2009/2/20 Francisco José Fiuza Lima Júnior <[email protected]>: > Probably grade 2 might refer to 50% of chances to remember, and grade 3, > maybe 70%. Don't know about then, but 90% is absolutely more likely to be > grade 4. > I might be totally wrong, as I said, I'm not an expert, it's just some > thoughts and reflections.
Hi Francisco, I think you're making a leap of faith here - if you pick grade 2 and think "at this difficulty, I would probably forget the card half the time", that may feel reasonable, but it's not reasonable if there's no evidence. When you say "about to forget" you're thinking "50% chance to forget NOW", but I don't think this is right. If the algorithm was exactly (impossibly) correct in all its guesses, then "about to forget" would mean "100% likely to remember correctly NOW, but will forget SOON". So I think that seeing things as "2 = 50% likely to forget, 3 = 70%, etc" is meaningless - for example, how could you possibly know when you answer a card that you had a 50% chance to get it wrong or forget? All you know is that you forgot, or that you remembered and roughly how difficult it was for you to answer (which usually corresponds to how long you had to think, but varies from question to question anyway). That said, I'm not an expert either, so I could be completely wrong and you could be completely right on this :) > > I just think that, if I'm working on a card for maybe one year, I would > rather decrease the interval if I'm grading it 2, then to increase the > interval and risking forgetting it. This is sensible, but personally I don't worry too much about it, and if I get something wrong (that I think I really should have gotten right) I just accept the mistake and start on it again... if I really know it quite well, then I won't spend much time reviewing that card from scratch (and I can mark it 4 each time if it feels right - then the interval will quickly increase again). Ok, perhaps learning performance for that item will suffer slightly as you're being exposed to it more often than you should. However, my success rate on longer intervals is over 92% I think, and that's with relatively difficult material (English on front, Chinese phonetics and written characters on the back). Usually when I slip up on those items, it's a small mistake (like missing a stroke or getting a tone wrong), or maybe mistaking it for another (equivalent) character, rather than forgetting it completely. I would expect that it's the same for you, so maybe you're worrying a bit much about a something quite insignificant - a storm in a teacup. :D regards, Oisín --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mnemosyne-proj-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/mnemosyne-proj-users?hl=en -~----------~----~----~----~------~----~------~--~---
