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I built a neural network from scratch in NumPy to learn ML — 99.75% training accuracy, 78.78% held-out accuracy. Here's what I learned.

I'm an engineer interested in embedded systems, FPGAs, and signal processing, and I've been trying to understand machine learning beyond just calling library functions. I built SignalDNA as an educational experiment: a fully connected neural network implemented in NumPy, trained to classify synthet…

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  1. 2026-10-22 04:25 · r/learnmachinelearning
    I built a neural network from scratch in NumPy to learn ML — 99.75% training accuracy, 78.78% held-out accuracy. Here's what I learned.

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