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The evaluation value and value returned by minimax search
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Marco Costalba



Joined: 14 Jun 2008
Posts: 2097
PostPost subject: Re: The evaluation value and value returned by minimax searc    Posted: Sun Mar 11, 2012 4:04 pm Reply to topic Reply with quote
diep wrote:
Initially there was a posting from Marco Costalba claiming Stockfish was getting tuned by playing sets of 1000 games 1 minute all.


Sorry to chime in, just to calrify that it was not tuning. Testing on 1000 games at 1' per game was used to validate a new feature (not auto-tuning a parameter).

And it worked ! If you look at SF commit history in github you will see that until about 1-2 years ago many changes were committed after 1K games of testing. Today SF is much more mature and finding an increase with just 1K games is not realistic, but at the time the changes were in the range of 10-15 ELO each and the signal/noise level was high enough that even 1K games validation worked most of the times and, on average, let SF to steadily increase ELO from Glaurung.
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Subject Author Date/Time
The evaluation value and value returned by minimax search Ma Chao Fri Mar 09, 2012 11:51 am
      Re: The evaluation value and value returned by minimax searc Joona Kiiski Fri Mar 09, 2012 12:06 pm
            Re: The evaluation value and value returned by minimax searc Pio Korinth Fri Mar 09, 2012 9:51 pm
            Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 5:34 am
            Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 5:58 am
                  Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 12:20 pm
                        Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 2:41 pm
                              Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 3:44 pm
                                    Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 3:47 pm
                                          Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 3:51 pm
                                                Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 3:55 pm
                                                      Re: The evaluation value and value returned by minimax searc Marco Costalba Sun Mar 11, 2012 4:04 pm
                                                            Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 4:10 pm
                                                                  Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 5:03 pm
                        Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 2:43 pm
                        Re: The evaluation value and value returned by minimax searc Uri Blass Sun Mar 11, 2012 3:07 pm
                              Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 3:23 pm
                                    Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 3:47 pm
                                          Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 3:50 pm
                                                Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 3:52 pm
                              Re: The evaluation value and value returned by minimax searc Joona Kiiski Sun Mar 11, 2012 3:42 pm
      Re: The evaluation value and value returned by minimax searc Han Chengye Sat Mar 10, 2012 2:22 am
            Re: The evaluation value and value returned by minimax searc Marco Costalba Sat Mar 10, 2012 12:48 pm
      Re: The evaluation value and value returned by minimax searc Ralph Stoesser Sat Mar 10, 2012 11:12 pm
            Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 6:27 am
      Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 5:09 am
      Re: The evaluation value and value returned by minimax searc Vincent Diepeveen Sun Mar 11, 2012 5:27 am
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