https://berketunc.me/blog/ Writing on AI research, and Embodied AI. en https://berketunc.me/blog/neural-networks/ https://berketunc.me/blog/neural-networks/ Sun, 09 Aug 2026 00:00:00 GMT A study-group walkthrough of how a feedforward neural network learns to recognize handwritten digits (MNIST dataset) using weighted connections, ReLU, softmax, cross-entropy loss, backpropagation, and gradient descent.