"Hidden Representations are part of feature learning and represent the machine-readable data representations learned from a neural network's hidden layers. The output of an activated hidden node, or neuron, is used for classification or regression at the output layer, but the representation of the input data, regardless of later analysis, is called hidden representation.
Another the way to look at it is that the output from hidden layers in a neural network are just raw data. What the machine learns to do with this data, how they represent these features, is hidden representation".
https://deepai.org/machine-learning-glossary-and-terms/hidden-representation
This image is plate sculpture, derived from a sketch I did of my fathers face with coloured ovals drawn over. Following the hidden representation theme, I want to describe how my father would often hide his feelings. The plates represent a kind of armour shielding him from reality. The information is there but hidden from view. The model is a mock-up, and if I decide to proceed with it, I will use enamel paint rather than acrylic.
Mock Up of Shield Mask
Shield Mask with my Fathers picture superimposed