Last Updated on October 15, 2025 by Editorial Team Author(s): Amna Sabahat Originally published on Towards AI. You’ve cleaned your data, handled missing values, and are ready to build a powerful machine learning model. But there’s one critical step left: feature scaling. If you’ve ever wondered why your K-Nearest Neighbors model performs poorly or your Neural Network takes forever to train, unscaled data is likely the culprit. In this comprehensive guide, we’ll dive deep into Z-Score ...
