achieve split gain to
Split to Achieve Gain
Machine Learning - Split to Achieve Gain Calculate Information Gain.TaskGiven a dataset and a split of the dataset, calculate the information gain usi ......
Solution to OpenSSL Connection Problems With Github
Problems Uploading Files with Git Sometimes we can use git tool to successfully upload projects to Github, but in other time especially after a period ......
2How To Use Python On A Web Page With Jinja2 - Fla 21:30
# localhost:5000/user/John @app.route("/user/<name>") def user(name): return render_template("user.html", user_name=name) 这段代码是使用了 Flask 框架创建一个路由。具体解释 ......
题解 ABC326G【Unlock Achievement】
题解 ABC326G【Unlock Achievement】 problem 有 \(n\) 项属性，第 \(j\) 个属性的等级 \(l_j\) 初始为 \(1\)，每提升一级花费 \(c_j\) 的钱。又有 \(m\) 项成就，第 \(i\) 项成就要求对于所有 \(1\leq j\leq n\ ......
centos7.9重启网卡提示Failed to start LSB: Bring up/down networking.
前几天给一台机器状态centos7.9系统，设备有2个网口，今天重启网卡一直失败， 查看network状态，怀疑是eth0网卡有问题 查看eth0的网卡配置，发现是eth0网卡的BOOTPROTO=dhcp，且ONBOOT=yes，但eth0网口没插网线，这导致重启网卡时，一直重启eth0，但是没插 ......
How to Find the Size of a DB2 Database
How to Find the Size of a DB2 Database EMBER CROOKS JUNE 19, 2012 15 COMMENTS How big is it? How much space do we need if we copy it? How big will it ......
Indoor air pollution: What causes it and how to tackle it
Most people think of air pollution as something that comes from factories or motor vehicles. However, did you know that the air inside your home or pl ......
pip3 install xxx, Fatal error in launcher: Unable to create process using '"C:\Software\Python310\python.exe" "D:\xxxx\Software\Python310\Scripts\pip3.exe" install shutil': ???????????
重装系统后, 移动了python所在目录后, 使用 pip3 install xx 提示: Fatal error in launcher: Unable to create process using '"C:\Software\Python310\python.exe" "D:\Aliwall\ ......
解决self.draw.draw_rectangle(xy, fill, 1) ValueError: y1 must be greater than or equal to y0的问题
我尝试了很多方法，包括单不限于 改labelme文件的直接报错 ，修改 pillow包的原文件 尝试注释掉raise 的地方 。最后都以失败告终。还有尝试重新安装最新版的包，来解决。 最后经过多次尝试后发现，发生错误的地方的文件是有问题的，至于是什么问题到现在也不知道，那就删除最后停止位置时的文件解 ......
Cannot connect to the Docker
执行docker基础命令失败！ Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 原因：docker服务没有启动。 解决方法：执行 systemctl s ......
Angular 中的 code splitting 和 lazy loading 技术
Angular中的Lazy Loading技术详解 在Angular应用开发领域，实现Lazy Loading是一个重要而复杂的任务，特别是在构建时需要动态加载代码的情况下。本文将详细介绍Angular Lazy Loading的更多细节，包括核心概念、实际应用和解决方案。Lazy Loading是 ......
CodeForces 1887D Split
洛谷传送门 CF 传送门 \(a_l, a_{l + 1}, \ldots a_r\) 是好的当且仅当 \(\exists k \in [l, r - 1], \max\limits_{i = l}^k a_i < \min\limits_{i = k + 1}^r a_i\)，称此时的 \(k\) ......
IBM Db2 LUW to Amazon Aurora PostgreSQL or Amazon RDS for PostgreSQL
Validate database objects after migrating from IBM Db2 LUW to Amazon Aurora PostgreSQL or Amazon RDS for PostgreSQL by Sai Parthasaradhi, Rakesh Ragha ......
