Hi Omarmex (or Gaby),

There is a certain amount of training data required to train a model. Most techniques that only required small amount of data are pretty advanced. I am afraid this might be good for a beginner system. As I have mentioned in this forum to you multiple times (if I remembered it correctly, there was at least 3 occasions like this), I would recommend you to use the tutorial that was prepared by Evandron Gouvea.

http://www-2.cs.cmu.edu/~robust/Tutorial/

This will be good for you to start your first system.
Why don't you try it first?
(When I use word usually means I usually want to emphasize the word.)

Arthur