In addition to edge inputs, a cell also takes the hidden states of its incoming nodes and outgoing nodes during a state transition.
the states of all incoming nodes and outgoing nodes are summed up before being passed to the cell and gate nodes: Based on the above definitions of j , the state transition from g t 1 to g t , as repre-sented by h j t , can be defined as: where i j t , o j t and f j t are the input, output and forget gates mentioned earlier.