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Constant comments on Nonmagical Powers - Less Wrong Discussion

38 Post author: sixes_and_sevens 26 April 2011 10:53AM

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Comment author: [deleted] 26 April 2011 11:41:59PM 0 points [-]

Are you aware of the wisdom of crowds phenomenon (Surowiecki) and correcting a lucky misapplication / hasty application of it, or are you simply unaware of it? I don't get a sense either way.

Also, I wonder whether the correct mean for this sort of wisdom of crowds averaging is arithmetic or geometric. I would be inclined to think that the geometric mean is the appropriate mean.

Comment author: byrnema 27 April 2011 12:11:39AM *  1 point [-]

I'm aware of the wisdom of crowds phenomenon -- I believe sixesandsevens used a good strategy. (Yes.) I haven't read about the corrections, but I wouldn't be surprised if there are some ways to optimize the process. (Why do you ask this second question?)

I wonder whether the correct mean for this sort of wisdom of crowds averaging is arithmetic or geometric.

I think this is an interesting question too. Perhaps someone knows the math for this; alternatively, it would take a few minutes to test it with some made-up guess distributions. (Any takers?)