Ki — Reference

Card Format

q // aquestion and answer
q {{a}}cloze deletion — blank shown as [...]
[topic]group cards under a topic
[a/b]nested topics

Symbols

study this topic
>folder with subfolders
/leaf folder (direct cards)
ease score ≥ 0.78 — good mastery
·ease score 0.62 – 0.78 — normal
!ease score < 0.62 — needs attention
0.74ease score shown next to dot (topic mastery)

Spaced Repetition

due when: h_elapsed ≥ ivl
new card: ivl = 4h
fail interval: ivl = max(0.5h, ivl × 0.2)
other interval: ivl = ivl × (1 + 1.4 × score × (0.6 + ease) × decay) × b
decay: (4 / ivl)^0.154
timing bonus: b = min(1.3, 1 + 0.15 × (t_elapsed/ivl − 1))
ease: asymmetric mean reversion to 0.70 on each review
failscore 0 — ease −0.15, ivl shrinks to 20%
hardscore 0.5 — ease −0.06
goodscore 0.8 — ease +0.06
easyscore 1.0 — ease +0.08

Keyboard Shortcuts

Space / lreveal answer
a s d ffail / hard / good / easy
jskip card / move down
kmove up (browse)
h / Escback / exit study
?this page