题目
702:Crossing River 总时间限制: 1000ms 内存限制: 65536kB 描述 A group of N people wishes to go across a river with only one boat, which can at most carry two persons. Therefore some sort of shuttle arrangement must be arranged in order to row the boat…
softmax(Multinomial Logistic Regression)
如果把样本类别,看作是一种随机事件的话,那么它需要满足两种条件:
每个类别的概率和为1每个类别的概率在【0,1】 p ( C k ∣ x ) e w k T x ∑ k ′ e w k ′ T x p(C_k | x) \frac…