Author: Joshua Haglund
Date: 21:14:10 11/30/02
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On November 30, 2002 at 23:33:18, Robert Hyatt wrote: >On November 30, 2002 at 12:23:39, Joshua Haglund wrote: > >>Robert, >> >>What is the intention of limiting the position.bin file to 1 mb? >> >>Is it possible for you to make the limit 2 mb in the next release? >> >>How much "learn" do you have, and will you share it? ;) >>(book.lrn && position.lrn) >> >>Thanks much, >> >>Joshua >>toneewa@yahoo.com > > >I limited it to (I think) 65536 positions. For several reasons. > >1. that kind of learning is very time-dependent. It is really intended >to solve problems caused where a clever opponent takes you out of book really >quickly, then "feels" his way around to a winning-type position and then tries >it repeatedly on a chess server to inflate his rating. This kind of learning >makes that _very_ difficult to do in a series of games. > >2. The data is stuffed into the hash table as "permanent" entries. If the >file gets bigger, then you lose hash table entries, for positions you will >probably never see anyway. > >I don't publish the position.bin learn files as they are very opponent-specific >and also _highly_ version-specific since they contain specific evaluations and >search results that a different version might disagree with... > >I delete mine weekly, for example.... Thanks for your reply! How about your book_lrn file? If it isn't any trouble I wouldn't mind your position.lrn files. :) Joshua toneewa@yahoo.com
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