logistic回归时,权重可以初始化全为零 因为logistic回归没有隐藏层,如果将权重初始化为零,则Logistic回归中的第一个示例x将输出零,但是logistic回归的导数取决与不是零的输入x(因为没有隐藏层)。因此,在第二次迭代中,如果x不是常量向量,则权值遵循x的分布并且彼此不同。 第28题: 随机初始化时,习惯把权重设为较...
[ ]Deep learning has resulted in significant improvements in important applications such as online advertising, speech recognition, and image recognition. 博主注:D选项为深度学习发展的结果而不是reason。 3.Recall this diagram of iterating over different ML ideas. Which of the statements below are true?