title: LSTM - Jürgen Schmidhuber & Felix Ger approach
body: <p>I'm reading the thesis of Felix Ger and I'd like to know how can I spot in  a simple keras implementation the next part of this thesis : "... Previous tasks already required the LSTM network to act upon events that occurred 50 discrete time steps ago, independently of what appened over the intervenin 49 steps . Right before the critical moment, however,  there was a helpful "marker" input informing the network that its next action would be crucial. ..." </p>
  
  <p>what does he mean there was a helpful "marker" input informing the network ? ... Which "marker" input was mentioned before that chapter ?</p>
  
  <p>Thanks in advance.</p>
  
  <p>PS. If you consider that this thesis is not ok to understand LSTM please tell me.</p>