Description: Layer-wise learning rate is a strategy used in the training of neural networks that allows assigning different learning rates to each layer of the network. This technique is based on the idea that the layers of a neural network can have different levels of complexity and, therefore, can benefit from adjustments in the learning rate that adapt to their specific characteristics. For example, the layers closest to the input, which typically learn more general features, may require a higher learning rate to quickly adapt to patterns in the data. In contrast, deeper layers, which capture more abstract and complex features, may need a lower learning rate to avoid oscillations and ensure stable convergence. This strategy not only improves the efficiency of the training process but can also lead to better overall model performance, as it allows for finer optimization of the network’s parameters. The implementation of layer-wise learning rates can be particularly useful in deep architectures, where the interaction between layers can be complex and where a uniform approach may not be the most effective.
