Hi Claudia,
such effects may happen when (OWL RL) inferences are executed over a
graph containing SPIN RDF syntax triples. When you interrupt the
inferencing process, it will not have cleaned up the "trivial"
inferences and thus you may end up with triples that mess up the SPIN
RDF syntax. Resetting the inferences should fix this, but better: don't
interrupt the process.
If you want to 100% avoid complications due to the SPIN RDF syntax,
switch to SPIN text syntax using sp:text. The Model menu has items to
convert to the text-only format (in which SPIN queries are not
represented as triples), and there is a TopBraid Composer preference
under "SPIN" to always use sp:text.
HTH
Holger
On 1/24/15, 2:31 AM, Claudia Grieco wrote:
Hi to all,
I'm currently using TopBraid Composer Free Edition
Version: 4.5.0
I have noticed a strange behaviour: wherever I launch an inference on
a file, and then I interrupt (Cancel) the inference process for some
reason, Top Braid rewrites my rule file adding variables at random to
function called in rules.
For example the following spin:rule:
*INSERT {*
* ?previousPerson tracking:blobMatch ?this .*
**
*}*
*WHERE {*
* ?previousPerson a foaf:Person .*
* ?previousPerson tracking:blobMatch ?b2 .*
*[....]*
* FILTER (((spin:myfunction(?b2, ?this) &&
spin:hasHumanSize(?this)) && (?dist <= 45)) && (?dist =
spin:getMinHumanDistance(?b2, ?this))) .*
* .*
*}*
becomes:
*INSERT {*
* ?previousPerson tracking:blobMatch ?this .*
**
*}*
*WHERE {*
* ?previousPerson a foaf:Person .*
* ?previousPerson tracking:blobMatch ?b2 .*
*[....]**
*
* FILTER (((spin:myfunction(?b2, ?this) && spin:hasHumanSize(?this,
?this)) && (?dist <= 45)) && (?dist = spin:getMinHumanDistance(?b2,
?this, ?b2))) .*
* .*
*}*
*
*
Sometimes it also changes the order of variables in my fuction
declaration...
What could be the problem?
Note: I'm currently storing rules in rdf format instead of ttl, is it
an issue?
Thanks a lot
Claudia
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