Zhentiw - 博客园

2020年9月13日

[Docker] Create a Docker configuration for a NestJS API

摘要： In this lesson, we add a Docker configuration to our project. In the Dockerfile we specify the different layers of our Docker image. We use a pretty s 阅读全文

posted @ 2020-09-13 22:19 Zhentiw 阅读(207) 评论(0) 推荐(0)

[Javascript] Joi for validation

摘要： Install: npm i --save joi Example: const schema = Joi.object({ username: Joi.string() .alphanum() .min(3) .max(30) .required(), password: Joi.string() 阅读全文

posted @ 2020-09-13 22:09 Zhentiw 阅读(211) 评论(0) 推荐(0)

[Machine Learning] Unrolling Parameters

摘要： With neural networks, we are working with sets of matrices: In order to use optimizing functions such as "fminunc()", we will want to "unroll" all the 阅读全文

posted @ 2020-09-13 02:12 Zhentiw 阅读(161) 评论(0) 推荐(0)

2020年9月10日

[CSS] Use CSS pseudo-elements and mix-blend-mode to Create a Duotone Style Effect

摘要： In this lesson, we use CSS pseudo-elements and the mix-blend-mode property to create a duotone effect for an image. We wrap the image in a container e 阅读全文

posted @ 2020-09-10 16:06 Zhentiw 阅读(144) 评论(0) 推荐(0)

[Machine Learning] Backpropagation Algorithm

摘要： "Backpropagation" is neural-network terminology for minimizing our cost function, just like what we were doing with gradient descent in logistic and l 阅读全文

posted @ 2020-09-10 02:58 Zhentiw 阅读(190) 评论(0) 推荐(0)

[Machine Learning] Neural Network: Cost Function

摘要： Let's first define a few variables that we will need to use: 阅读全文

posted @ 2020-09-10 02:44 Zhentiw 阅读(153) 评论(0) 推荐(0)

2020年9月9日

[Recoil] Use selectorFamily to take arguments in your Recoil selectors

摘要： In this lesson, we're going to learn how to create Recoil selectors that accept arguments. These are made possible using the selectorFamily utility fu 阅读全文

posted @ 2020-09-09 19:10 Zhentiw 阅读(862) 评论(0) 推荐(0)

2020年9月8日

[CSS 3] content-visibility: auto Improve rendering performance

摘要： When page get loaded, browser need to calculate how to render the page even before first pixel get rendered. Also means that for the content which is 阅读全文

posted @ 2020-09-08 18:53 Zhentiw 阅读(363) 评论(0) 推荐(0)

[Machine Learning] Neural Networks: Representation Quiz

摘要： 30 -20x1 - 20x2 0 0 1 0 1 1 1 0 1 1 1 0 So NOTx1 AND NOTx2 阅读全文

posted @ 2020-09-08 03:36 Zhentiw 阅读(184) 评论(0) 推荐(0)

2020年9月7日

[Machine Learning] Multiclass Classification - one vs all

摘要： To classify data into multiple classes, we let our hypothesis function return a vector of values. Say we wanted to classify our data into one of four 阅读全文

posted @ 2020-09-07 03:05 Zhentiw 阅读(250) 评论(0) 推荐(0)

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