Author: Sune Fischer
Date: 04:35:03 03/17/04
Go up one level in this thread
On March 17, 2004 at 06:53:44, Peter Fendrich wrote: >>I scale it down by a factor 8 when the entries hit a certain limit, ie. >> >>if (hist[index]>X) >> for (i...) >> hist[i]=hist_seed[i]+(hist[i]>>3); > > >This doesn't make sense to me. Maybe you meant to have the for-stmt before the >if-stmt? That's what I have tested a few times but without the hist_seed thing. It's a form of normalizing the table, if you scale you must scale everything otherwise only the best entries gets cut down and not the bad ones. >Is it a random seed and does that really help? It's not random, I just give a small static bonus for pawns to 7th and such so they don't zero out completely, seems those will always be interesting moves. >I have similar results as you but with much less differences than you between >the different frequencies. Without any seed though. -S.
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.