Re: [FFmpeg-devel] Democratization work in progress draft v2

[Soft Works <softworkz-at-hotmail.com@ffmpeg.org>]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces@ffmpeg.org> On Behalf Of
> James Almer
> Sent: Friday, January 31, 2025 4:45 PM
> To: ffmpeg-devel@ffmpeg.org
> Subject: Re: [FFmpeg-devel] Democratization work in progress draft v2
> 
> > Past involvement, including long-past involvement, is not only
> past, it
> > is both indication of knowledge about the project and prediction of
> > future involvement.
> >
> > For that reason, I believe that if this plan goes forward, it
> should
> > include all past involvement, but possibly with the condition that
> the
> > involvement continues presently.

How about a quadratic attenuation of past commit counts, so that older commits count less than more recent ones?

Here are some examples with different base values:

+------+-----+-----------------------------------+
| Year | Y-T |                Base               |
+------+-----+------+-------+------+------+------+
|      |     | 0.85 | 0.825 |  0.8 | 0.75 |  0.7 |
+------+-----+------+-------+------+------+------+
| 2023 |   0 | 100% |  100% | 100% | 100% | 100% |
+------+-----+------+-------+------+------+------+
| 2022 |  -1 |  85% |   83% |  80% |  75% |  70% |
+------+-----+------+-------+------+------+------+
| 2021 |  -2 |  72% |   68% |  64% |  56% |  49% |
+------+-----+------+-------+------+------+------+
| 2020 |  -3 |  61% |   56% |  51% |  42% |  34% |
+------+-----+------+-------+------+------+------+
| 2019 |  -4 |  52% |   46% |  41% |  32% |  24% |
+------+-----+------+-------+------+------+------+
| 2018 |  -5 |  44% |   38% |  33% |  24% |  17% |
+------+-----+------+-------+------+------+------+
| 2017 |  -6 |  38% |   32% |  26% |  18% |  12% |
+------+-----+------+-------+------+------+------+
| 2016 |  -7 |  32% |   26% |  21% |  13% |   8% |
+------+-----+------+-------+------+------+------+
| 2015 |  -8 |  27% |   21% |  17% |  10% |   6% |
+------+-----+------+-------+------+------+------+
| 2014 |  -9 |  23% |   18% |  13% |   8% |   4% |
+------+-----+------+-------+------+------+------+
| 2013 | -10 |  20% |   15% |  11% |   6% |   3% |
+------+-----+------+-------+------+------+------+
| 2012 | -11 |  17% |   12% |   9% |   4% |   2% |
+------+-----+------+-------+------+------+------+
| 2011 | -12 |  14% |   10% |   7% |   3% |   1% |
+------+-----+------+-------+------+------+------+
| 2010 | -13 |  12% |    8% |   5% |   2% |   1% |
+------+-----+------+-------+------+------+------+
| 2009 | -14 |  10% |    7% |   4% |   2% |   1% |
+------+-----+------+-------+------+------+------+
| 2008 | -15 |   9% |    6% |   4% |   1% |   0% |
+------+-----+------+-------+------+------+------+
| 2007 | -16 |   7% |    5% |   3% |   1% |   0% |
+------+-----+------+-------+------+------+------+
| 2006 | -17 |   6% |    4% |   2% |   1% |   0% |
+------+-----+------+-------+------+------+------+
| 2005 | -18 |   5% |    3% |   2% |   1% |   0% |
+------+-----+------+-------+------+------+------+
| 2004 | -19 |   5% |    3% |   1% |   0% |   0% |
+------+-----+------+-------+------+------+------+
| 2003 | -20 |   4% |    2% |   1% |   0% |   0% |
+------+-----+------+-------+------+------+------+

sw
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