Why Quadratic Cost Functions Are Ineffective in Neural Network Training

Machine Learning Tech Brief By HackerNoon

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Explore why quadratic cost functions hinder neural network training and how cross-entropy improves learning efficiency in deep learning models.
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One of the most common question asked during deep learning knowledge interviews is - “Why can’t we use a quadratic cost function to train a Neural Network?**” We will delve deep into the answer for that. There will be a lot of Math involved but nothing crazy! and I will keep things simple yet precise.