Node Connectivity
There are 174 nodes that can be used as predessesor
for a node with an input port of type 
org.knime.core.node.port.AbstractPortObject.
LRN Layer (legacy)
Local Response Normalization layer.
Pooling Layer (legacy)
Pooling layer.
RBM Layer (legacy) Deprecated
Restricted Boltzmann Machine layer.
AutoEncoder Layer (legacy)
Denoising AutoEncoder Layer
Dense Layer (legacy)
Fully connected layer.
DL4J Model Initializer (legacy)
Initialiser for the deep learning model.
DL4J Feedforward Learner (Classification) (legacy)
Learner for Feedforward Deep Learning Models.
DL4J Feedforward Learner (Regression) (legacy)
Regression Learner for Feedforward Deep Learning Models.
DL4J Feedforward Learner (Pretraining) (legacy)
Learner for Feedforward Deep Learning Models.
Word Vector Learner (legacy) Deprecated
Learn a Word Vector Model on labelled or unlabelled documents.