Thanks a lot for your information. I will probably not publish, but we are open source (http://oakfoam.com/). You can easily check our implementation.
If I remember correctly Francois followed the crazy stone paper "Computing Elo Ratings of Move Patterns in the Game of Go" when implementing. Detlef Am Sonntag, den 20.01.2013, 11:07 -0800 schrieb David Fotland: > Will you publish or share your progressive widening implementation? > > David > > > -----Original Message----- > > From: [email protected] [mailto:computer-go- > > [email protected]] On Behalf Of ds > > Sent: Sunday, January 20, 2013 7:51 AM > > To: [email protected] > > Subject: [Computer-go] Progressive Bias, progressive widening > > > > Hi, > > > > I know, this topic was in the list a while ago. My problem is, as in all > > science, nobody publishes negative results:) > > > > Oakfoam uses both, progressive bias and progressive widening. My > > understanding is, this is state of the art in many mc bots, at least the > > theses I read used both. > > > > Both is working well in oakfoam. Now I turned off progressive widening > > and tuned progressive bias carefully (good scaling of the bias and > > improved decay functions). I got the same playing strength as with both > > (bias and widening) before on 9x9 against gnugo, but I can not improve > > anymore with progressive widening turned on again. > > > > My interpretation is: Progressive bias is the superior concept, but it > > is easier to use progressive widening. > > Progressive widening is not sensitive to the ratio of the pre knowledge > > value of two moves, only the better move must be unpruned first, but > > progressive bias is sensitive to the ratio between the pre knowledge > > values. > > > > It may be even more difficult to improve the progressive bias on 19x19, > > so there might be a reason to use widening, but at the moment I feel I > > should try without? > > > > Am I wrong? > > > > Detlef > > > > > > _______________________________________________ > > Computer-go mailing list > > [email protected] > > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > > _______________________________________________ > Computer-go mailing list > [email protected] > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > _______________________________________________ Computer-go mailing list [email protected] http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
