input_gate
The descriptor of the input gate, which uses default sigmoid activation.
Declaration
var input_gate: BNNSLSTMGateDescriptorDiscussion
Use C style multidimensional array notation to order the memory pointers as [ num_layers ][num_directions][ hidden_size ][ input_size / hidden_size ].
If lstm_flags includes BNNSLayerFlagsLSTMBidirectional, BNNS defines num_directions as 2, or otherwise 1.