Data Science and Machine Learning (Theory and Projects) A to Z - DNN and Deep Learning Basics: DNN Gradient Descent Exer

The video tutorial explains why the negative gradient direction is chosen for minimizing loss functions. It discusses the mathematical proof that shows the negative gradient is the most effective direction for rapid minimization. The tutorial also highlights the importance of the learning rate in gradient descent, noting that while a small learning rate ensures guaranteed decay, practical applications may require larger steps to speed up the process. The video concludes with a discussion on optimizing learning rates to improve the efficiency of gradient descent algorithms.

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