Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Hi,Thank you Ernest for your help, it worked. (MAIN::object (is-a A) (OBJECT ?ab) (ID $?b 111 $?a))However, when I use the variable $?a in the RHS, it gives me a error message stating that, no such variable a. I was stuck up with one more bug. Why does a slot-set in RHS of a rule creates an infinite loop? (defrule match (MAIN::object (is-a A) (OBJECT ?ab) (ID $?b 111 $?a)) (MAIN::object (is-a B) (OBJECT ?bb)(listofA $? ?ab $?)) (MAIN::object (is-a C) (OBJECT ?cc)(listofB $? ?bb $?)) =(slot-set ?cc Name John))The above rule updates the slot Name infinitely. Does the update fires the rule again? If so how do i update a slot value inside the rule? Thanx for any help in adv.JFCOn 7/9/06, friedman_hill ernest j [EMAIL PROTECTED] wrote:I think John wrote: However, (defrule match (MAIN::object (is-a A) (OBJECT ?ab) (ID $?b 111 $?a)) (MAIN::object (is-a B) (OBJECT ?bb)(listofA $?before ?ab $?after)) (MAIN::object (is-a C) (OBJECT ?cc)(listofB $?before ?bb $?after)) =) the above rule never activates. The rule on Class C never returns true.My guess is that this is because you've used the same named variablesbefore and after in both patterns; this is telling Jess that the before and after parts of the multislots should be the same in bothfacts, which I don't think is what you intend.Instead of using named variables, use blank variables -- i.e., (MAIN::object (is-a B) (OBJECT ?bb)(listofA $? ?ab $?)) (MAIN::object (is-a C) (OBJECT ?cc)(listofB $? ?bb $?))The alternative, of course, is to use different names for bothpatterns, which seems inelegant to me, given that the values of thevariables aren't going to be used. -Ernest Friedman-HillAdvanced Software ResearchPhone: (925) 294-2154Sandia National LabsFAX: (925) 294-2234PO 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].
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
I think John wrote: (MAIN::object (is-a A) (OBJECT ?ab) (ID $?b 111 $?a)) However, when I use the variable $?a in the RHS, it gives me a error message stating that, no such variable a. You should be able to use it just fine; check your work, or show us the rule that's having the problem. I was stuck up with one more bug. Why does a slot-set in RHS of a rule creates an infinite loop? This is a classic problem in rule-based systems. There are a number of solutions, although the better ones are specific to Jess 7. In Jess 6, the only thing you can do is modify the left-hand-side of the rule so that after you modify the fact, it won't match anymore. For example, if the right-hand-side modifies the name slot to be John, then add to the pattern on the left-hand-side so it only matched is the name slot is not John. In Jess 7, there is the no-loop declaration, which can be applied to rules to explicitly break this kind of loop; and there's the slot-specific declaration for templates, which breaks loops in which slots not matched on the left-hand-side are being modified on the right-hand-side. - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National LabsFAX: (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]
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
I think John wrote: However, (defrule match (MAIN::object (is-a A) (OBJECT ?ab) (ID $?b 111 $?a)) (MAIN::object (is-a B) (OBJECT ?bb) (listofA $?before ?ab $?after)) (MAIN::object (is-a C) (OBJECT ?cc) (listofB $?before ?bb $?after)) =) the above rule never activates. The rule on Class C never returns true. My guess is that this is because you've used the same named variables before and after in both patterns; this is telling Jess that the before and after parts of the multislots should be the same in both facts, which I don't think is what you intend. Instead of using named variables, use blank variables -- i.e., (MAIN::object (is-a B) (OBJECT ?bb) (listofA $? ?ab $?)) (MAIN::object (is-a C) (OBJECT ?cc) (listofB $? ?bb $?)) The alternative, of course, is to use different names for both patterns, which seems inelegant to me, given that the values of the variables aren't going to be used. - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National LabsFAX: (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]
