I think Xavier Noria wrote: [Charset iso-8859-1 unsupported, filtering to ASCII...] > > >From your comment and the manual I think I am getting the picture: Is > Jess meant to be used like this? > > - Assert initial facts, rules, etc. > - run > > where run makes somehow changes in the knowledge base via asserts in the > RHSs and so several runs fire rules? It's like the idea is that you are > expected to keep a unique instance of the the engine which makes the > knowledge base evolve.
Yes, this is the scenario for which Jess is optimized. You can use it in a "one-shot" style, but you get more benefits from having long-lasting rule engine instances. > > If that was case I need to rethink the approach we are evaluating. > > Our aim was to implement part of the behaviour of agents as (a very > vague idea of) "rules". For the sake of flexibility we would implement > different profiles of behavious in text files with Jess code. The set > up of the model would instantiate populations (say, 20% with that > behaviour, 15% with that other and so on). In each tick of time the > state of the model and agents (running all in a single virtual machine) > would change as a result of applying them (and probably some further > pure Java code). Each set of rules could potentially be different for > each individual. And the sets could change between executions. > > Does that make any sense? > Yes, and there's no problem there: you can add and remove rules from a running Jess engine; i.e. the rule engine can "learn" as it runs. --------------------------------------------------------- Ernest Friedman-Hill Distributed Systems 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] --------------------------------------------------------------------
