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sangiro

True Bayesian Estimate for DZ Rankings

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OK - I know not everyone will find this interesting but I'm sure at least Kallend and Billvon may appreciate it... :P

I've changed the ranking of DZs to use a true Bayesian estimate based on the user reviews a DZ received. In the past the DZs were ranked by number of outgoing hits, or number of reviews or average review rating per DZ.

This formula normalizes scores, that is it pulls the average review ranking for a DZ to the mean of all the reviews for all DZs if the number of reviews for the particular DZ is not well above the minimum number of reviews required to be considered for the list. In other words, if a particular DZ has only a few reviews above the minimum required reviews to be listed in the top 10, the average ranking is decreased a little if it is above the mean, or increased a little if it is below the mean in accordance with the normal distribution rule of statistics.

See the formula, an example and a better explanation here.

You can see the current Top 10 DZ's based on user reviews on the Dropzone Database main page and a longer list on this page. :)
I'm planning to extend this to gear and articles as well.
Safe swoops
Sangiro

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