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课程一(Neural Networks and Deep Learning)，第一周（Introduction to Deep Learning）—— 2、10个测验题
1、What does the analogy “AI is the new electricity” refer to?A. Through the “smart grid”, AI is delivering a new wave of electricity.B. Similar to electricity starting about 100 years ago, AI is tr...原创 2018-10-11 21:09:29 · 399 阅读 · 0 评论 -
课程一(Neural Networks and Deep Learning)，第二周（Introduction to Deep Learning）—— 2、10个测验题
1.What does a neuron compute?A. A neuron computes the mean of all features before applying the output to an activation function.B. A neuron computes a linear function (z = Wx + b) followed by an ac...原创 2018-10-15 11:13:21 · 869 阅读 · 4 评论 -
课程一(Neural Networks and Deep Learning)，第二周（Basics of Neural Network programming）—— 3、Python Basic
“”"第一个“”"test = “Hello World”print(“test:”+test)“”"第二个“”"import mathdef basic_sigmoid(x):“”":param x::return:s“”"s = 1/(1+math.exp(-x))return s#if name == ‘main’:#print(basic_sigmoid(...原创 2018-11-01 09:32:15 · 303 阅读 · 0 评论 -
Logistic-Regression-with-a-Neural-Network-mindset
Logistic_regression.py"""You will learn to:- Build the general architecture of a learning algorithm, including:- Initializing parameters- Calculating the cost function and its gradient- Using a...原创 2018-11-07 18:55:32 · 430 阅读 · 0 评论 -
Planar data classification with one hidden layer-1
testCases_v2.pyimport numpy as npdef layer_sizes_test_case(): np.random.seed(1) X_assess = np.random.randn(5, 3) Y_assess = np.random.randn(2, 3) return X_assess, Y_assessdef in...原创 2019-01-20 18:54:22 · 233 阅读 · 0 评论 -
具有神经网络思维的Logistic回归
data_provider.pyimport numpy as npimport matplotlib.pyplot as pltimport h5pyfrom lr_utils import load_datasettrain_set_x_orig, train_set_y, test_set_x_orig, test_set_y, classes = load_dataset()...原创 2019-07-06 20:34:35 · 492 阅读 · 0 评论