This is a basic example, and there are many ways to improve it, such as using a more sophisticated architecture, increasing the size of the model, or using pre-trained models as a starting point.
To ensure the model only looks at past tokens during training, an upper-triangular causal mask fills future positions with −∞negative infinity before applying the softmax function: Build A Large Language Model -from Scratch- Pdf -2021
The input vector is multiplied by three separate weight matrices ( Scaled Dot-Product: Attention weights are calculated as This is a basic example, and there are