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Topic: RU=30 (Read 1470 times) |
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Fritzlein
Forum Guru
Arimaa player #706
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Posts: 5928
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I notice that there are currently twelve bots with an RU of 30. I believe that is a record for the most since the RU's started incrementing. Will there be even more as the computer championship approaches? I hope and expect so.
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Fritzlein
Forum Guru
Arimaa player #706
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Posts: 5928
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Re: RU=30
« Reply #1 on: Dec 2nd, 2005, 1:05pm » |
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Now (December 2, 2005) there are 13 bots with RU=30. The human vs. bot games have declined recently, but the bot vs. bot games have picked up.
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Fritzlein
Forum Guru
Arimaa player #706
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Re: RU=30
« Reply #2 on: Dec 31st, 2005, 7:47pm » |
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As we ring in the new year 2006, there are 15 bots with RU=30, thanks in large part to Gnobot practicing against all the available bots in turn.
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Ryan_Cable
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Arimaa player #951
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Re: RU=30
« Reply #3 on: Jan 1st, 2006, 11:57am » |
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Yesterday, I boosted the number up to 17 at RU=30, but there seems to be a bug in the RU incrementing code.
From http://arimaa.com/arimaa/rating/
Quote:| The rating uncertianty of a player increases by one point per week if the player has been inactive for the week and the rating uncertianty is between 30 and 120. |
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I think the RU has actually been increased for everyone. As of this post, there are 22 players (including bots) at RU=31 and only 5 at RU=30. I haven’t been paying close attention to RU, but I think this is probably a new year related problem, since no one has mentioned it before.
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| « Last Edit: Jan 1st, 2006, 12:06pm by Ryan_Cable » |
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PMertens
Forum Guru
Arimaa player #692
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Re: RU=30
« Reply #4 on: Jan 1st, 2006, 2:54pm » |
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Quote:| I haven’t been paying close attention to RU, but I think this is probably a new year related problem, since no one has mentioned it before. |
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interesting theory ... but I am pretty sure you will be able to see this again 
probably just an undocumented feature nobody really cared about 
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Fritzlein
Forum Guru
Arimaa player #706
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Posts: 5928
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Re: RU=30
« Reply #5 on: Jan 1st, 2006, 8:13pm » |
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Ryan, I'm pretty sure that everyone (human and bot) gets their RU bumped up by one at the end of every week regardless of activity (to a maximum of 120). I think it has been this way since RU's started incrementing. I thought it was supposed to work that way. In fact I believe that's what I originally suggested in another thread, although it is long enough ago that my memory may be faulty.
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Ryan_Cable
Forum Guru
Arimaa player #951
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Re: RU=30
« Reply #6 on: Jan 14th, 2006, 2:22am » |
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There are currently 18 bots at RU=30, but only 8 humans. However, there are 24 bots with RU<=50, and 21 humans.
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Ryan_Cable
Forum Guru
Arimaa player #951
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Re: RU=30
« Reply #7 on: Jan 15th, 2006, 4:49am » |
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The server did in fact increment everyone's RU this week.
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Fritzlein
Forum Guru
Arimaa player #706
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Posts: 5928
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Re: RU=30
« Reply #8 on: Mar 13th, 2006, 8:59pm » |
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on Jan 14th, 2006, 2:22am, Ryan_Cable wrote:| There are currently 18 bots at RU=30, but only 8 humans. |
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The number of bots with RU=30 is no longer comparable, given the automatic bot v bot games Omar has running, but the number of humans with RU=30 has jumped from 8 to 14. Yippee!
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IdahoEv
Forum Guru
Arimaa player #1753
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Re: RU=30
« Reply #9 on: Mar 15th, 2006, 3:23am » |
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Noob question: What is RU?
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99of9
Forum Guru
Gnobby's creator (player #314)
 
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Re: RU=30
« Reply #10 on: Mar 15th, 2006, 4:12am » |
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It's the "rating uncertainty". It starts very high for newbies, and goes down the more you play (until a limit of 30). But it also increments at one point per week...
Basically it becomes quite a good measure of how often you have played recently.
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Ryan_Cable
Forum Guru
Arimaa player #951
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Posts: 138
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Re: RU=30
« Reply #11 on: Mar 15th, 2006, 4:17am » |
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RU stands for rating uncertainty. The difference in rating between 2 players is input into the ELO formula to get the odds of victory/defeat. If you win a game, your rating is increased by your odds of defeat times your RU. Similarly, if you loose a game, your rating is decreased by your odds of victory times your RU.
Noobs begin with a rating uncertainty of 120, and it slowly decreases with each game they play, with a minimum of 30. Also, everyone has their RU incremented by 1 point at the beginning of each week. Thus the number of people with RU=30 at the end of the week is a fairly good measure of the number of highly active humans/bots.
The exact details of the rating system are available at:
http://arimaa.com/arimaa/rating/
PS Currently there are 16 humans with RU=30, and it is not even half way through the week! There are only 4 more humans RU<=40, but with the current noob explosion, I think we will break 20 this month and have a shot at 30 within 2 months.
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