小白想问一下注意力模型的图像代表什么含义？

就是下面这种图，横轴、纵轴代表什么，曲线代表什么含义，希望得到大佬的解答！

The issue provides only an image and does not mention a file, test, or entry point. Start by identifying which attention-model visualization in the Python/PyTorch project produced the image, then trace its plotted inputs and labels. Done means documenting what the horizontal axis, vertical axis, and curve represent, with enough context for readers to interpret the figure.

Written by the indexing model from the issue text.