Reinforcement Learning and Deep RL Python Theory and Projects - DNN Learning Rate

The video tutorial discusses the concept of learning rate, also known as step size, in the context of training deep neural networks. It explains the challenges of selecting an optimal step size, such as overshooting and the need for many iterations to reach a minimum. The tutorial covers various heuristics and scheduling methods to adjust the learning rate, emphasizing that a fixed rate is rarely effective. It highlights the importance of tuning the learning rate through validation and mentions that while schedulers exist, they do not guarantee optimal results. The video concludes with best practices for learning rate adjustment and hints at further topics to be covered in the next video.

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