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Like Ernest, I was confused by the terminology being used to describe the problem, until I loaded the Protege project and saw what you are trying to do. I think the JESS rule you want is (minus the back-slashes and spaces): (defrule simple-multi-multi-match (object (is-a Hello)(OBJECT ?hello) (ResourceID $?b 111 $?a)) ?behavior - (object (is-a NodeSpoof) (Resourcesequence $?before ?hello $?after)) = (printout t Behavior ID: (slot-get ?behavior BehaviorID) crlf)) In JessTab translation of Protege instances to Jess facts, you have the Jess template slot OBJECT that references the object corresponding to the translated fact. That's what you can use in your subsequent matches for objects. John wrote: Q1. what is the logical difference between (defglobal ?*re* = (nth$ 1 (find-all-instances ((?h Hello)) (member$ 111 (slot-get ?h Resource\ ID) and (defglobal ?*re* = (nth$ 1 (find-all-instances ((?h Hello)) (eq (slot-get ?h Resource\ ID) 111 Because, the second statement points to the first instance, even if there is no field matching 111. Just try slot-get after the defglobal in Jess prompt to confirm. The second statement should be empty, if your Resource\ ID slot has cardinality multiple. Thus (slot-get ?h Resource\ ID) is a list, and can never equal 111. So find-all-instances should return the empty list. Samson -- Samson Tuemail: [EMAIL PROTECTED] Senior Research Scientistweb: www.stanford.edu/~swt/ Stanford Medical Informatics phone: 1-650-725-3391 Stanford University fax: 1-650-725-7944 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]
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
I think John wrote: It is fascinating as well as frustrating as solving problem bring forth new ones. Frustrating, indeed. There are two quite different sets of terminology and concepts all smushed together in this thread (Jess and Protege) and although I can guess at what's being discussed at times, I'm never quite sure. One of these days I'm going to have to make a study of Protege and JessTab so I can contribute to this kind of discussion. As it is, there are but a few places where I can contribute something, so I'll give it a try. Q2. What is the difference between defglobal and bind? I understand defglobal is global and reset doesnt affect it. But I see funny things. In the project I gave in my last mail, jus change (defglobal ?*res* = ... to (bind ?res ... I get funny results. (change the variable in defrule also) A defglobal is sort of like a Java static variable, whereas a variable created by bind' at the command prompt is like a local variable, available only at the command prompt. If you define a rule and use a variable of the same name, the fact that the local variable at the command prompt exists is completely irrelevant -- it will be utterly ignored. So while using the name of a defglobal on the left side of a rule means to match a slot to the value of a defglobal, using the name of a local variable defined at the prompt is just like using any other variable name -- the variable is bound to whatever value is in that slot, and matching continues. To repeat: any value bound to a local variable at the prompt is completely irrelevant in the definition or behavior of any rules. Q3. Can rules can be nested? No. Not sure what that would even mean. Finally, Dona, my problem of matching multifield to multifield instance slot is still unsolved. find-all-instances provides a list of matching fields. However, inside the rule, the matching occurs only to the head instance of the list. Why is the below code not firing any rules (defrule simple-multi-multi-match ?rem - (object(is-a Hello) (Resource\ ID $?before 111 $?after)) ?behavior - (object(is-a Node\ Spoof) (Resource\ sequence $?before ?rem $?after)) = (printout t Behavior ID\: (slot-get ?behavior Behavior\ ID) crlf)) I understand ?rem is an object, Specifically, it's a jess.Fact object. Perhaps the Java instance you're interested in is held in a slot named OBJECT, which is how normal Jess definstances work. Have you tried that? then how do I get the multi-slot value from it, to use in second statement.