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Breaking captchas using torch

See blog https://deepmlblog.wordpress.com/2016/01/03/how-to-break-a-captcha-system/

  1. Run captcha.lua to run CNN without RNN SimpleCaptcha accuracy - 92%
  2. Run rmain.lua to run CNN with RNN SimpleCaptcha accuracy - 96%
  3. For seq to seq learning see RNN 6.ipynb accuracy - 50%