Actually, by selecting the activations that you want to fire yourself makes a rule-engine useless. If you can solve your problem algorithmically then you don't need a rule-engine. By letting the rule-engine decide what order to impose on the rule firings you can dynamically build the search tree. You just have to state the rules that make up the selection criteria in the selection process. So do not follow the process but formulate the knowledge that is used in the process. I hope this helps. I am not exactly sure what you mean by plan-recognition. In what context are you doing this?
Cheers, Martijn -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jonathan Sewall Sent: donderdag 12 januari 2006 16:54 To: jess-users@sandia.gov Subject: JESS: Using a rule engine for plan recognition We're using Jess to implement a plan-recognition program whose heart is a pretty ordinary depth-limited search algorithm. Two matters, one general and one specific: 1. I'd be interested in others' experience with this use of Jess, esp. strategies for backtracking. 2. I'd ask that jess.Activation.setInactive(boolean) be made public. We currently use selective firing of Activation instances from the agenda. For that I employ Rete.run(1) to fire one Activation at a time and Activation.setInactive() to deactivate those agenda entries listed prior to the one I want to fire at a given point. I haven't figured out how to fit my selection process into the way I think a Strategy implementation would work. I'd rather use only the public API to Jess, but I have to put in a package-private class to give me access to Activation.setInactive(). Thanks very much, Jonathan Sewall -------------------------------------------------------------------- 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] -------------------------------------------------------------------- -------------------------------------------------------------------- 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] --------------------------------------------------------------------