(without defglobals) I think part of the difficulty here is that we're using different terms to describe the same things, and as a result, we're not communicating. A FACT has slots. The thing that you're matching with a PATTERN like (object... is a FACT. A FACT has SLOTS. The things that you're matching like (is-a... and (Resource\ sequence are SLOTS. Some SLOTs are single slots, which can hold only a single value. Other slots are MULTISLOTS, which hold a list of zero or more values of any kind. Every SLOT has a name. One thing about Jess multislots (and Jess lists in general) is that they are *flat*. If you try to construct a list which contains nested lists, they all get flattened to a single one-dimensional list. A list (or multislot) can, however, contain arbitrary Java objects, including other jess.Fact objects (which themselves have slots of their own) or Protege instances. So *WHICH* multislot(s) is/are of interest? And what exactly are the types of the values that they hold? I'm sure that the questions you're asking have straightforward answers. But without clear answers to *my* questions, I can't be of any help to you at all. - Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National LabsFAX: (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]
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Hi Dona,It is fascinating as well as frustrating as solving problem bring forth new ones. Honestly, I dont know how the error vanished off my screen. I was trying something else and incidently the bug buggered off. However, I dont see any difference in your code and mine. I reckon the problem is with protege instances. Sorry that I didnt help much about it.I got interesting questions from the problems I faced. Q1. what is the logical difference between(defglobal ?*re* = (nth$ 1 (find-all-instances ((?h Hello)) (member$ 111 (slot-get ?h Resource\ ID)and(defglobal ?*re* = (nth$ 1 (find-all-instances ((?h Hello)) (eq (slot-get ?h Resource\ ID) 111 Because, the second statement points to the first instance, even if there is no field matching 111. Just try slot-get after the defglobal in Jess prompt to confirm. Q2. What is the difference between defglobal and bind? I understand defglobal is global and reset doesnt affect it. But I see funny things. In the project I gave in my last mail, jus change(defglobal ?*res* = (nth$ 1 (find-instance ((?h Hello)) (slot-get ?h Resource\ ID ?n:(member$ 111 ?n) to(bind ?res (nth$ 1 (find-instance ((?h Hello)) (slot-get ?h Resource\ ID ?n:(member$ 111 ?n)I get funny results. (change the variable in defrule also)Q3. Can rules can be nested? Finally, Dona, my problem of matching multifield to multifield instance slot is still unsolved.find-all-instances provides a list of matching fields. However, inside the rule, the matching occurs only to the head instance of the list. Why is the below code not firing any rules(defrule simple-multi-multi-match ?rem - (object(is-a Hello) (Resource\ ID $?before 111 $?after)) ?behavior - (object(is-a Node\ Spoof) (Resource\ sequence $?before ?rem $?after)) = (printout t Behavior ID\: (slot-get ?behavior Behavior\ ID) crlf))I understand ?rem is an object, then how do I get the multi-slot value from it, to use in second statement.(without defglobals) In the project i gave in last mail:The expected rule firing and output:Jess (batch h:\\CLIPS\\simple.clp)Behavior ID: 5Behavior ID: 2Behavior ID: 13Observed:Jess (batch h:\\CLIPS\\simple.clp) [Activation: MAIN::simple-multi-multi-match f-472 ; time=794 ; salience=0][Activation: MAIN::simple-multi-multi-match f-468 ; time=786 ; salience=0]For a total of 2 activations in module MAIN.Behavior ID: 5 Behavior ID: 12Thx indeed, for your time.JFCOn 6/30/06, Dona Mommsen [EMAIL PROTECTED] wrote:Hi John,On Jun 29, 2006, at 3:54 AM, John wrote: Hi, Im back with problems, but quite interesting ones. I solved the problem Dona have listed in her last mail. However, I found more problems while doing so.I apologize that I didn't have the time to look into it. But now I'mcurious: How did you get rid of the error message? Jess reported an error in routine ValueVector.setwhile executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance ) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest3 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?r : ( member$ ?