What is the role of gradient clipping technique in Torch?

Gradient clipping technique plays a role in limiting the size of gradients in deep learning, preventing the problem of gradient explosion. When training neural networks, gradients usually accumulate continuously during the process of backpropagation, causing the gradient values to become very large and leading to instability in network training. The gradient clipping technique can restrict the size of gradients, prevent the problem of gradient explosion, and improve the stability and convergence speed of training.