此文是斯坦福大学,机器学习界 superstar - Andrew Ng 所开设的 Coursera 课程:Machine Learning 的课程笔记. 力求简洁,仅代表本人观点,不足之处希望大家探讨. 课程网址:https://www.coursera.org/learn/machine-learning/home/welcome Week 3: Logistic Regression & Regularization 笔记:http://blog.csdn.net/ironyoung/ar…

此文是斯坦福大学,机器学习界 superstar - Andrew Ng 所开设的 Coursera 课程:Machine Learning 的课程笔记. 力求简洁,仅代表本人观点,不足之处希望大家探讨. 课程网址:https://www.coursera.org/learn/machine-learning/home/welcome Week 2:Linear Regression with Multiple Variables笔记:http://blog.csdn.net/ironyoung…

##Linear Regression with One Variable Linear regression predicts a real-valued output based on an input value. We discuss the application of linear regression to housing price prediction, present the notion of a cost function, and introduce the gradi…

Machine Learning Lab1 打算把Andrew Ng教授的#Machine Learning#相关的6个实验一一实现了贴出来- 预计时间长度战线会拉的比較长(毕竟JOS的7级浮屠还没搞定.) ----------------------------------------------------------------------------------------------------------------------------------- 实验内容: 线性拟合 实验材…

##Advice for Applying Machine Learning Applying machine learning in practice is not always straightforward. In this module, we share best practices for applying machine learning in practice, and discuss the best ways to evaluate performance of the le…

(1) How to comput the Cost function in Univirate/Multivariate Linear Regression; (2) How to comput the Batch Gradient Descent function in Univirate/Multivariate Linear Regression; (3) How to scale features by mean value and standard deviation; (4) Ho…

About this Course Machine learning is the science of getting computers to act without being explicitly programmed. In the past decade, machine learning has given us self-driving cars, practical speech recognition, effective web search, and a vastly i…

一:单变量线性回归(Linear regression with one variable) 背景:在某城市开办饭馆,我们有这样的数据集ex1data1.txt,第一列代表某个城市的人口,第二列代表在该城市开办饭馆的利润. 我们将数据集显示在可视图,可以看出跟某个线性方程有关,而此数据只有单个变量(某城市人口),故接下来我们就使用单变量线性回归拟合出一条近似满足于上数据的直线. 1,单变量的脚本ex1.m: %% Machine Learning Online Class - Exercise…

machine learning- linear regression with one variable(2) Linear regression with one variable = univariate linear regression: 由一个输入变量预测出一个output (regression problem预测连续的值).                                  single input<--->single output training set:…

1. 机器学习的定义:Machine learning is programming computers to optimize a performance criterion(优化性能标准) using example data or past experience. 2. 监督学习(Supervised Learning):The term supervised learning refers to the fact that we gave the algorithm a data set…