*a* $?r ) ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) )at line 7. I tried to match multislot to multislot instances. The problem is that only first occurence of the instance is searched. I have attached the protege/Jess project files. This project is just a modified implementation of Dona's model. The Jess batch files contains the pattern matching rules ( simple.clp). From the scripts: (mapclass :THING)Well, I don't know if it is relevant, but I usually don't do(mapclass:THING), because it maps the entire Protege system classes (unnecessaryoverload in your fact base if you are not doing anyting with them). In addition, this mapping includes also the JessTab classes, see under:SYSTEM-CLASS there are subclasses :JESS-ENGINGE, :JESS-DEFINITION,:RULE, :FUNCTION. It would confuse me if I had them in the fact base.On my system it apparentlyalso troubles Protege. When I tried (mapclass :THING) everyting got asserted in the fact base, but calling(clear) instantly crashes Protege. Have you tried to (clear) your factbase? I wonder if this Is a version-specific issue on my machine, or a general thing not to map :THING. Although I assume that you are usingprotege frames, note that the JessTab website explicitly warns of doingthat with owl projects: Avoid doing (mapclass owl:Thing) under OWL, because JessTab will map all the hidden RDF/OWL classes as well, which may result in a large amount of unwanted Jess facts and stability problems. For the same reason, avoid mapping metaclasses and metaproperties under OWL. Use an intermediate subclass of owl:Thing and map this class instead. ;matching the integer 111 in the multislot Resource ID(defglobal ?*res* = (nth$ 1 (find-instance ((?h Hello)) (slot-get ?h Resource\ ID ?n:(member$ 111 ?n)Putting just one
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Hi Dona,thx for helping me out. But what if the slot Resource ID is itself a multislot? how do I match multislot to a multislot of instances?Thx for your time.John Felix C J On 6/23/06, Dona Mommsen [EMAIL PROTECTED] wrote: Hi John,I was trying to reproduce John's small example and I was convinced thatmatching multislots with Protege is possible.I used the model described by John (see below).I created 4 Instances of Hello with Resource\ ID 1 through 4 I created 3 Instances of Node\ Spoof:Behavior\ ID A Resource sequence (1 3 4)Behavior\ ID B Resource sequence (2 3)Behavior\ ID C Resource sequence (1 2 3 4)These are all mapped Protege instances, so the multislot resource sequence is actually a list of Protege intstances.For example, the fact for the instance with Behavior\ ID A looks likethis:(MAIN::object (is-a Node Spoof) (is-a-name Node Spoof) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance)(Resource sequenceJava-Object:edu.stanford.smi.protege.model.DefaultSimpleInstanceJava-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance)(Behavior ID A))I simplified the rule just to match multislots with instances, and Itried 2 alternatives, one with return value constraint and one with the multifield.For each test, I bind a Protege instance to a global variable that Iuse in the rules. ;; ;;Example with return value constraint cf. JiA p. 106 ;; Hello with Resource ID 1 is in Node Spoof A and C ;; (defglobal ?*a* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get?h Resource\ ID) 1 (defrule testnest3?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) ;; ;;Example with multifields JiA p. 103 ;; Hello with Resource ID 2 is in Node Spoof B and C ;; (defglobal ?*b* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get?h Resource\ ID) 2 (defrule testnest4?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf))The rules match properly and fire, but I do get error messages in bothcases: Jess (defrule testnest3?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) == Activation: MAIN::testnest3 :f-4 == Activation: MAIN::testnest3 :f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest3 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?r : ( member$ ?*a* $?r ) ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) )at line 7. Jess (run) FIRE 1 MAIN::testnest3 f-6 NodeC FIRE 2 MAIN::testnest3 f-4 NodeA 2 Jess (defrule testnest4?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) == Activation: MAIN::testnest4 :f-5 == Activation: MAIN::testnest4 :f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance ) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest4 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?before ?