I try to add new train data to an already trained model. In neural, I find that it can be trained by " UPDATE_WEIGHTES",however it doesn't work well. I want to recognize 0-9, use 180 samples train it, its ok. when I seperate samples to 5, train it by UPDATE_WEIGHTES 4times , its going so far.
I have tried Bayes, KNN, Neural. Now I don't understand what does the 'update' in train() used for. sorry for my poor english