diff options
author | Dessalines <happydooby@gmail.com> | 2019-04-20 16:47:23 -0700 |
---|---|---|
committer | Dessalines <happydooby@gmail.com> | 2019-04-20 16:47:23 -0700 |
commit | 93a512b7a16bba3b399cd78003995fab694139a9 (patch) | |
tree | 152a4f386fe57fd28063e34a3910f665e3c3ee82 /docs | |
parent | f8aa7cf0c00ce61222b33fd322c36745d4e1e5e7 (diff) |
Adding negative score fix
- Fixes #84.
- Fixing unit tests.
Diffstat (limited to 'docs')
-rw-r--r-- | docs/ranking.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/ranking.md b/docs/ranking.md index f55a1284..34348c30 100644 --- a/docs/ranking.md +++ b/docs/ranking.md @@ -12,14 +12,14 @@ The [Hacker New's ranking algorithm](https://medium.com/hacking-and-gonzo/how-ha ## My Algorithm ``` -Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity +Rank = ScaleFactor * sign(3 + Score) * log(abs(3 + Score)) / (Time + 2)^Gravity Score = Upvotes - Downvotes Time = time since submission (in hours) Gravity = Decay gravity, 1.8 is default ``` -- Add 1 to the score, so that the standard new comment score of +1 will be affected by time decay. Otherwise all new comments would stay at zero, near the bottom. +- Add 3 to the score, so that even minimally downvoted comments will be affected by time decay. Otherwise all new comments would stay at zero, near the bottom. - The sign and abs of the score are necessary for dealing with the log of negative scores. - A scale factor of 10k gets the rank in integer form. |