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[protege-owl] sorry but this is a repeated post...

Kamaljit Kaur Bimrah (Staff Acc) K.K.Bimrah at uel.ac.uk
Fri Aug 10 04:26:03 PDT 2007


Hello,

I cant get OWLViz to work.  I have tried and its not working.  I know the tab
is on there, but it doenst allow me to add anything...pls help and guide...

Another thing I am using the OWL language...but how do I implement that in
the tool? Or is it that when I add a concept, there is a OWL statement added
automatically for that?  I just dont understand how the language is used in
this...

Sorry if these seem very basic questions...im stuck!

Thanks!
Kam 
 
p.s. sorry for repeating...

________________________________

From: protege-owl-bounces at mailman.stanford.edu on behalf of
protege-owl-request at mailman.stanford.edu
Sent: Fri 10/08/2007 12:00
To: protege-owl at mailman.stanford.edu
Subject: protege-owl Digest, Vol 13, Issue 28



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Today's Topics:

   1. equivalent Class handling in JESS Bridge while    exporting
      (Hrishikesh Sharma)


----------------------------------------------------------------------

Message: 1
Date: Fri, 10 Aug 2007 16:30:52 +0530
From: "Hrishikesh Sharma" <hrishikesh.sharma at gmail.com>
Subject: [protege-owl] equivalent Class handling in JESS Bridge while
        exporting
To: "User support for the Protege-OWL editor"
        <protege-owl at lists.stanford.edu>
Message-ID:
        <48e231150708100400l53da202do9ce8dfd2bbbe65fb at mail.gmail.com>
Content-Type: text/plain; charset="iso-2022-jp"

Hi,
      In the ontology 1.owl attached, I have declared

<owl:Class rdf:ID="DailyWorkPlan">
   <owl:equivalentClass>
     <owl:Class rdf:ID="WorkItems"/>
   </owl:equivalentClass>
 </owl:Class>

 <owl:ObjectProperty rdf:ID="hasWorkPlan">
   <rdfs:range rdf:resource="#WorkItems"/>
   <rdfs:domain rdf:resource="#Employee"/>
 </owl:ObjectProperty>

While my SWRL rule(number 2) is something like this:

Employee(?a)  ?
hasWorkPlan(?a, ?b)  ?
hasTravelBooking(?b, true)  ?
hasBookingDetails(?a, ?c)  ?
travelReqd(?c, true)  ?
bookingReqd(?c, true)  ?
hasApproxStart(?c, ?d)  ?
hasApproxEnd(?c, ?e)  ?
Time(currTime)  ?
hasTimeValue(currTime, ?g)  ?
swrlb:greaterThan(?g, ?d)  ?
swrlb:greaterThan(?e, ?g)
? isEmployeeMoving(?a, true)

When I try to export knowledge towards JESS using JessTab by pressing the
appropriate button, I get the following error:

at
edu.stanford.smi.protegex.owl.swrl.bridge.SWRLRuleEngineBridge.exportOWLClass
(Unknown
Source)

When I change the OWL specification(while keeping the rule specification
intact) as below by removing DailyWorkPlan Class, and as in 2.owl, the
export works happily.
<owl:Class rdf:ID="WorkItems" />

<owl:ObjectProperty rdf:ID="hasWorkPlan">
   <rdfs:range rdf:resource="#WorkItems"/>
   <rdfs:domain rdf:resource="#Employee"/>
 </owl:ObjectProperty>

What may be the problem with SWRL Jess Bridge of Protege here?

Regards
      Hrishikesh.
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