Author: Uri Blass
Date: 11:47:37 11/16/00
Go up one level in this thread
On November 16, 2000 at 14:11:48, Amir Ban wrote: >On November 16, 2000 at 09:07:23, walter irvin wrote: > >>to me programs fall into 2 list bean counters and knowledge based . >>bean counters >>fritz >>junior >>nimzo >>lg2000a >> >>knowledge based >>shredder >>hiarcs >>rebel >>tiger >>diep >>crafty >>king >> >>now you would think that the knowledge based programs would destroy bean >>counters .but that is usually not the case .bean counters are some of the best >>and strongest .which makes me wonder if trying to put so much knowledge in a >>program really makes it better .i think that depth of search would count for >>more than knowledge . > >The term "knowledge based" is traditionally used in the field to excuse the poor >performance of a program by its programmer or its fans. In extreme cases (cf. >Botvinnik) it was used to excuse the failure of a program to play any games. I disagree Shredder,Rebel and tiger have good results and are considered by the poster as knowledge based programs. > >The label gained acceptance because of the wide misconception that understanding >of positions necessarily comes at a great cost of speed. I am sure that it is possible to improve the evaluation without great loss of speed in nodes per second and this is the reason that I am against using the nodes per second to decide about the knowledge of the program, but I believe that part of the understanding cannot be done without great cost of speed. I prefer to talk only about the endgame because I agree that finding the right change in the middlegame's evaluation is not simple. I know that are known things in endgame books that my programs usually do not know(for example knowledge about the fact that KRPP vs KR is often a draw when the pawns are f and h). It is only one example for things that programs do not know about the endgame. Do you plan to implement the knowledge in endgame books in Junior? Can you implement it without significant loss in speed? Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.