Zhentiw - 博客园

2020年8月22日

[Machine Learning] Polynomial Regression

摘要： Quadratic function: Cubic function: 阅读全文

posted @ 2020-08-22 16:50 Zhentiw 阅读(234) 评论(0) 推荐(0)

[Machine Learning] Gradient Descent in Practice I - Feature Scaling

摘要： Feature scaling: it make gradient descent run much faster and converge in a lot fewer other iterations. Bad cases: Good cases: We can speed up gradien 阅读全文

posted @ 2020-08-22 16:33 Zhentiw 阅读(239) 评论(0) 推荐(0)

[Machine Learning] Gradient Descent For Multiple Variables

摘要： The gradient descent equation itself is generally the same form; we just have to repeat it for our 'n' features: In other words: The following image c 阅读全文

posted @ 2020-08-22 16:20 Zhentiw 阅读(236) 评论(0) 推荐(0)

2020年8月21日

[Machine Learning] Multivariate Linear Regeression

摘要： Linear regression with multiple variables is also known as "multivariate linear regression". We now introduce notation for equations where we can have 阅读全文

posted @ 2020-08-21 14:48 Zhentiw 阅读(159) 评论(0) 推荐(0)

2020年8月20日

[React] Using react-styleguidist for Component demo

摘要： Similar to Storybook, react-styleguidist is used to show the custom UI elements. It is easy to setup and use, it uses markdown file as example page: i 阅读全文

posted @ 2020-08-20 22:55 Zhentiw 阅读(265) 评论(0) 推荐(0)

2020年8月19日

[Machine Learning] Octave Vectorization

摘要： To compute this formula, you need to do: Actually, to make it simpler, we can do Vectorization, that formula is actually equals to: So we can code it 阅读全文

posted @ 2020-08-19 19:10 Zhentiw 阅读(94) 评论(0) 推荐(0)

[CSS] Use CSS Grid to create an asymmetric promo grid

摘要： In this lesson, we'll create an asymmetric promotional area where our promos get progressively smaller. We'll use CSS Grid to keep our HTML to 6 seman 阅读全文

posted @ 2020-08-19 03:08 Zhentiw 阅读(195) 评论(0) 推荐(0)

[Machine Learning] Octave Control Statements, for while if

摘要： For: v = zeros(10, 1); for i=1:10, v(i) = 2^i; end; # the same as indices=1:10 for i=indices, disp(i) end; while & if & break: i=1; while i <=5, v(i) 阅读全文

posted @ 2020-08-19 02:49 Zhentiw 阅读(128) 评论(0) 推荐(0)

[Machine Learning] Octave Plotting Data

摘要： t=[0:0.01:0.98]; y1 = sin(2*pi*4*t); plot(t, y1) If you draw tha cos function, it will replace the sin function figure to a new one y2 = cos(2*pi*4*t) 阅读全文

posted @ 2020-08-19 02:27 Zhentiw 阅读(169) 评论(0) 推荐(0)

2020年8月18日

[VSCode] Visually Organize Applications in VS Code with Window Color-Coding

摘要： When working in a codebase that has frontend, backend, middleware, service, and other concerns all in the same GIT repository, it can be helpful to co 阅读全文

posted @ 2020-08-18 02:10 Zhentiw 阅读(137) 评论(0) 推荐(0)

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