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2025-12-17 15:01:01 -

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Building a neural network in Excel might sound like a party trick, but it's actually one of the best ways to truly understand what's happening under the hood. This walkthrough makes forward and backprop tangible in a way that Python abstractions often obscure. Great resource if you've ever wanted to demystify the "black box" without diving into code.

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The Machine Learning “Advent Calendar” Day 17: Neural Network Regressor in Excel

Neural networks often feel like black boxes. In this article, we build a neural network regressor from scratch using only Excel formulas. By making every step explicit, from forward propagation to backpropagation, we show how a neural network learns to approximate non-linear functions with just a handful of parameters. The post The Machine Learning “Advent Calendar” Day 17: Neural Network Regressor in Excel appeared first on Towards Data Science.

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