Planar data classification with a hidden layer Welcome to the second programming exercise of the deep learning specialization. In this notebook you will generate red and blue points to form a flower. You will then fit a neural network to correctly cl…
Planar data classification with one hidden layer 你会学习到如何: 用单隐层实现一个二分类神经网络 使用一个非线性激励函数,如 tanh 计算交叉熵的损失值 实现前向传播和后向传播 1 - Packages(导入包) 需要导入的包: numpy:Python中的常用的科学计算库 sklearn:提供简单而高效的数据挖掘和数据分析工具 matplotlib:Python中绘图库 testCases: 提供了一些测试例子来评估函数的正确性 planar…
第三周:浅层神经网络(Shallow neural networks) 3.1 神经网络概述(Neural Network Overview) 使用符号$ ^{[…
========================================================================================== 最近一直在看Deep Learning,各类博客.论文看得不少 但是说实话,这样做有些疏于实现,一来呢自己的电脑也不是很好,二来呢我目前也没能力自己去写一个toolbox 只是跟着Andrew Ng的UFLDL tutorial 写了些已有框架的代码(这部分的代码见github) 后来发现了一个matlab的Deep…
Logistic Regression with a Neural Network mindset Welcome to the first (required) programming exercise of the deep learning specialization. In this notebook you will build your first image recognition algorithm. You will build a cat classifier that r…
1.What does the analogy “AI is the new electricity” refer to?  (B) A. Through the “smart grid”, AI is delivering a new wave of electricity. B. Similar to electricity starting about 100 years ago, AI is transforming multiple industries. C. AI is power…
Frequently Asked Questions Congratulations to be part of the first class of the Deep Learning Specialization! This form is here to help you find the answers to the commonly asked questions. We will update it as we receive new questions that we think…
Python Basics with numpy (optional)Welcome to your first (Optional) programming exercise of the deep learning specialization. In this assignment you will: - Learn how to use numpy. - Implement some basic core deep learning functions such as the softm…
1. Understand the major trends driving the rise of deep learning.2. Be able to explain how deep learning is applied to supervised learning.3. Understand what are the major categories of models (such as CNNs and RNNs), and when they should be applied.…
1. Build a logistic regression model, structured as a shallow neural network2. Implement the main steps of an ML algorithm, including making predictions, derivative computation, and gradient descent.3. Implement computationally efficient, highly vect…