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CS 6795 Semantic Web Techniques |
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Project
3: Translating Between Subsets of RuleML and Jess |
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Update (part of) the
RuleML 0.7 "Animals Knowledge Base" (http://www.dfki.uni-kl.de/ruleml/jess/rules1.xml
) to conform to the current version of Datalog RuleML 0.8, but also allow a _priority role in an imp, as illustrated by the rulebase below. This will
serve you as a test base. Adapt the j-DREW RuleML parser to handle the roles _rbaselab, _rlab, and _priority, initially by ignoring their contents. Then read
in your AnimalsKB and run queries in j-DREW (bottom-up). Download the Jess
rule engine and scripting environment (http://herzberg.ca.sandia.gov/jess/
). Consider the (small) subset of Jess corresponding to the Datalog RuleML
subset needed for your AnimalsKB. Basically, the _head
atom of a RuleML imp becomes an assert action in Jess. Apply the XSLT
stylesheet http://www.dfki.uni-kl.de/ruleml/jess/RuleMLTransform.xsl to the original RuleML 0.7
"Animals Knowledge Base". Then modify it for your RuleML 0.8
AnimalsKB to produce the above Jess subset. Run your translated example in
the Jess engine. Document your problems and solutions in this experiment. <rulebase>
<_rbaselab><ind>AnimalsKB</ind></_rbaselab> <fact>
<_rlab><ind>fact1</ind></_rlab> <_head> <atom> <_opr>
<rel>has</rel>
</_opr>
<ind>Stretch</ind>
<ind>hair</ind> </atom> </_head> </fact> <imp>
<_rlab><ind>AnimalsRule1</ind></_rlab>
<_priority><ind>10</ind></_priority>
<_head> <atom>
<_opr>
<rel>isa</rel>
</_opr>
<var>x</var>
<ind>mammal</ind> </atom> </_head> <_body> <atom>
<_opr>
<rel>has</rel> </_opr>
<var>x</var>
<ind>hair</ind> </atom> </_body> </imp> </rulebase> |
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Maintained by Bruce Spencer