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I've been asked this several times, and I've asked it myself as well:
The BS-RAC is calculated somehow different from the project RAC.
I think one of the main reasons is the non-implementation of the RAC-decay on some projects.
Could you please include a paragraph in the FAQ about this? I'll translate it asap (at least as soon as becoming aware of it
)This seems to be the official definition of the RAC (from the inofficial Wiki):
Official formula:
So how is the Recent Average Credit computed? Each time new Credit granted, the following function is used to update the Recent Average Credit of the Computer, Participant, or Team:
RAC(new) = RAC(old)*d(t) + (1-d(t))*credit(new)
Where d(t) is the decay function, and t is the time (in seconds) since the last Recent Average Credit recalculation.
d(t) = e^(-ln(2)*t / 604800)
The Recent Average Credit for any Computer, Participant, or Team is calculated every time that Credit is added to that object. Please see also the example on the right.
RAC(new) = RAC(old)*d(t) + (1-d(t))*credit(new)
Where d(t) is the decay function, and t is the time (in seconds) since the last Recent Average Credit recalculation.
d(t) = e^(-ln(2)*t / 604800)
The Recent Average Credit for any Computer, Participant, or Team is calculated every time that Credit is added to that object. Please see also the example on the right.
Grüße vom Sänger
@Stacie: Something with certainty and confirmation that you are a human and not an alien.
