Yes those are the two best sources. Drools 2.x does not have alpha nodes
- Drools 3.0 does.
Mark
Mitch Christensen wrote:
Jess in Action has a chapter that describes the Rete implementation in
relative detail.
The publication 'Production Matching for Large Learning Systems'
(http://reports-archive.adm.cs.cmu.edu/anon/1995/CMU-CS-95-113.pdf) provides
a tutorial approach to understanding the Rete algorithm along with
pseudo-code, providing a detail view into an implementation of Rete.
I haven't looked at the Drools source yet, but join nodes typically
represent beta memory.
-Mitch
-----Original Message-----
From: sol myr [mailto:[EMAIL PROTECTED]
Sent: Friday, March 17, 2006 2:33 PM
To: [email protected]
Subject: [drools-user] [drools] "alpah/beta" memories : could anyone provide
links ?
Hi,
When reading about Drools (and Rete in general), I keep running into
references to "alpha memory" and "beta memory".
1)
Would anyone please happen to know any good web-sites (or books) that
explain those terms in detail ?
2)
Also, could anyone please tell which Drools classes hold those "alaph" and
"beta" memories ?
I ran Droos with a debugger, and noticed some data (partial "tuples")
stored in class "JoinNode" and "TupleSource" ... is this considered alpha or
beta ?
Thanks very much.
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