技术文章 - 复制未来

Brief introduction of xgboost principle

Introduction to xgboost in the big data competition, xgboost dominates almost 80% of the big data competitions outside the field of text and image. Of...

2020-07-09 18:14:04 阅读数:0 评论数:0 作者:User 3577892

What is "the game of little pigs"?

The story takes place in Xiaohui's student days. Xiaohui and rhubarb are classmates in the same class. What's the story about smart pig game? In a pig...

2020-07-09 18:13:36 阅读数:0 评论数:0 作者:Broadview

Nacos 1.3.0 release, a version of cultivating internal skills: new kernel build!

Version 1.3.0 began to cultivate internal skills, focusing on the three core points of "simplicity", "performance" and "high availability", so as to f...

2020-07-09 18:13:26 阅读数:0 评论数:0 作者:Procedure ape DD

非递归多层树形结构

非递归多层树形结构开发过程中经常会遇到返回一些多层树形结构的需求，而且该属性结构层级不确定，没办法确定用循环次数。此时最方便的方法是使用递归来解决，简单快捷，但是该方式在层级特别深的情况就有问题，可能会导致栈溢出，所以需要使用非递归的方式。数据准备 // 样例数...

2020-07-09 18:13:00 阅读数:0 评论数:0 作者:bartggg

递归结构树形多层

Do you really understand the principles of index creation and index invalidation

It takes about 20 minutes to read the text. Principle of index creation in order to make the use of index more efficient, we must consider which field...

2020-07-09 18:11:38 阅读数:0 评论数:0 作者:Java paradise

Three properties of concurrent programming: atomicity, visibility and orderliness

It takes about three minutes to read the text. 0x01: concurrent programming to execute concurrent programs correctly, we must ensure that they have at...

2020-07-09 18:11:29 阅读数:0 评论数:0 作者:Java paradise

[paper interpretation] closed loop detection using supervised and unsupervised deep neural networks

This paper, published by Shanghai Jiaotong University in 2020 robotics and autonomous systems, proposes a new loopback detection method, which uses th...

2020-07-09 18:10:42 阅读数:0 评论数:0 作者:Xiaobai's vision

Milvus online Q & a 14 - overview of Milvus unstructured data service (UDS)

Is Milvus a computing platform or a database? In what scenarios? And so on. Our developers are often asked by their partners in the group. This time, ...

2020-07-09 18:10:31 阅读数:1 评论数:0 作者:Ziliz

Basic indicator information view and command of cloud server

Through the previous chapters, we can easily access the cloud server and pull the code from GitHub. This chapter will show you how to view the basic c...

2020-07-09 18:10:08 阅读数:1 评论数:0 作者:Mountain moon

Add watermark to PDF file, this software is enough!

Often need to use PDF files to complete a variety of daily work, always add some unique tags to these files before sending them out. So, if you want t...

2020-07-09 18:08:03 阅读数:1 评论数:0 作者:Mysterious and magical

Mobile video clip, fresh video editing smooth operation!

Recently, a good friend downloaded the refreshing video editing app on his mobile phone, but he didn't know how to use it. In fact, for such a novice,...

2020-07-09 18:07:54 阅读数:1 评论数:0 作者:Large scale prevention

One to one video live source code one to one live dating system development trend in the future

The advent of 5g commercial has accelerated the competition of one-to-one chat system, and at the same time, the rapid development of live broadcastin...

2020-07-09 18:07:25 阅读数:1 评论数:0 作者:WX5ED453C895F1E

OSPF协议

OSPF(Open Shortest Path First开放式最短路径优先）是一个内部网关协议(Interior Gateway Protocol，简称IGP），用于在单一自治系统（autonomous system,AS）内决策路由。是对链路状态路由协议的一种实现，隶属内部网关协议（IGP）...

2020-07-09 18:06:00 阅读数:1 评论数:0 作者:阿桥_Qiao

协议博客园技术开发 ospf

Unity发布WebGL后加载本地文件

Unity发布WebGL平台的程序是不可以直接访问用户电脑的文件的。但是在使用浏览器的时候，很多的网站都可以弹出一个窗口，选择文件并打开。像下面这种代码其实就一句：＜input type='file' /＞所以，我就有个思路，想办法用Unity调用这个组件，直接从这个组件里面...

2020-07-09 18:04:00 阅读数:1 评论数:0 作者:有只小耗子

WebGL unity 发布加载文件

Have you ever been driven crazy by changing your password?

This is the first time I don't know how many times I have changed the passwords of all kinds of apps. If some apps are not opened for a long time, the...

2020-07-09 18:03:10 阅读数:1 评论数:0 作者:The sun of the little sun

Official support hotline of equipment manufacturers

D-Link 400 technical support telephone: 400-629-6688 (household product hotline) 4006-828-828 (enterprise product hotline) service time: 9:00-19:00 on...

2020-07-09 18:03:02 阅读数:1 评论数:0 作者:xyz0000

UVM methodology and design patterns_ 5: Command mode & UVM sequence

Part 1. The command mode code example assumes that there is the first generation code in the above paragraph, and the run function is used to perform ...

2020-07-09 17:51:38 阅读数:1 评论数:0 作者:AsicWonder

What are we imitating when we do post imitation

The value of the initialization register is sometimes in the simulation. Because of various correct and incorrect reasons, some registers hope to have...

2020-07-09 17:51:29 阅读数:1 评论数:0 作者:AsicWonder

What are we imitating when we do post imitation

There is a step in the digital chip design process called gate level netlist simulation. The so-called gate level corresponds to RTL (register transfe...

2020-07-09 17:51:13 阅读数:1 评论数:0 作者:AsicWonder

Take out the glory of "infrared temperature measurement" and finally be poor?

When aixdrun wakes up, it is inexplicably given the advertisement of glory play 4 to the screen, including information flow of search window, informat...

2020-07-09 17:51:00 阅读数:2 评论数:0 作者:User 2908108

Feature extraction in machine learning

Under the condition that countvectorizer is used for feature lifting feature extraction and the stop words are not removed, the naive Bayes classifica...

2020-07-09 17:47:07 阅读数:1 评论数:0 作者:User 3577892

Certainty and uncertainty of testing

As test engineers, our main duty is to use various means to ensure the quality of products. Every tester hopes that there will be no problem after the...

2020-07-09 17:46:52 阅读数:1 评论数:0 作者:User 5521279