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Diffstat (limited to 'docs/ranking.md')
| -rw-r--r-- | docs/ranking.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/docs/ranking.md b/docs/ranking.md index 34348c30..608b5484 100644 --- a/docs/ranking.md +++ b/docs/ranking.md @@ -12,14 +12,15 @@ The [Hacker New's ranking algorithm](https://medium.com/hacking-and-gonzo/how-ha ## My Algorithm ``` -Rank = ScaleFactor * sign(3 + Score) * log(abs(3 + Score)) / (Time + 2)^Gravity +Rank = ScaleFactor * log(Max(1, 3 + Score)) / (Time + 2)^Gravity Score = Upvotes - Downvotes Time = time since submission (in hours) Gravity = Decay gravity, 1.8 is default ``` -- 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. +- Use Max(1, score) to make sure all comments are affected by time decay. +- Add 3 to the score, so that everything that has less than 3 downvotes will seem new. 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. |