sub topic of that-topic
- this-item is a sub topic of this-topic
- =========================================
- Data
Mining
Knowledge Discovery
- Text
Mining
Knowledge Discovery
- Knowledge Discovery Semantic Web
- this-person does research into this-topic
- ==============================================
- Adrian
Knowledge Discovery
- Bob
Data Mining
- Claire
Text Mining
You can run this example, and get explanations of the results, by
pointing a browser to
www.reengineeringllc.com.
(Shared public use of the system is free.)
Click on ''Internet Business Logic'', then on the GO button, and select
the example OwlResearchOnt . Then use the Help buttons to navigate
further.
HTH,
-- Adrian
Adrian Walker
Reengineering
PO Box 1412
Bristol
CT 06011-1412 USA
Phone: USA 860 583 9677
Cell: USA 860 830 2085
Fax: USA 860 314 1029
At 06:11 AM 10/5/2005 +0000, you wrote:
Hey,
I got a problem when writing the OWL based ontology. But I do not
find
how to solve it. I may need your help.
The problem is that:
I want to define tow class, For instance: owl:class Topic and
owl:class Researcher,
There are three instances of the Topic class, namely
knowledgeDiscovery, dataMining, and textMining. Three instance of
the
Research class, namely A, B, and C.
DataMining and textMining are subtopic of knowledgeDiscovery. A
workIn
knowledge discovery, B workIn dataMining, and C workIn textMining.
Now, I have a query "SELECT ?Researcher WHERE ?Research workIn
knowledgeDiscovery", I hope the three tuples will be extracted.
They
are "A workIn knowledgeDiscovery", "B workIn
knowledgDiscovery", and
"C workIn knowledgeDiscovery".
The subtopic relation is similar to the rdfs:subClassOf. However,
it
works on the instances only. How can i define the subtopic relation
using the OWL so that i can get the above results.
Thanks for your reply.
regards
Jason
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