AI from scratch
My first neural net Like everybody else I've been playing a lot with ChatGPT recently and I'm gobsmacked by how good it is! This has led me to start researching how exactly these things work. In particular I wanted to understand how neural nets - a core component of the technology - are trained. Running a neural net is simple. The neural net consists of layers of nodes connected by weights and biases. The first layer is an input layer and setting the activation levels of each node in that layer causes the next layer to adopt values determined by the weights and biases. The second layer determines the activation levels in the next layer and so on until the final layer, which is interpreted as the output.