*b* $?after ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) )at line 9. Jess (run) FIRE 1 MAIN::testnest4 f-6 NodeC FIRE 2 MAIN::testnest4 f-5 NodeB 2While Jess is still able to fire the rules correctly, it is about the last thing it does before Protege hangs.Any idea what is going on here?I'm using Protege 3.1.1 Build 216, JessTab 1.4, Jess 7.0b4 on Mac OS X10.3.9Thanks in advance for any hintsDona P.S.: I'll gladly send the Protege project to anyone interested.On Jun 21, 2006, at 9:01 PM, John wrote: first, thx for Dona Jason for their valuable comments. Yes, Dona, your guess is right. I am using protege in combo with Jess. I see protege is more powerful if you combine the Jess features. As Dona have accurately guessed, I used JessTab to map instances and classes created in protege to Jess. Jason, Assert(ion) in Jess(with protoge) is done by a GUI interface (Form based). The problem is that the object variable (for the multislots) is a single instance address and doesnt contain the actual contents. As of the contents of the Hello and Node Spoof class; Hello class contain two slots: Resource ID and Neighbor Address(multislot type string) Node Spoof: Behavior ID (string) and Resouce sequence (multislot type Hello)
Re: Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Hi all,Dona, I figured a way to match multislots with multislot instance. However Im not able to solve the error you pointed out. Any help will be great.thx in advance.JFC On 6/27/06, John [EMAIL PROTECTED] wrote: Hi Dona,thx for helping me out. But what if the slot Resource ID is itself a multislot? how do I match multislot to a multislot of instances?Thx for your time.John Felix C J On 6/23/06, Dona Mommsen [EMAIL PROTECTED] wrote: Hi John,I was trying to reproduce John's small example and I was convinced thatmatching multislots with Protege is possible.I used the model described by John (see below).I created 4 Instances of Hello with Resource\ ID 1 through 4 I created 3 Instances of Node\ Spoof:Behavior\ ID A Resource sequence (1 3 4)Behavior\ ID B Resource sequence (2 3)Behavior\ ID C Resource sequence (1 2 3 4)These are all mapped Protege instances, so the multislot resource sequence is actually a list of Protege intstances.For example, the fact for the instance with Behavior\ ID A looks likethis:(MAIN::object (is-a Node Spoof) (is-a-name Node Spoof) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance)(Resource sequenceJava-Object:edu.stanford.smi.protege.model.DefaultSimpleInstanceJava-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance)(Behavior ID A))I simplified the rule just to match multislots with instances, and Itried 2 alternatives, one with return value constraint and one with the multifield.For each test, I bind a Protege instance to a global variable that Iuse in the rules. ;; ;;Example with return value constraint cf. JiA p. 106 ;; Hello with Resource ID 1 is in Node Spoof A and C ;; (defglobal ?*a* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get?h Resource\ ID) 1 (defrule testnest3?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) ;; ;;Example with multifields JiA p. 103 ;; Hello with Resource ID 2 is in Node Spoof B and C ;; (defglobal ?*b* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get?h Resource\ ID) 2 (defrule testnest4?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf))The rules match properly and fire, but I do get error messages in bothcases: Jess (defrule testnest3?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) == Activation: MAIN::testnest3 :f-4 == Activation: MAIN::testnest3 :f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest3 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?r : ( member$ ?*a* $?r ) ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) )at line 7. Jess (run) FIRE 1 MAIN::testnest3 f-6 NodeC FIRE 2 MAIN::testnest3 f-4 NodeA 2 Jess (defrule testnest4?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID)crlf)) == Activation: MAIN::testnest4 :f-5 == Activation: MAIN::testnest4 :f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance ) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest4 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?before ?*b* $?after ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) )at line 9. Jess (run) FIRE 1 MAIN::testnest4 f-6 NodeC FIRE 2 MAIN::testnest4 f-5 NodeB 2While Jess is still able to fire the rules correctly, it is about the last thing it does before Protege hangs.Any idea what is going on here?I'm using Protege 3.1.1 Build 216, JessTab 1.4, Jess 7.0b4 on Mac OS X10.3.9Thanks in advance for any hintsDona P.S.: I'll gladly send the Protege project to anyone interested.On Jun 21, 2006, at 9:01 PM, John wrote: first, thx for Dona Jason for their valuable comments. Yes, Dona, your guess is right. I am using protege in combo with Jess. I see protege is more powerful if you combine the Jess features. As Dona have accurately guessed, I used JessTab to map instances and classes created in protege to Jess. Jason, Assert(ion) in Jess(with protoge) is done by a GUI interface (Form based). The problem is that the object variable (for the multislots) is a single instance address and doesnt contain the actual
