-
-
Notifications
You must be signed in to change notification settings - Fork 153
Compare Anki's built in scheduler and FSRS
For simplicity, the comparison only focuses on the intervals given in different rating sequences. The ratings in (re)learning steps will be ignored, only consider the first rating of new cards.
The default parameters of FSRS for comparison:
var w = [0.4, 0.6, 2.4, 5.8, 4.93, 0.94, 0.86, 0.01, 1.49, 0.14, 0.94, 2.18, 0.05, 0.34, 1.26, 0.29, 2.61];Rating sequence: 1,3,3,3,3,3,3,3,3,3
Anki's intervals: 1d,3d,8d,20d,1.7m,4.2m,10.4m,2.1y,5.4y,13.4y
FSRS's intervals: 1d,2d,6d,14d,1.1m,2.3m,4.7m,9.1m,1.4y,2.5y
Rating sequence: 2,3,3,3,3,3,3,3,3,3
Anki's intervals: 1d,3d,8d,20d,1.7m,4.2m,10.4m,2.1y,5.4y,13.4y
FSRS's intervals: 1d,3d,9d,24d,1.9m,4.4m,9.5m,1.6y,3.1y,5.7y
Rating sequence: 3,3,3,3,3,3,3,3,3,3
Anki's intervals: 1d,3d,8d,20d,1.7m,4.2m,10.4m,2.1y,5.4y,13.4y
FSRS's intervals: 2d,7d,21d,1.9m,4.8m,11.2m,2.0y,4.1y,8.1y,15.0y
Rating sequence: 4,3,3,3,3,3,3,3,3,3
Anki's intervals: 4d,10d,25d,2.1m,5.3m,1.1y,2.7y,6.8y,16.9y,42.3y
FSRS's intervals: 6d,20d,2.0m,5.5m,1.1y,2.6y,5.6y,11.5y,22.3y,41.4y
My representative paper at ACM KDD and IEEE TKDE: A Stochastic Shortest Path Algorithm for Optimizing Spaced Repetition Scheduling [中文版] & Optimizing Spaced Repetition Schedule by Capturing the Dynamics of Memory [中文版]
My fantastic research experience on spaced repetition algorithm: How did I publish a paper in ACMKDD as an undergraduate?
The largest open-source datasets on spaced repetition with time-series features: open-spaced-repetition/FSRS-Anki-20k & open-spaced-repetition/anki-revlogs-10k
FSRS is an independent open-source project driven by its community. We are grateful for the support from organizations like 墨墨背单词 (MaiMemo Inc.), who champion open source by enabling core contributors like Jarrett Ye to invest time and expertise into FSRS. This collaboration helps ensure FSRS remains a leading-edge, freely available spaced repetition algorithm for everyone.