Most likely, you've failed to properly embed quotes into your Strings. Double-quoted Strings and unquoted symbols are different data types in Jess, so that whereas the facts I showed in my example will work, the following
(assert (triple (predicate http://a.com/ontology#hasChild) (subject John) (object Mary))) will not. The only difference being the missing double quotes around that URL. Note that without the double quotes, the colon and the slashes are special characters, and will cause part of the URL to be interpreted as a regular expression! I think ahmad Sayed wrote: [Charset iso-8859-1 unsupported, filtering to ASCII...] > Hi again, > > Ok when I added this fact directly to the document myfamily.clp (where > there are the rules), and then I run it, it works! > > But I don't know why it's not working when i'm trying to add the fact from > my java appli. > > in java: > > Rete r = new Rete(); > String factstr = " (triple ( predicate...............) // all the fact > r.batch("myfamily.clp"); > Fact f = new Fact("myfact1", r); > f=r.assertString(factstr); > r.run(); > > it doesn't seem to add the fact to the rete, it doesn't take it into > account . > it gives me : > > run-single: > f-0 (MAIN::initial-fact) > For a total of 1 facts in module MAIN. > f-0 (MAIN::initial-fact) > For a total of 1 facts in module MAIN. > Jess reported an error in routine Jesp.parseFuncall. > Message: Unexpected EOF at token 'EOF'. > BUILD SUCCESSFUL (total time: 1 second) > > Where is the problem ??! > Thank u > > > > [EMAIL PROTECTED] wrote: > OAV triples. *Shudder.* > > Well, anyway, even at this level, there are various things you could > do with these. But let's take the very simple view that John is just a > symbol. After those rules are defined, the following code will deduce > that Mary is John's daughter: > > ;; John has a child Mary > (assert (triple (predicate "http://a.com/ontology#hasChild";) > (subject John) > (object Mary))) > > ;; Mary is a Woman > (assert (triple (predicate "http://www.w3.org/1999/02/22-rdf-syntax-ns#type";) > (subject Mary) > (object "http://a.com/ontology#Woman";))) > > ;; Run the rule engine; the rule will fire > (run) > > You can then use the "(facts)" function in Jess to check that the > hasDaughter fact has been asserted. > > > I think ahmad Sayed wrote: > [Charset iso-8859-1 unsupported, filtering to ASCII...] > > Hello, > > After transforming the SWRL from the ontologie to jess rules, I've obtained > > a rule list that looks like that : > > > > (defrule rule-6 > > > > (triple > > (predicate "http://a.com/ontology#hasChild";) > > (subject ?x) > > (object ?y) > > ) > > > > (triple > > (predicate "http://www.w3.org/1999/02/22-rdf-syntax-ns#type";) > > (subject ?y) > > (object "http://a.com/ontology#Woman";) > > ) > > > > => > > (assert > > (triple > > (predicate "http://a.com/ontology#hasDaughter";) > > (subject ?x) > > (object ?y) > > ) > > > > > > Well, now how can I describe in java the following fact : > > "John has a child , and the child is a woman " ??? > > > > so that when I run the rete engine it can tells me that john has a > > daughter... > > > > If someone can write me a sample code, i'd be very gratefull. > > thank u > > > > [EMAIL PROTECTED] wrote: > > I think ahmad Sayed wrote: > > [Charset iso-8859-1 unsupported, filtering to ASCII...] > > > Hi there, > > > > > > After building my OWL ontology with its SWRL rules, I've transformed this > > > knowledge base to jess in order to make some inferences over ontology > > > individuals. So now i've got my 2 files ontology.jess and ontology.clp > > > that I have to exploit them in a java application. However, I've hard > > > time using them. Could someone bring me just a simple code on how to > > > start over? (loading these files, parsing rules, and doing some simple > > > inferences ) > > > > > > My Knowledge base looked like that (in SWRL, before converting it to > > > jess) : > > > > > > SWRL rule-1: hasparent(?x, ?y) ^ hasbrother(?y,?z) -->hasuncle(?x,?z) > > > > > > I need to make inferences like : > > > hasparent(john,?y) ^ hasbrother (?y, michael) --> hasuncle (john, michael > > > ) > > > > > > How can I do that? > > > > > > > I don't know the SWRL syntax, specifically, but I'm assuming that this > > just says if someone has a parent, and the parent has a brother, that > > the brother is that someone's uncle. I don't know what you mean about > > your two files *.jess and *.clp; maybe one contains rules and the > > other contains facts? My answer to how you would "make these > > inferences" obviously depends strongly on what the rules and facts > > look like, but basically, you'd just assert facts that represented > > john, john's father, michael, and their known relationships, and run > > the engine. Presumably your rules would create new facts to represent > > their derived relationships, but again, that depends entirely on what > > you've got for rules. Then you might use a defquery to extract all the > > facts regarding john's relationships. > > > > > > > > > > --------------------------------------------------------- > > Ernest Friedman-Hill > > Advanced Software Research Phone: (925) 294-2154 > > Sandia National Labs FAX: (925) 294-2234 > > PO Box 969, MS 9012 [EMAIL PROTECTED] > > Livermore, CA 94550 http://herzberg.ca.sandia.gov > > > > -------------------------------------------------------------------- > > To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' > > in the BODY of a message to [EMAIL PROTECTED], NOT to the list > > (use your own address!) List problems? Notify [EMAIL PROTECTED] > > > > --------------------------------------------------------- > Ernest Friedman-Hill > Advanced Software Research Phone: (925) 294-2154 > Sandia National Labs FAX: (925) 294-2234 > PO Box 969, MS 9012 [EMAIL PROTECTED] > Livermore, CA 94550 http://herzberg.ca.sandia.gov > > -------------------------------------------------------------------- > To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' > in the BODY of a message to [EMAIL PROTECTED], NOT to the list > (use your own address!) List problems? 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