Matching multislots with JessTab/ Protege [was: JESS: Help on Jess Rules ..plz]
Hi John, I was trying to reproduce John's small example and I was convinced that matching multislots with Protege is possible. I used the model described by John (see below). I created 4 Instances of Hello with Resource\ ID 1 through 4 I created 3 Instances of Node\ Spoof: Behavior\ ID A Resource sequence (1 3 4) Behavior\ ID B Resource sequence (2 3) Behavior\ ID C Resource sequence (1 2 3 4) These are all mapped Protege instances, so the multislot resource sequence is actually a list of Protege intstances. For example, the fact for the instance with Behavior\ ID A looks like this: (MAIN::object (is-a Node Spoof) (is-a-name Node Spoof) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Resource sequence Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Behavior ID A)) I simplified the rule just to match multislots with instances, and I tried 2 alternatives, one with return value constraint and one with the multifield. For each test, I bind a Protege instance to a global variable that I use in the rules. ;; ;;Example with return value constraint cf. JiA p. 106 ;; Hello with Resource ID 1 is in Node Spoof A and C ;; (defglobal ?*a* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get ?h Resource\ ID) 1 (defrule testnest3 ?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID) crlf)) ;; ;;Example with multifields JiA p. 103 ;; Hello with Resource ID 2 is in Node Spoof B and C ;; (defglobal ?*b* = (nth$ 1 (find-instance ((?h Hello)) (eq (slot-get ?h Resource\ ID) 2 (defrule testnest4 ?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID) crlf)) The rules match properly and fire, but I do get error messages in both cases: Jess (defrule testnest3 ?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?r:(member$ ?*a* $?r))) = (printout t Node (slot-get ?r2 Behavior\ ID) crlf)) == Activation: MAIN::testnest3 : f-4 == Activation: MAIN::testnest3 : f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest3 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?r : ( member$ ?*a* $?r ) ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) ) at line 7. Jess (run) FIRE 1 MAIN::testnest3 f-6 NodeC FIRE 2 MAIN::testnest3 f-4 NodeA 2 Jess (defrule testnest4 ?r2 - (MAIN::object (is-a Node\ Spoof) (Resource\ sequence $?before ?*b* $?after)) = (printout t Node (slot-get ?r2 Behavior\ ID) crlf)) == Activation: MAIN::testnest4 : f-5 == Activation: MAIN::testnest4 : f-6 Jess reported an error in routine ValueVector.set while executing rule LHS (TECT). Message: Bad index 5 in call to set() on this vector: (MAIN::object (is-a Hello) (is-a-name Hello) (OBJECT Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance) (Neighbor Address rst uvw xyz) (Resource ID 4)). Program text: ( defrule testnest4 ?r2 - ( MAIN::object ( is-a Node Spoof ) ( Resource sequence $?before ?*b* $?after ) ) = ( printout t Node ( slot-get ?r2 Behavior ID ) crlf ) ) at line 9. Jess (run) FIRE 1 MAIN::testnest4 f-6 NodeC FIRE 2 MAIN::testnest4 f-5 NodeB 2 While Jess is still able to fire the rules correctly, it is about the last thing it does before Protege hangs. Any idea what is going on here? I'm using Protege 3.1.1 Build 216, JessTab 1.4, Jess 7.0b4 on Mac OS X 10.3.9 Thanks in advance for any hints Dona P.S.: I'll gladly send the Protege project to anyone interested. On Jun 21, 2006, at 9:01 PM, John wrote: first, thx for Dona Jason for their valuable comments. Yes, Dona, your guess is right. I am using protege in combo with Jess. I see protege is more powerful if you combine the Jess features. As Dona have accurately guessed, I used JessTab to map instances and classes created in protege to Jess. Jason, Assert(ion) in Jess(with protoge) is done by a GUI interface (Form based). The problem is that the object variable (for the multislots) is a single instance address and doesnt contain the actual contents. As of the contents of the Hello and Node Spoof class; Hello class contain two slots: Resource ID and Neighbor Address(multislot type string) Node Spoof: Behavior ID (string) and Resouce sequence (multislot
