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

Dr. Owns

December 17, 2025

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.

​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.  Machine Learning, Artificial Intelligence, Backpropagation, Data Science, Excel, Neural Network Towards Data ScienceRead More

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Dr. Owns

December 17, 2025

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