Zhentiw - 博客园

2020年8月24日

[CSS] Use grid-template to make your CSS Grid declarations more readable

摘要： In previous post: https://www.cnblogs.com/Answer1215/p/13527076.html Code: .banner { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-template- 阅读全文

posted @ 2020-08-24 15:12 Zhentiw 阅读(147) 评论(0) 推荐(0)

[Machine Learning Ex2] Linear Regression with Multiple Variables

摘要： x2: midterm exam ^ 2, apply mean normalization: mean value = (7921 + 5184 + 8836 +4761) / 4 = 6675.5 range = 8836-4761 = 4075 ans = (4761 - 6675./5) / 阅读全文

posted @ 2020-08-24 02:05 Zhentiw 阅读(193) 评论(0) 推荐(0)

[Machine Learning] Normal Equation Noninvertibility

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posted @ 2020-08-24 01:29 Zhentiw 阅读(129) 评论(0) 推荐(0)

[Machine Learning] Normal Equation for linear regression

摘要： We have used gradient descent where in order to minimize the cost function J(theta), we would take this iterative algorithm that takes many steps, mul 阅读全文

posted @ 2020-08-24 01:20 Zhentiw 阅读(203) 评论(0) 推荐(0)

2020年8月23日

[React] Use react styled system with styled components

摘要： In this lesson we’ll improve a generic button primitive component by refactoring it with Styled System to simplify the implementation. The naïve style 阅读全文

posted @ 2020-08-23 03:02 Zhentiw 阅读(377) 评论(0) 推荐(0)

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(235) 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(243) 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(161) 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(268) 评论(0) 推荐(0)

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