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catalogue preface 1, Examples 2, Steps 1. Construct Loss function 2. Partial derivative 3. Matrix multiplication 4. Gradient descent 5. Regularization 6. The code is as follows: preface Matrix decomposition can be used to calculate the predicted value and so on, which is very important, so next I will sort out ...

preface Everyone is familiar with mobile phone wallpaper. I believe whoever turns on his mobile phone wants his wallpaper to be his favorite picture, But when a wallpaper is used for a long time, it will want to change a picture full of freshness (excluding those who love it), However, the time of selecting pictures is always constant. Some ...

Python multitasking process What is a process Process: it is the basic unit of resource allocation. When a program starts running, it is a process, including the running program and the memory and system resources used by the program. CPU allocates CUP processing time for processes in the form of time slices. A process is composed of multiple t ...

iteration1.1 concept of iterationThe process of using the for loop to traverse the value is called iteration. For example, the process of using the for loop to traverse the list to obtain the valuefor value in [2, 3, 4]:     print(value)1.2 iteratable objectsStandard concept: defined in class__ iter__ Method, and the object created using this c ...

Python functions function Mathematical definition y=f(x), y is a function of X and X is an independent variable. y=f(x0, x1, ..., xn) Python functions It is composed of statement block, function name and parameter list composed of several statements. It is the smallest unit of organizing code Complete certain functions Function function ...

1, IP proxy pool (relatively simple, subsequent updates) Two protocols are used to verify ip and proxies, http and https import re import requests url = 'https://tool.lu/ip' headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36 Edg/96.0.1054.62' } ...

Focus on official account dry cargo WeChat public: K brother crawler, keep sharing crawler advance, JS/ Android reverse technology dry goods! statement All contents in this article are for learning and communication only. The packet capturing content, sensitive website and data interface have been desensitized. It is strictly p ...

Target APP: 91 short videoI posted an article before Ant accelerator brush invitation According to the article, this APP is basically the same as the encryption algorithm of ant accelerator. It is not available for download.0x00 tool preparationFiddler (agent capture)Xposed (hook framework)Inspeckage (universal hook plug-in, optional) Algorithm ...

Hello, I'm brother Manon Feige. Thank you for reading this article. Welcome to one click three times. 😁 1. Take a stroll around the community. There are benefits and surprises every week. Manon Feige community, leap plan 💪🏻 2. Python basic column, basic knowledge, 9.9 yuan can't afford to lose, and can't be fooled. Python from introduction ...

preface ”If there is an afterlife, long songs sing in pairs, the beauty snuggles up beside her, thin clothes and long years. “     When I was young, I always liked to see the clips of subduing demons and eliminating demons in journey to the West. I looked forward to it. The four masters and disciples were able ...