This symbol represents the activation of the \(i\)-th neuron in the \(\kappa\)-th layer of a multi-layer perceptron.
This symbol represents the activation of the \(i\)-th neuron in the \(\kappa\)-th layer of a multi-layer perception. It represents a scalar value.
The symbol, \(x^\kappa_i\), represents the activation of the \(i\)-th neuron in the \(\kappa\)-th layer of a multi-layer perception. It represents a scalar value:
\[x^\kappa_i \in \mathbb{R}\]