This symbol represents the state of the input gate of the LSTM.
This symbol represents the state of the input gate of the Long Short-Term Memory block. It stands for a vector of real values.
The symbol, \(g^\text{input}\), represents the state of the input neuron to the Long Short-Term Memory block. It stands for a vector of real values. It is typically used with a related timestep, e.g. \(g^\text{input}(n+1)\) represents the state of the input neuron at time \(n\).