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   Author  Topic: It's good to see bots being improved  (Read 4404 times)
Swynndla
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Re: It's good to see bots being improved
« Reply #15 on: Dec 12th, 2011, 5:35pm »
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No Fritz's games were Fast (ie 30 secs/move) not Blitz (ie 15 secs/move).  This is significant as Fritz's track record against Sharp2011 is about even or so in Blitz, but he dominates in it in Fast (30 secs), but this new marwin seems to have jumped in strength even at 30 secs/move.
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froody
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Re: It's good to see bots being improved
« Reply #16 on: Dec 12th, 2011, 10:15pm »
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http://arimaa.com/arimaa/mwiki/index.php/Bot_List
« Last Edit: Dec 13th, 2011, 7:45am by froody » IP Logged

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Fritzlein
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Re: It's good to see bots being improved
« Reply #17 on: Dec 12th, 2011, 10:46pm »
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It's true that my blitz record against bots is much worse than my fast record.  That is to say, I suffer more from the speedup than an average human does.
 
There was a forum thread in which a two-parameter rating system was proposed: players would get a rating to reflect general playing strength and a "slope" to reflect how many rating points they gained (relatively speaking) for each doubling of thinking time.  Of course it might not be linear, but the idea was to reflect in the simplest model possible that more time helps different people differently.
 
Indeed, iirc, 99of9 implemented this long ago when we had much less data, and found that Omar had an even steeper slope than I, whereas PMertens seemed to play just as well at blitz as at slow games.  It would be interesting to re-run the model with the much larger dataset we now have.
 
[EDIT]
My memory was wrong.  99of9's numbers showed that I played just as well fast as slow, if not a little better.  But I remembered correctly that Omar was horrible at fast games and PMertens very good at them.  If anyone wants to investigate this with present-day data, this would be a good thread to bring back from the dead.
 
http://arimaa.com/arimaa/forum/cgi/YaBB.cgi?board=talk;action=display;nu m=1103741634;start=15
« Last Edit: Dec 12th, 2011, 10:56pm by Fritzlein » IP Logged

Fritzlein
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Re: It's good to see bots being improved
« Reply #18 on: Dec 12th, 2011, 10:56pm »
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on Dec 12th, 2011, 10:15pm, froody wrote:
http://arimaa.com/arimaa/mwiki/index.php/Bot_list

Thanks, froody.  But why are there two of them?
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froody
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Re: It's good to see bots being improved
« Reply #19 on: Dec 13th, 2011, 7:52am »
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Me being stupid. Fixed now.
 
There are still details missing. Edit if you can, or post info here and someone will add it.
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tize
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Re: It's good to see bots being improved
« Reply #20 on: Dec 13th, 2011, 2:14pm »
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on Dec 13th, 2011, 7:52am, froody wrote:
Edit if you can, or post info here and someone will add it.

 
Ok here is some data: Marwin first appeared 2008 and is written in C++. The version that competed in 2011 was 1.4MB in size, and right now he is made up of ~27k lines of code (everything included).
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rbarreira
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Re: It's good to see bots being improved
« Reply #21 on: Dec 15th, 2011, 10:13am »
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on Dec 12th, 2011, 3:03pm, Fritzlein wrote:

A more persuasive hypothesis may be that I am getting worse.  I just lost nine of twelve to Sharp2011Blitz.  (No, this isn't my tactic to get out of defending the Arimaa Challenge this year; I just couldn't compete.  Tongue)

 
If it had been a tactic it would be rendered invalid by your latest winning streak of 8 games against Sharp2011Blitz and marwin Wink
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Fritzlein
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Re: It's good to see bots being improved
« Reply #22 on: Dec 15th, 2011, 10:52am »
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on Dec 15th, 2011, 10:13am, rbarreira wrote:
If it had been a tactic it would be rendered invalid by your latest winning streak of 8 games against Sharp2011Blitz and marwin Wink

Heh, I don't understand the difference.  I didn't have some flash of insight to help me play better.  Sometimes my brain works better than other times, for reasons unexplained.
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