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摘要: 1 交叉熵损失函数 \[\begin{aligned} L_{\mathrm{CE}}(\hat{y},y)& =-\log p(y|x)~=~-[y\log\hat{y}+(1-y)\log(1-\hat{y})] \\ &=-[y\log\sigma(w\cdot x+b)+(1-y)\log{ 阅读全文
posted @ 2024-01-18 09:36 荒_ayang 阅读(73) 评论(0) 推荐(0)