ljmatilda

When running a Python file, you can use options on the command line to inspect your co...

Ctrl-s : saves the current file Ctrl-z : undo Ctrl-y : redo Ctrl-[ : indent a line or ...

准备夯实一下自己的计算机技术基础，跟着John Denero 学习 Structure and Interpretation of Computer Programs，可惜...

In particular, linear regression is a useful tool for predicting a quantitative respon...

In essence, statistical learning refers to a set of approaches for estimating f. There...

Statistical learning refers to a vast set of tools for understanding data. These tools...

Gradient descent gives one way of minimizing J. Let’s discuss a second way of doing so...

Linear regression with multiple variables is also known as "multivariate linear regres...

The inverse of a matrix A is denoted A-1. Multiplying by the inverse results in the id...

. Matrices are not commutative: A∗B != B∗A . Matrices are associative: (A∗B)∗C = A∗(B∗...

The above matrix has four rows and three columns, so it is a 4 x 3 matrix. So vectors ...

摘抄自-《漫步华尔街》目的：就投资问题提出总体建议练习1：收集漫步必需品-定期储蓄，现在就开始练习2:不要在急需用钱时发现囊中空空：用现金储备和保险来保护自己-坏事总会接踵...

So we have our hypothesis function and we have a way of measuring how well it fits int...

We can measure the accuracy of our hypothesis function by using a cost function. This ...

To establish notation for future use, we’ll use x^i to denote the “input” variables , ...

当一个iOS应用程序崩溃时，系统会创建一份crash日志保存在设备上。这份crash日志记录着应用程序崩溃时的信息，通常包含着每个执行线程的栈调用信息（低内存闪退日志例外）...

Supervised learning and Unsupervised learning. In supervised learning, we are given a ...

Arthur Samuel described machine learning as: "the field of study that gives computers ...