多模块mvn构建Unable to find main class
多子模块构建 非核心启动类 <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> ......
From monolithic application to microservice framework
challenges: 1. version control After testing the branch A, pull the latest code(merged B) -> confilcts ? no conflicts? -> regression testing 2. change ......
SSL certificate problem: unable to get local issuer certificate 错误解决
终端报了如下错误git SSL certificate problem: unable to get local issuer certificate 这个问题是由于没有配置信任的服务器HTTPS验证。默认，cURL被设为不信任任何CAs，就是说，它不信任任何服务器验证。在网上查了很多方法，最终使用 ......
Data truncation: Invalid JSON text in argument 1 to function json_extract: "The document is empty." at position 0.问题解决
问题描述： json格式不规范导致的，仅使用where+json_valid清洗似乎并不足以解决问题 解决方法： select order_number,sku_code,CASE WHEN JSON_VALID(sales_price) THEN sales_price ELSE null END ......
Can't connect to local MySQL server through socket '/tmp/mysql.sock'
Can't connect to local MySQL server through socket '/tmp/mysql.sock' 删除配置文件后重启 service mysql restart root 31619 1 0 14:06 ? 00:00:00 /bin/sh /home/mys ......
How to tell whether a file is a symbolic link in shell script All In One
How to tell whether a file is a soft symbolic link in shell script All In One
shell 脚本中如何判断一个文件是否是软链接 / 软符号链接
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vue 首次加载项目,控制台报错: Redirected when going from "/" to "/login"
第一次加载加载页面时报错如下:Redirected when going from "/" to "/login" via a navigation guard.  内找到一个阈值 \(x\) 和一个位置 \(i<r\)，满足 \(\forall j\in[l,i],a_j\le x\) 且 \(\forall j\in(i,r],a_j> x\)。 考虑刻画出所有 ......
Vue中使用vue-count-to（数字滚动插件）
效果图 1. 简单介绍 npm官网：vue-count-to vue-count-to 就是一个组件插件，咱们引入进来，可以去打印一下，它就是一个组件实例，使用components注册一下，就可以在模板中使用了，具体方式如下： 2. 安装 npm install vue-count-to 3. 引入 ......
2023-10-24 Too many re-renders. React limits the number of renders to prevent an infinite loop. ==》组件在渲染过程中执行了任务导致状态更新，从而触发了无限循环
React报错： Too many re-renders. React limits the number of renders to prevent an infinite loop. 重新渲染过多。React限制渲染次数，以防止出现无限循环。 解决方案：查看你最近写的代码，比如我写了一个函数组件 ......
How To Clear Quick Access And Recent File And Folders In Windows 10
How To Clear Quick Access And Recent File And Folders In Windows 10 Here are the instructions to clear the Quick Access and Recent Files and Folders c ......
How to fix EventSource onmessage not working in JavaScript All in One
How to fix EventSource onmessage not working in JavaScript All in One
SSE
Server-Sent Events / 服务端推送
Node.js Buffer.from
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Error: Unable to access jarfile ./sbt-launch.jar问题的解决
问题描述 在配置好sbt之后，尝试运行一下./sbt sbtVersion这个命令； 却突然出现上面那种情况； 问题解决 重新查看相关教程，发现我漏掉一个步骤，一定要将sbt的bin目录下的sbt-launch.jar复制到 sbt的安装目录下，不然就会找不到这个jar包而出错； 命令(在sbt的安 ......
OGG-03542 Failed to connect to the database
GGSCI (dwdb01) 4> dblogin userid GOLDENGATE@cnlionrdb,password ******* 2023-10-23 17:11:26 INFO OGG-03542 Failed to connect to the database. Verify th ......
Failed to start discovery: org.bluez.Error.InProgress
# bluetoothctl scan on Failed to start discovery: org.bluez.Error.InProgress 问题背景： blueZ版本： # bluetoothd --version 5.52 kernel版本：4.4.13 Bluetooth chip ......