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load balancer

0.02MB. Updated 2015-09-11.


Checks amount of cards due and average ease of cards in ±X days of intended due date and schedules accordingly. Configuration options can be found in preferences. Here is a conversation where I accidentally was helpful and explained what the options do. 2014-01-10: fixed `KeyError: 'LBGIMinBefore'` 2013-12-22: ctrl-L to bring up window with debug output restore defaults button in deck config now works 2012-12-27: fixed calculating ease on days with no cards due 2012-12-24: idealIvl can be a float? weird 2012-12-22: updated to work with 2.0.4 2012-12-01: apply to cards going from lapsed to review 2012-11-28: better handling of siblings 2012-11-25: algorithm tweaking 2012-11-17: more uninitialized variables 2012-11-10: fixed divide by zero error 2012-11-07: algorithm tweaking graduating/easy interval modifiers in deck options 2012-11-06: new algorithm tooltips in preferences 2012-11-02: added a graph fixed bug where new cards did not have an ease set 2012-11-01: New algorithm for ease balancing Add option for minimum amount of days to use fixed bug where variables weren't getting initialized (Nice idea! However, I got an error.) 2012-10-31: implemented ease balancing as mentioned in "Good idea, but..." added preference dialog I can be contacted at  jake [dot] probst [at] gmail [dot] com Also a forum. And thanks to Dariusz Laska for his help in tweaking/testing/refining the balancing algorithm. 2014-12-22: So the AnkiDroid people don't like modifications like this and provide no way to do it proper so I`ll maintain a branch with it: ankidroid issue tracker:


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Probably the most useful Anki plugin
Posted on 2016-05-11

This is a silent plugin, you install it and it will work by istself in the background.

It works particularly well if you have a lots of cards, it nicely spreads the load after a while and avoids having few cards one day and a lot the next one!

Instead of slightly randomising the next time a card will be shown, it searches for a day near the due date where the workload is low and put it there. It is a very clever addition that does not change the Anki algorithm at all, just makes an intelligent decision instead of relying on randomness.

Heartily recommended!

Good idea, BUT...
Posted on 2015-02-02

The load balancer seems like a good idea, but there is no documentation of the settings, and worse still, it adds a meaningless graph called Difficulty Forecast; I have no idea what information that graph is showing. Please either explain it (and explain the settings), or delete it (maybe, if you want to keep the graph, make it optional?)

Seems to work, but no documentation
Posted on 2014-06-07

Seems like a great idea, but I'd like to know more about what it's doing before having it go to work on all of my cards (just as someone mentioned below, the options aren't incredibly intuitive)

Nearly perfect, needs proper settings explanation
Posted on 2014-04-18

This is really great concept, as many people have said already.

I think the only thing it misses is a proper explanation of settings.
Maybe write a Help/FAQ of some kind with each setting explained (I still don't know what the Workload:Ease fields do) with the values recommended for different learners and put them in the plugin/somewhere here?

Posted on 2014-01-07

Same problem as the two reviews underneath me. Fix it and I'll start using it again.

crash info
Posted on 2014-01-05

Traceback (most recent call last):
File "aqt/webview.pyc", line 21, in link
File "aqt/reviewer.pyc", line 315, in _linkHandler
File "aqt/reviewer.pyc", line 260, in _answerCard
File "anki/sched.pyc", line 84, in answerCard
File "anki/sched.pyc", line 537, in _answerLrnCard
File "/Users/myname/Documents/Anki/addons/", line 156, in NEW_rescheduleAsRev
OLD_rescheduleAsRev(self, card, conf, early)
File "anki/sched.pyc", line 608, in _rescheduleAsRev
File "anki/sched.pyc", line 664, in _rescheduleNew
File "anki/sched.pyc", line 658, in _graduatingIvl
File "/Users/myname/Documents/Anki/addons/", line 60, in NEW_adjRevIvl
if -1 not in [nc["LBGIMinBefore"], nc["LBGIMinAfter"]]:
KeyError: 'LBGIMinBefore'

(user name altered by poster)

Solves Many Problems In a Single Instance
Posted on 2013-06-11

Anki has a few bad habits,
Even with the new algorithms.

Load spikes is a significant problem that has always plagued anki.

Looking ahead in your schedule and seeing a large tower 4 days from now, steadily growing each day is not fun, and can be detrimental to progress.

In the past I had tried reviewing ahead with specially set featured decks.
The problem with this is that your interval is hardly changed when you review ahead. You end up in the long run merely pushing back a tower that will come back even larger. Cards which were due in 7 days are due again in 7 days, 3 in 3, 5 in 5, and don't forget you are adding new cards everyday. Sure the cards are easier but random recall errors occur, and the chances of this increase with the amount of cards you review in a day.

With this program you can set it to put cards a bit earlier or later (depending on ease) and even out the prospective workload.

It has not negatively affected by daily correct% (in fact it has raised it)
This is, quite frankly, an essential add-on, and should actually be incorporated into anki's programing.

get rid of load spikes
Posted on 2013-01-19

According to my statistic graph forecast, in 12 days there are 80 mature cards that become due that day; when normally it is around 20. In 28 days, I have a similar "tower" of mature cards becoming due on that very day. Somehow, the default Anki scheduler produces load spikes, even in the long run with mature cards that have several months intervals already.

With this addon, the due forecast becomes perfectly even. You can customize its behaviour, e.g. how far to move cards into the past or future (personally, I prefer seeing cards a little earlier, so I reduced the future range to 1 day). The only feature that is missing is that it doesn't flatten the load spikes that are already there. But once you get past them it's perfect.

Thanks for this.

Worked great until 2.0.4 - I look forwad to it working again!
Posted on 2013-01-13

I have been using this and LOVING IT. Since I loaded 2.0.4 it now crashes in a few ways.

I love it so much I wish there was a way to go back to Anki 2.0.3! Unfortunately I 'ran' when installing, I should have save-as's ANKI so that I could wipe out 2.0.4 and go back to 2.0.3 to use this add on.

One error in 2.0.4:
Traceback (most recent call last):
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/aqt.webview", line 21, in link
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/aqt.reviewer", line 298, in _linkHandler
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/aqt.reviewer", line 247, in _answerCard
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/anki.sched", line 77, in answerCard
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/anki.sched", line 785, in _answerRevCard
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/anki.sched", line 831, in _rescheduleRev
File "C:\cygwin\home\dae\win\build\pyi.win32\anki\outPYZ1.pyz/anki.sched", line 909, in _updateRevIvl
File "C:\Users\Peter\Documents\Anki\addons\", line 107, in NEW_adjRevIvl
rdiff, compdiff))
TypeError: 'NoneType' object is not callable

Useful tool to reduce daily load
Posted on 2012-11-02

It is a tool which has potential to reduce daily load and improve learning performance. It can take into account both due reviews and average easiness factors in order to reduce daily load. Thanks!