figure advanced deep-learning best practices tensorboardinteractive word-embedding visualizat ion the graphs tab shows an interactive visualization of the graph of low-level tensorflow operations underlying your keras model (see figure as you can seethere' lot more going on than you would expect the model you just built may look simple when defined in keras-- small stack of basic layers--but under the hoodyou need to construct fairly complex graph structure to make it work lot of it is related to the gradient-descent process this complexity differential between what you see and what you're manipulating is the key motivation for using keras as your way of building modelsinstead of working with raw tensorflow to define everything from scratch keras makes your workflow dramatically simpler licensed to