기본자료
The Unreasonable Effectiveness of Recurrent Neural Networks
http://karpathy.github.io/2015/05/21/rnn-effectiveness/
Multi-layer Recurrent Neural Networks (LSTM, GRU, RNN) for character-level language models in Torch
https://github.com/karpathy/char-rnn
Recurrent Neural Networks in Tensorflow II
https://r2rt.com/recurrent-neural-networks-in-tensorflow-ii.html
Multi-layer Recurrent Neural Networks (LSTM, RNN) for character-level language models in Python using Tensorflow
https://github.com/sherjilozair/char-rnn-tensorflow