Michael, great post! I agree completely.

I'll see if I find a good place to place this on our website (with credit to you of course).

Peter

On 11/20/2012 03:01 PM, Michael Campbell wrote:
If you don't want to deal with the grading continuum, don't.  Grade
everything a 0 or 1 (if you don't know it) and a 4 if you do.   Nothing
bad will happen; you still get things you know less often and things you
forget more often.  That's basically Leitner anyway.

This isn't directed at you specifically, but your post made me think of
it.  Having used mnemo a few years now and watching this mailing list
pretty closely I've seen an idea surface over and over again; and that
is what happens if I do something outside the "perfect" parameters; the
2 biggest being "what if I miss days?", "oh my, I've graded a card
wrong; what do I do?"   The answer is, "nothing".  It's no big deal.
  Let it go.  If you graded it too HIGH, you may forget it next time,
which will be taken care of by your 0 or 1 grade when you next see it.
  If you grade it too low, you'll see it earlier than you would have
otherwise, and what's the big deal?    And for missed days, just do what
you can when you can.  It can be shown that assuming you remember at
least some of the time from day to day, you can do 1 card a day and
*eventually* get through an arbitrarily large stack.

Ones memory is such a fluid dynamic thing that trying to curve-fit SM2
(or any algorithm) to it just isn't possible, or beneficial.  Your
memory may kick ass today, and absolute shite tomorrow; no algorithm can
hope to model that.  And each person is different too.  I think these
fine-tuning exercises I see people attempting, while perhaps fun, are of
little to no actual benefit.  The benefit comes from doing, not
tweaking.  I'm sure Peter or Gwern have some studies at hand that might
have more information.

So, make a best effort on grading, and try to do it daily or at least as
often as you can, and it'll work fine.  This isn't an optimization
exercise, it's just meant to reduce work that may not be necessary.


On Tue, Nov 20, 2012 at 3:40 AM, <[email protected]
<mailto:[email protected]>> wrote:

    Thanks for all the replies. I will do some more testing to see if I
    like the SM2 stuff. In my head I really think I would much prefer
    the leitner. Probably mainly due to there having less ambiguity.
    (You either know it or you don't) It becomes much too emotionally
    taxing, (for some individuals) to properly categories it as a
    1,2,3,4, or 5 card. But that is what SM2 is so I might as well give
    it a shot.  ^_^

    Also thanks for that little trick on getting tomorrow's cards done.
    A bit tedious but it does the job.

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