Author: Peter Kappler
Date: 10:20:03 02/08/03
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On February 08, 2003 at 06:28:00, Dave Gomboc wrote: >On February 08, 2003 at 03:30:34, Peter Kappler wrote: > >> >>He has some good ideas. >> >>http://www.worldchessrating.com/521683950.html?529637011233717 >> >>-Peter > >The one thing that always bugs me about Sonas's stuff is that he takes the data, >does some fitting on it, then says "see, this fits the data better!". Well, of >course it does! What he should do is have training data that is *distinct* from >his testing data, e.g. tune his formulae on results from (for example) >1990-1995, then test on (for example) 1996-2000. Tuning on 1990-2000, then >testing on 1990-2000 is bogus. > >Dave Yep, that's a very good point. He asks for feedback at the bottom of the article. You should send him email at jeff@chessmetrics.com. -Peter
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