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Softmax、熵与玻尔兹曼:一条从比特到粒子的概率之路
在机器学习的世界里,有一个函数几乎无处不在: Softmax。它将神经网络最后一层的打分变成一组概率,让模型能用“我有多确定”来回答问题。乍看,这只是一个便利的数学小工具;然而当我们把目光移向 19 世纪的统计力学,再回到 20 世纪的信息论,再 ...
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