Implementing a Softmax Regression Model and Training Function in PyTorch

In this article, we will implement a softmax regression model and a training function using PyTorch. We will start by loading the Fashion-MNIST dataset and defining the model architecture. Then, we will implement the softmax function and the cross-entropy loss function. After that, we will define the training function and the updater function. Finally, we will train the model using the training function and the updater function.