Search found 9377 matches

by Dann Corbit
Sat Jul 04, 2020 6:08 am
Forum: Computer Chess Club: General Topics
Topic: A community project CCMT
Replies: 10
Views: 283

Re: A community project CCMT

I am hoping to get 100 positions out of the 404 that are worth keeping. I don't think it has to be a titantically difficult set like the vinvin tough problem set, so that you have to have very expensive hardware or a lot of patience (though I would like enough tough problems to keep it interesting a...
by Dann Corbit
Sat Jul 04, 2020 6:01 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 174
Views: 2002

Re: Throwing out draws to calculate Elo

LOS also does not understand the strength of any of the opponents. All it knows is wins and losses, that's it
by Dann Corbit
Sat Jul 04, 2020 5:59 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Throwing out draws to calculate Elo
Replies: 174
Views: 2002

Re: Throwing out draws to calculate Elo

You don't get it, Elo says they are even. LOS says the second engine is stronger. They don't agree, and I trust Elo, which is accurate. The other places where Elo is equal the LOS will almost always be higher. Again, wrong. Elo is accurate, LOS is not LOS gives no useful information. It always says ...
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: 174
Views: 2002

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: 10
Views: 283

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: 10
Views: 283

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: 174
Views: 2002

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: 174
Views: 2002

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: 174
Views: 2002

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: 174
Views: 2002

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.