https://www.coursera.org/learn/machine-learning/exam/7pytE/linear-regression-with-multiple-variables 1。 Suppose m=4 students have taken some ...
Question Consider the problem of predicting how well a student does in her second year of college university, given how well they did in their first year. Specifically, let x be equal to the number of ...
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https://www.coursera.org/learn/machine-learning/exam/7pytE/linear-regression-with-multiple-variables 1。 Suppose m=4 students have taken some ...
to compute the cost of linear regression[*] gradientDes ...
Question 1 Consider the problem of predicting how well a student does in her second year of college ...
https://www.coursera.org/learn/machine-learning/exam/dbM1J/octave-matlab-tutorial Octave Tutorial 5 试题 1. Suppose I first execute ...
Lecture2 Linear regression with one variable 单变量线性回归 2.1 模型表示 Model Representation 2.1.1 线性回归 Linear regression 2.1.2 单变量线性回归 Linear ...
1. The Problem of Overfitting 1 还是来看预测房价的这个例子,我们先对该数据做线性回归,也就是左边第一张图。 如果这么做,我们可以获得拟合数据的这样一条直线,但 ...
线性回归是机器学习中最基础的算法,掌握了线性回归算法,有利于以后更容易地理解其它复杂的算法。 线性回归看似简单,但是其中包含了线性代数,微积分,概率等诸多方面的知识。让我们先从最简单的形式开始。 一元线性回归(Simple Linear Regression): 假设只有一个 ...
1. 模型表达(Model Representation) 我们的第一个学习算法是线性回归算法,让我们通过一个例子来开始。这个例子用来预测住房价格,我们使用一个数据集,该数据集包含俄勒冈州波特兰市的 ...