GitHub/Anki
1
0
Fork 0
mirror of https://github.com/ankitects/anki.git synced 2025-09-24 08:46:37 -04:00
Code Issues Projects Releases Packages 1 Wiki Activity Actions

add forgetting index adj; thanks to adam mesha for the inspiration

Browse source
This commit is contained in:
Damien Elmes 2011-11-15 19:15:12 +09:00
parent 58c56c433a
commit 16ecfe4097
2 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
anki/groups.py
View file

@ -71,7 +71,7 @@ defaultConf = {
'ease4': 1.3, 'ease4': 1.3,
'fuzz': 0.05, 'fuzz': 0.05,
'minSpace': 1, 'minSpace': 1,
'fi': 0.1, 'fi': [0.1, 0.1],
}, },
'maxTaken': 60, 'maxTaken': 60,
'mod': 0, 'mod': 0,

8
anki/sched.py
View file

@ -2,7 +2,7 @@
# Copyright: Damien Elmes <anki@ichi2.net> # Copyright: Damien Elmes <anki@ichi2.net>
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html # License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
import time, datetime, simplejson, random, itertools import time, datetime, simplejson, random, itertools, math
from operator import itemgetter from operator import itemgetter
from heapq import * from heapq import *
#from anki.cards import Card #from anki.cards import Card
@ -581,9 +581,15 @@ gid in %s and queue = 2 and due <= :lim %s limit %d""" % (
interval = (card.ivl + delay/2) * fct interval = (card.ivl + delay/2) * fct
elif ease == 4: elif ease == 4:
interval = (card.ivl + delay) * fct * conf['rev']['ease4'] interval = (card.ivl + delay) * fct * conf['rev']['ease4']
# apply forgetting index transform
interval = self._ivlForFI(conf, interval)
# must be at least one day greater than previous interval; two if easy # must be at least one day greater than previous interval; two if easy
return max(card.ivl + (2 if ease==4 else 1), int(interval)) return max(card.ivl + (2 if ease==4 else 1), int(interval))
def _ivlForFI(self, conf, ivl):
new, old = conf['rev']['fi']
return ivl * math.log(1-new) / math.log(1-old)
def _daysLate(self, card): def _daysLate(self, card):
"Number of days later than scheduled." "Number of days later than scheduled."
return max(0, self.today - card.due) return max(0, self.today - card.due)