Author: Dave Gomboc
Date: 01:07:59 12/12/99
Go up one level in this thread
On December 11, 1999 at 21:14:14, Christophe Theron wrote: >On December 11, 1999 at 20:18:45, John Warfield wrote: > >>On December 11, 1999 at 19:46:50, Bertil Eklund wrote: >> >>>On December 11, 1999 at 17:52:56, Tom King wrote: >>> >>>>Which of the well known test suites predicts the strength of chess programs most >>>>accurately? >>>> >>>>I ask this, because I recently made some *slight* mods. to the evaluation >>>>function in my program, Francesca. I ran the LCT-2 suite, and the results >>>>indicated that it was a wash - the modification gave me about 5 ELO points, >>>>apparently. >>>> >>>>I then ran a series of fast games against another amateur program. I realize >>>>it's important to play a large number of games, to reduce the margin of error, >>>>so I ran two matches of 65 games. The result was this: >>>> >>>>MATCH 1 >>>>"Normal" Francesca scored 37% against the amateur program. >>>> >>>>MATCH 2 >>>>"Modified" Francesca scored 45% against the amateur program. >>>> >>>>Quite a difference! It implies that the modification is worth over 50 ELO. I >>>>guess I need to play more games, against a variety of programs to verify whether >>>>this improvement is real, or imaginary. >>>> >>>>Anyhow, beware of reading too much into ELO predictions of test suites.. >>>> >>>>Cheers All, >>>>Tom >>> >>>Hi! >>> >>>Mr Irazoquis secret test-suite is very impressing! I think it´s about 111 >>>positions. He can predict a new programs strength better than any other test I >>>have seen so far. If his predictions remains as good as his previous results, I >>>hope we can stop publishing our list and just play for fun. >>> >>>Bertil SSDF >> >> Why is this Test secret?? > > >Because this guarantees that nobody will tune his program to do well in this >test. > >I don't know how he does it exactly, but Enrique was able to predict the ratings >of the new SSDF list a few days before it was published, with a typical margin >of error of +/- 5 elo points... > > > Christophe Maybe he buys an SSDF tester a few beers?... ;-) Dave
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