Python artificial intelligence practice: automatic recommendation system

1. Background introduction Auto Recommendation System (Auto Recommendation System) is a very popular research field in the Internet industry. According to different application scenarios and user needs, its goals can be divided into the following three categories: Personalized recommendation: The system recommends products, articles, etc. that are most relevant to the user’s interests based on […]

WIndows’ CMD\PowerShell command line startup program runs a nohup command similar to Linux system in the background.

There is no command similar to nohup under windows, but you can use other commands to achieve this function. 1. Explanation of commands used: 1. Start-Process: Start one or more processes on the local computer. Related introduction links: Start-Process (Microsoft.PowerShell.Management) | Microsoft Learn? Mainly used parameters 1.1, -WindowStyle Specifies the state of the window used […]

Spring Boot implements various parameter verifications. It is so well written. It is recommended to collect it!

Hello everyone, I am a passerby~~~ Click on the card below to follow me, java dry goods will be delivered in time I have written an article about the use of Spring Validation before, but I still feel that I am superficial. This time I plan to thoroughly understand Spring Validation. This article will introduce […]

Comment module of springboot personal blog system

Personal blog system development is briefly divided into five modules Homepage Login function Comment management Article management Email management A complete blog system, the front-end page can display and publish comments, comment users can reply to each other, and the back-end can manage the comment content. Due to limited space, the article comments of this […]

Git command line usage guide

Git command line usage guide Part One: Configuring Git 1.1 Set user information 1.2 Configure line break processing Part 2: Create and configure the warehouse 2.1 Initialize the warehouse 2.2 Clone the repository 2.3 Recursive cloning 2.4 Deep cloning Part 3: Basic Operations 3.1 Add files 3.2 Commit changes 3.3 View status and submission history […]

It turns out that this is the thread closing method recommended by JDK

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Springboot2.x integrated lettuce connection redis cluster reports timeout exception Command timed out after 6 second(s)

Original/Zhu Jiqian Background: Recently, I was doing a stress test on a newly developed Springboot system. I found that when I first started the stress test, I could access data from the redis cluster normally. However, after a few minutes of pause, and then when I continued to use jmeter to perform the stress test, […]

Flink SQL –Command line usage (02)

1. Window function: 1. Create table: — Create kafka table CREATE TABLE bid ( bidtime TIMESTAMP(3), price DECIMAL(10, 2) , item STRING, WATERMARK FOR bidtime AS bidtime ) WITH ( ‘connector’ = ‘kafka’, ‘topic’ = ‘bid’, — the topic of the data ‘properties.bootstrap.servers’ = ‘master:9092,node1:9092,node2:9092’, — broker list ‘properties.group.id’ = ‘testGroup’, — consumer group ‘scan.startup.mode’ […]

stm32 dual machine (f1 and f4) serial communication sends multi-byte symbol number

When I looked for serial port communication information on the Internet, most of it was communication between the host computer and the board. I rarely saw communication between two computers. I will record my thoughts in this article and hope it will be helpful. Interface connection: Select serial port one for f103, select serial port […]