Comments (6)
Hello, I don't know this "eval" builtin function.
It doesn't look standard :
https://www.w3.org/Submission/SWRL/#8
http://dior.ics.muni.cz/~makub/owl/#swrlpredicates
Where does it come from ?
You can find some example of swrl with openllet here :
with standards builtin :
https://github.com/Galigator/openllet/blob/integration/module-owlapi/src/test/java/openllet/pellet/owlapi/test/TestBasic.java#L463
https://github.com/Galigator/openllet/blob/integration/module-owlapi/src/test/java/openllet/pellet/owlapi/test/TestBasic.java#L506
with user define builtin :
https://github.com/Galigator/openllet/blob/integration/module-owlapi/src/test/java/openllet/pellet/owlapi/test/TestBasic.java#L583
You can also take a look here for a complete list of already implemented builtins.
https://github.com/Galigator/openllet/blob/integration/tests/src/test/java/openllet/test/rules/SWRLBuiltIns.java (but there is no 'eval' function to be implemented).
Files in the same directory may enlighten you.
Also be careful with Jena, it is only 'OWL1', you may have surprises.
from openllet.
My bad, you are using : https://github.com/protegeproject/swrlapi/wiki/SQWRL not SWRL.
SQWRL isn't support by Openllet. Maybe we could implement a bridge to SQWRL using the user define SWRL in Openllet. Also It would kill the the 'explenation' feature, that allow user to understand what's going on when inconsistency appear.
from openllet.
no, I am using swrl to define the rules.
this is the link to the builtins https://github.com/protegeproject/swrlapi/wiki/MathematicalBuiltInLibrary
from openllet.
swrlm:eval(?r, "(57 * x) / y)", ?x, ?y)" is an SQWRL construct not an SWRL construct.
By reading https://github.com/protegeproject/swrlapi/wiki/SQWRL, I understand that binding SQWRL to Openllet could be an interesting 3 years phd research project.
from openllet.
Thanks for the clarification. is there any guides for creating custom built-ins for openllet. And for the Jena that it only support OWL1. do you have any alternatives that I can use? I am currently using the Fuseki server to query my ontology over HTTP using sparql from mobile apps.
from openllet.
There is no guides for creating custom built-ins for openllet, but there is one example :
https://github.com/Galigator/openllet/blob/integration/module-owlapi/src/test/java/openllet/pellet/owlapi/test/TestBasic.java#L744
A replacement for Jena, could be the OWL-API, but it doesn't come with fuseki like tool, instead it use RIO/rdf4j like tools.
from openllet.
Related Issues (20)
- Openllet: UnsupportedClassVersionError HOT 4
- Inconsistent results for EL and DL ontologies. HOT 2
- Clearify the relation to Pellet HOT 3
- Build Error (maven on debian10) HOT 2
- ArrayIndexOutOfBoundsException when using minQualifiedCardinality
- class file has wrong version 54.0, should be 52.0 HOT 2
- getInstances for Class Expressions using Complement doesn't work correctly HOT 2
- invalid explanations with owlapi HOT 3
- Reasoner `.bindSchema` doesn't work HOT 1
- USE_UNIQUE_NAME_ASSUMPTION = true leads to contradictions HOT 1
- DL query is NULL for Openllet reasoner
- Openllet-Jena 2.6.5 is conflicting with Apache Jena Libs > 3.15.0 ( java.lang.NoSuchFieldError: SHACLC) HOT 2
- Unsupported rule Rule HOT 2
- replace travis-ci.org with different ci service HOT 2
- The command line interface shound be documented
- [ERROR] Failed to execute goal org.apache.felix:maven-bundle-plugin:4.1.0:bundle HOT 1
- Broken Logging
- Jena API Performance Problems HOT 2
- Wrong DisjointClass(A,B) inferred if the ontology includes a Subclass(A, ObjectComplementOf(B)) HOT 2
- Do not work in Protege5.1.0 HOT 2
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from openllet.