Search found 9374 matches

by Dann Corbit
Fri Jul 03, 2020 11:34 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

I also do not believe you when you say you would change your engine based on 10 games with an 8 wins and 2 draws outcome. That's a lie and you know it Now (having thought about what I said) I am forced to apologize for saying that. I would never make a change based on ten games, and I was projectin...
by Dann Corbit
Fri Jul 03, 2020 11:30 pm
Forum: Computer Chess Club: General Topics
Topic: A community project CCMT
Replies: 8
Views: 231

Re: A community project CCMT

Or if we are to use polls, we should do some other eliminations first, or have people rank the positions they think are very artistic or very unartistic.

People will get tired of the polls if there are more than 16 I think
by Dann Corbit
Fri Jul 03, 2020 11:29 pm
Forum: Computer Chess Club: General Topics
Topic: A community project CCMT
Replies: 8
Views: 231

Re: A community project CCMT

That is a lot of polls.
I expect that if we have five people on the project and three people say, "I don't like this problem" it should be excluded.
I think that if problems do not raise objections, they are probably OK.
by Dann Corbit
Fri Jul 03, 2020 10:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

Bayesian logic says that we should change our expectation based on new information. If I have 8 wins and 2 draws LOS gives me a number. If I add a thousand draws, LOS gives me the same number. Elo, on the other hand, would use the new information to change the expectation. Elo is really only an indi...
by Dann Corbit
Fri Jul 03, 2020 10:46 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

I am addressing the question pieces at a time, and the draws are an important facet. I was just making the point that you don't believe in LOS either, because you do not trust the LOS number. I mean, if LOS says that the change is almost certain to be an improvement, why wouldn't you use it? Clearl...
by Dann Corbit
Fri Jul 03, 2020 9:52 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

I am addressing the question pieces at a time, and the draws are an important facet. I was just making the point that you don't believe in LOS either, because you do not trust the LOS number. I mean, if LOS says that the change is almost certain to be an improvement, why wouldn't you use it? Clearly...
by Dann Corbit
Fri Jul 03, 2020 9:35 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

Suppose you play ten games. The result is 8 wins 2 draws for engine A. A huge LOS for A. Will you decide that the change you made is worthwhile and incorporate the new code into your engine?

If not, why not? The LOS is enormous.
by Dann Corbit
Fri Jul 03, 2020 8:59 pm
Forum: Computer Chess Club: General Topics
Topic: A community project CCMT
Replies: 8
Views: 231

Re: A community project CCMT

Here is the file with the analysis attached: https://drive.google.com/file/d/1todNHaRKWY8U-Qy6bWH8Nl01QQ6vr_21/view?usp=sharing I have noticed that a lot of them at the deep end have mate in 246, which may be some engine's way of saying "I found a mate but I am not sure how far" because it seems ver...
by Dann Corbit
Fri Jul 03, 2020 7:20 pm
Forum: Computer Chess Club: General Topics
Topic: ChestUCI Database question
Replies: 23
Views: 1948

Re: ChestUCI Database question

I always delete the binaries from iffy packages like that. Then I inspect the code before I build it (starting with diff against an existing close model of SF) then I can see if someone injected something.
by Dann Corbit
Fri Jul 03, 2020 7:11 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 170
Views: 1919

Re: Throwing out draws to calculate Elo

I imagine now that you think I am even more crazy than before. Look! It happed 1000 times that A won and B lost and B never won a single game. That assumes, of course, that there is no randomness and no margin of error. That 1000 wins is buried under a massive error band, probably a googol games wide.