逻辑回归 交叉熵
2018-04-19 19:30 xplorerthik 阅读(249) 评论(0) 编辑 收藏 举报二分类情况：
H(t, o) = - t(log(o)) + (1-t)*log(1-o)
多分类情况
http://www.stat.cmu.edu/~cshalizi/350/lectures/26/lecture-26.pdf
deeplearning.net/software/theano/library/tensor/nnet/nnet.html?highlight=cross%20entropy#theano.tensor.nnet.nnet.binary_crossentropy
