Convolutional Neural Networks https://www.coursera.org/learn/convolutional-neural-networks/home/welcome There are still something confuse me! working how to paste the jupyter here.................................................... Convolutional Neur…
About this Course If you want to break into cutting-edge AI, this course will help you do so. Deep learning engineers are highly sought after, and mastering deep learning will give you numerous new career opportunities. Deep learning is also a new "s…
Neural Networks and Deep Learning This is the first course of the deep learning specialization at Coursera which is moderated by moderated by DeepLearning.ai. The course is taught by Andrew Ng. Introduction to deep learning Be able to explain the maj…
最近花了半个多月把Mchiael Nielsen所写的Neural Networks and Deep Learning这本书看了一遍,受益匪浅. 该书英文原版地址地址:http://neuralnetworksanddeeplearning.com/ 回顾一下这本书主要讲的内容 1.使用神经网络识别手写数字 作者从感知器模型引申到S型神经元.然后再到神经网络的结构.并用一个三层神经网络结构来进行手写数字识别, 作者详细介绍了神经网络学习所使用到梯度下降法,由于当训练输入数量过大时,学习过程将变…
Coursera课程<Neural Networks and Deep Learning> deeplearning.ai Week2 Neural Networks Basics 2.1 Logistic Regression as a Neutral Network 2.1.1 Binary Classification 二分类 逻辑回归是一个用于二分类(binary classification)的算法.首先我们从一个问题开始说起,这里有一个二分类问题的例子,假如你有一张图片作为输入,比…
Coursera课程<Neural Networks and Deep Learning> deeplearning.ai Week1 Introduction to deep learning What is a Neural Network? 让我们从一个房价预测的例子开始讲起. 假设你有一个数据集,它包含了六栋房子的信息.所以,你知道房屋的面积是多少平方英尺或者平方米,并且知道房屋价格.这时,你想要拟合一个根据房屋面积预测房价的函数. 如果使用线性回归进行拟合,那么可以拟合出一条直线.但…
近期開始看一些深度学习的资料.想学习一下深度学习的基础知识.找到了一个比較好的tutorial,Neural Networks and Deep Learning,认真看完了之后觉得收获还是非常多的.从最主要的感知机開始讲起.到后来使用logistic函数作为激活函数的sigmoid neuron,和非常多其它如今深度学习中常使用的trick. 把深度学习的一个发展过程讲得非常清楚,并且还有非常多源代码和实验帮助理解.看完了整个tutorial后打算再又一次梳理一遍,来写点总结.以后再看其它资料…
Lesson 1 Neural Network and Deep Learning 这篇文章其实是 Coursera 上吴恩达老师的深度学习专业课程的第一门课程的课程笔记. 参考了其他人的笔记继续归纳的. 逻辑回归 (Logistic Regression) 逻辑回归的定义 神经网络的训练过程可以分为前向传播(forward propagation) 和反向传播 (backward propagation) 的 过程.我们通过逻辑回归的例子进行说明. 逻辑回归是一个用于二分类 (binary c…
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…
Deep Neural Network - Application Congratulations! Welcome to the fourth programming exercise of the deep learning specialization. You will now use everything you have learned to build a deep neural network that classifies cat vs. non-cat images. In…