Neuronales Netz, bei dem Eingaben einer aktuellen Schicht in eine voherige Schicht eingespeist werden.
ETSI GR ENI 004 ANN that is connected between nodes form a directed graph across a temporal sequence.
Note: RNNs contain cyclic connections that make them effective in storing history and state. This is done by using feedback loops in the processing of an output.
ISO/IEC DIS 22989 neural network (3.3.7) in which outputs from both the previous layer and the previous processing step are fed into the current layer