[maemo-community] App with highest app-karma on frontpage

[From: Aniello Del Sorbo]

2009/11/11 Alexey Zakhlestin <indeyets at gmail.com>:
>
> On 11.11.2009, at 18:27, Dave Neary wrote:
>
>> Hi,
>>
>> Alexey Zakhlestin wrote:
>>> http://maemo.org/downloads/score/OS2008/25/
>>> http://maemo.org/downloads/score/Maemo5/25/
>>
>> Looks good! Out of interest, where is app karma documented? I saw your
>> simulations of what the formula looked like, and just re-read the app
>> karma thread from August, but I'm afraid I didn't figure out what
>> formula we're using now for app karma.
>
> main formula:
>
> $rating = ($yesterday * 0.999)
>             + 0.1 * ($avg_d_this_week - $avg_d_last_week)
>             + 0.1 * ($avg_c_this_week - $avg_c_last_week)
>             + 0.1 * ($avg_v_this_week - $avg_v_last_week);
>
> d = downloads
> c = comments
> v = votes
>
> additionally, we use "fake" formula for apps which do not have enough
> stats (appeared less than 14 days ago):
>
> "100" on the first day
> and then each day "$yesterday + 0.001" if stats are better then
> yesterday and "$yesterday - 0.001" if stats are worse.
>
> this way, new apps will stay close to the base score with minimal
> fluctuations.
> after they have enough stats they will be recalculated using proper
> formula
>

Will the app-karma be retained when a new version of an already
present App comes along in Extras?

-- 
anidel
Sent from London, Eng, United Kingdom