Sorry, got one answer,
count-query-results!
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mehta, Chirag
(IT)Sent: 04 August 2004 13:39To:
[EMAIL PROTECTED]Subject: JESS: Questions
Hello,
I have a few more
questions. Hopefully, these aren't as simple as my previous
I think Mehta, Chirag (IT) wrote:
Hello,
I have a few more questions. Hopefully, these aren't as simple as my
previous ones.
Firstly, is there a simple way of checking how many facts have a
particular slot value??
As you said, a query with count-query-results is one good way. The
1) You can use defquery and count-query-results.
2) Facts that have contributed to activations are still available for
regular pattern matching (i.e. your other, non-activated rule will still
consider facts that support existing activation records). If you are trying
to find a way to compare a
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: 04 August 2004 15:13
To: [EMAIL PROTECTED]
Subject: Re: JESS: Questions
I think Mehta, Chirag (IT) wrote:
Hello,
I have a few more questions. Hopefully, these aren't as simple
I think Mehta, Chirag (IT) wrote:
Sorry, One more thing,
Is there anyway of setting a rule to check after all the facts have been
asserted???
A rule with a low salience will fire according to whats on the agenda at
the current time. I require to check whether or not, after all the facts
I think Young-Jin Lee wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
I am new to JESS and I got two questions when I read through Pump examples.
First of all, according to the JESS manual, dynamic should be declared on creation
of JavaBeans object, if the definstance facts
I think Gang Liu wrote:
Hi, all
I got several questions of integration of Java Jess. I hope to get help
from your expertise. thanks!
I define serveral java beans. I also define several rules based on Jess
language. So, I want beans and rules work together to implement some logics.
What you really want is the forall conditional element, which isn't
implemented yet in Jess, although should be in the next release.
(forall (person (name ?Name))
(instruction (name ?Name) (counted true)))
means for each person, there is a corresponding instruction, which
is exactly
All
jess commands have an equilvalent java command. For run-until-halt,
simply call the Rete method runUntilHalt(). I am by far no expert
butI think you might have towrite your rules differently to handle
conflicts.
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL
Hi!
I've been on vacation, so I'm replying "a little late"...
Greg Ball [EMAIL PROTECTED] wrote:
Part one was to use the Toplink product, which plugs into Weblogic to
manage
bean persistence. It can map an object to multiple tables, joins, etc, and
let
us create objects that were more "natural
There may be a third answer to the RDBS / RBS integration question, or at least we
are attempting it. One of our problems is rollup state, where the state of an
object is dependant on the state of all its children, each of those objects is
dependant upon the state of their children..etc.
: Re: JESS: Questions on when to use Rule Based System
Chuck,
I know this is not addressing the question you asked but I am curious why
you would be using an Expert System for a time and attendance system? I
have done several of these and it seems to me that the rules for such an
application
Hello-
For such a large system, it makes little sense to mirror data stored in a
database in a RBS knowledgebase as well. Rather, this problem seems
perfectly suited for a transaction based RDBMS. Many of the rules can
probably be placed in database functions and triggers.
You may still wish
Hi,
One of the things that the recent discussions of rule-based systems
applications didn't address is efficiency. Jess is built around the
Rete algorithm, which explicitly trades space for time - i.e., it uses
lots of memory, but under the right circumstances, is much faster than
a naive
Hi!
So I'd like to use an RBS, but can it handle it? I can't imagine
keeping all that data in memory. So how efficient would the
engine be at reading/representing this information in an SQL
table? I've seen Thomas Barkenow's RDBS extension. It basically
is wrapper for creating individual
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