A question about RAC

somebodley
somebodley
Joined: 3 Mar 06
Posts: 119
Credit: 180339
RAC: 0

Ray was quite right ... My

Ray was quite right ...
My RAC has now jumped right forward to 1,225
It has done so as other WU's in my "Pending" file have been validated and the 'time element' taken into consideration.
I am happy ...
:-)))

[B@H] Ray
[B@H] Ray
Joined: 4 Jun 05
Posts: 621
Credit: 49583
RAC: 0

RE: Ray was quite right

Message 38835 in response to message 38834

Quote:
Ray was quite right ...
My RAC has now jumped right forward to 1,225
It has done so as other WU's in my "Pending" file have been validated and the 'time element' taken into consideration.
I am happy ...
:-)))


That was like having RAC put away in the bank. At least you did not have to wait 3 Mo. as with SETI Beta to get the interest on them.


Try the Pizza@Home project, good crunching.

Aurum
Aurum
Joined: 12 Jul 17
Posts: 77
Credit: 3412397040
RAC: 436

How many days are used in the

How many days are used in the RAC calculation???

archae86
archae86
Joined: 6 Dec 05
Posts: 3157
Credit: 7229498209
RAC: 1151838

Aurum wrote:How many days are

Aurum wrote:
How many days are used in the RAC calculation???

Infinite.  In other words, all of them since the beginning.  But the older values count less and less.

RAC is fundamentally an exponentially weighted forgetting function.  It only needs to preserve two values from the last calculation in order to be able to calculate the new RAC when there is a new input.  The two saved values are just a time stamp and the RAC at that time.

It is a close cousin of an exponentially weighted moving average, which was well regarded for many process monitoring purposes by the professional statisticians back when I worked for Ye Olde Microprocessor Werkes.

mikey
mikey
Joined: 22 Jan 05
Posts: 12702
Credit: 1839106411
RAC: 3622

Aurum wrote:How many days are

Aurum wrote:
How many days are used in the RAC calculation???

According to a post from 2015:

[url]https://einsteinathome.org/content/how-do-we-calculate-rac-dummies#comment-133367[/url]

From the Boinc Wiki:

[url]https://en.wikipedia.org/wiki/BOINC_Credit_System[/url]

 

 

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