CNN 中池化层的作用是什么？ What is the purpose of the pooling layer in CNNs?单项选择题

A

CNN 中池化层的作用是增加特征图的维度，以便更好的分类。The purpose of the pooling layer in CNNs is to increase the dimensionality of feature maps for better classification.

B

CNN 中池化层的作用是从图像数据库中随机选择图像。The purpose of the pooling layer in CNNs is to randomly select images from an image database.

C

CNN 中池化层的作用是降低特征图的维度。The purpose of the pooling layer in CNNs is to reduce the dimensionality of feature maps.

D

CNN 中池化层的作用是为深度网络中的下一层调整权重。The purpose of the pooling layer in CNNs is to adjust weights for the next layer in the deep network.

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

类似问题

For stock A, we have 𝛽 𝑖 = 0.70. Suppose the expected market risk premium next year is 9% and the risk-free rate is 3%. What is the expected return of this stock based on the CAPM? (Please answer in % and round to 2 decimal places. If the answer is 8.057%, then in the box, write 8.06)

Suppose a multifactor model has three factor risk premia: market = 6%, profitability = 3%, and investment = 2%. A stock has: 𝛽 𝑚 𝑎 𝑟 𝑘 𝑒 𝑡 = 1.1,                   𝛽 𝑝 𝑟 𝑜 𝑓 𝑖 𝑡 𝑎 𝑏 𝑖 𝑙 𝑖 𝑡 𝑦 = 0.5,                       𝛽 𝑖 𝑛 𝑣 𝑒 𝑠 𝑡 𝑚 𝑒 𝑛 𝑡  = -0.2, And the risk-free rate is 3%. What is the expected return? (Please answer in % and round to 2 decimal places. If the answer is 8.057%, then in the box, write 8.06)

 Suppose that the covariance between a stock and the market portfolio is 0.06 and that the standard deviation of the market portfolio is 0.30. Suppose also that the standard deviation of the stock’s returns is 0.55. Based on the CAPM, what is β of this stock? (Please answer as a number and round to 2 decimal places. If the answer is 0.768, then in the box, write 0.77)

 Suppose that the CAPM holds and that Stock A, the market portfolio, and the risk-free asset have the following characteristics. Asset Expected return Standard deviation Stock A 15% 40% Market portfolio 11% 25% Risk-free asset 3% 0% What is the β of Stock A? (Please answer as a number and round to 2 decimal places. If the answer is 0.768, then in the box, write 0.77)

更多留学生实用工具

加入我们，立即解锁 海量真题 与 独家解析，让复习快人一步！