• This is my personal implementation of LSTM in Caffe with minimal modifications.
  
• The official Caffe is going to support LSTM/RNN (not my code).
  
• See the following link for the details LSTM Pull Request
  

An example code is in /examples/lstm_sequence/.
In this code, LSTM network is trained to generate a predefined sequence without any inputs.
This experiment was introduced by Clockwork RNN.
Four different LSTM networks and shell scripts(.sh) for training are provided.
Each script generates a log file containing the predicted sequence and the true sequence.
You can use plot_result.m to visualize the result.
The result of four LSTM networks will be as follows:

• 1-layer LSTM with 15 hidden units for short sequence
• 1-layer LSTM with 50 hidden units for long sequence
• 3-layer deep LSTM with 7 hidden units for short sequence
• 3-layer deep LSTM with 23 hidden units for long sequence