🧠 What Are Neural Networks? At the heart of deep learning lies the neural network—a mathematical model inspired by the human brain’s structure. These networks are made up of layers of artificial neurons that pass information from one layer to the next. Each neuron receives input, performs a weighted computation, and passes it to the next layer through an activation function. Neural networks are particularly well-suited to learning non-linear relationships from data. They allow machines to detect intricate patterns in images, audio, or text—without explicitly being programmed for the task. A basic neural network includes an input layer, one or…