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Date: 2011-10-05 01:06 pm (UTC)The prior, likelihood, posterior approach also explains why the same set of data can be taken as evidence for utterly different conclusions - eg. tea partyists and liberals. They're working from utterly different priors, which are there no matter what. Even if you're a frequentist.
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Date: 2011-10-05 02:05 pm (UTC)Where did that get its prior? :-)
here there is good reason for a prior (a previous set of data for example), or where a variety of uniform priors don't affect the posterior, then I don't have a problem
Absolutely -- in a symmetrical situation (the ball is under one of three cups) a uniform prior is perfect.
They're working from utterly different priors, which are there no matter what. Even if you're a frequentist.
Sure -- but having different outcomes from the same set of data (depending on prior) would not happen in frequentist analysis (and, a good Bayesian would say that the conclusions are not meaningful unless there was a reason to prefer one prior).
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Date: 2011-10-06 02:34 pm (UTC)http://telescoper.wordpress.com/2011/10/06/bayes-in-the-dock/#entry
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Date: 2011-10-06 02:40 pm (UTC)My reading of the original redacted court document was that it was Bayesian statistics, not Bayes Theorem which the judge ruled against. The Guardian article muddies the water completely by using the two interchangably. The original court document is heavily redacted so it's unclear.
If the Prof you link to is right, it's a stupid ruling but I *think* he's working from the Guardian article not the court document. The rest of his column is interesting though.
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Date: 2011-10-06 11:19 pm (UTC)no subject
Date: 2011-10-06 02:54 pm (UTC)