本文旨在通过可视化方法和数学推导，揭示图神经网络自注意力层的内部运作机制。我们将采用"位置-转移图"的概念框架，结合NumPy编程实现，一步步拆解自注意力层的计算过程，使读者能够直观理解注意力权重是如何生成并应用于图结构数据的。

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