It seems in english speaking country there is a need for flashcard system too.

I want to share my view on "flashcard" app.

I am a chinese coder, who love learning and reading english. To help people learn english words in long term(for school Exam,SAT,GRE, or just for work), I have made two web app.

1. jianbing.org （running for 2years, shutting down for bad UX, 20K users） 2. http://rollingword.com ( alpha, Launching, without rollingAlgorithm shipped)

To make things simple, I have a simple philosophy ： Our brain is a distribute network system just like DNS! so our memo brain have two parts 1. Area like Local DNS (8.8.8.8) , which is fast(fast CPU) but memo unit have TTL (time to live). It just a cahce with small latency. 2. Area like Authority DNS( Like Router53) , slow CPU, Big database hard drive.It like computing strategy, coding, Learning.

We can not remember a word because it is not in the Local DNS(maybe in the Authority DNS area but it is a so slow CPU), or it is expired.

So our algorithm(calling rollingAlgorithm,which make word/cards rolling ) is to copy a Local DNS ttl table by collecting user test feedback;

how to test?

first user can get a list of cards/words， , by rollingAlgorithm(based on Actuarial Science, which used to calculate people life time).

the learning and reviewing is in a row. we show user a "pile" of card ,if user hit his cache , user click "Learn",we say he remember the word , send back a high score to rollingAlgorithm;

if cache missed,user click "fail", he will relearn the word and the word is queued in the row and will come up again (if missed again,come up again),send back a low score to rollingAlgorithm;

we collect user memo performance while they are learning!

we make your memory rolling, at best performance.

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user:	frannk
created:	September 10, 2012
karma:	1