Just a minor point of clarification - when I wrote this article, I had Bruce Heard's rough outline of the Bard as presented in Dragon Magazine in mind. 3E hadn't come out when this version of the Bard class was first developed.
Ratings Explanation
The following components make up a rating:
Ratings. The ratings that users enter
into this index are each averaged into the final rating with a weight of
between 0 and 4, with weight based on trust algorithms.
Reviews. Each review is averaged into the
final rating with a weight of 8. Sometimes reviews can skew high, but they
also display fan interest (or disdain) in a product.
Content. The average rating of each
content--before its own bayesian weight is inserted--is averaged into
the final rating. The weight of a content is equal to its own weight
divided by the number of contents, and divided again if it only
appears in a fraction of editions.
Bayesian Weight. A rating of 5.00 is inserted into the final rating with a weight
of 35. This is an arbitrary weighting of
the average rating that keeps things toward the center until they're
better rated.
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