Chapter 8 integrated learning notes
The prediction results of multiple classifiers are combined to obtain the final decision, so as to obtain better classification and regression performance. A single classifier is only suitable for a specific type of data, so it is difficult to ensure the best classification model. If the prediction results of different algorithms are averaged, ...
Posted by tecdesign on Fri, 04 Mar 2022 08:41:38 +0100
Multithreaded interview - CountDownLatch, CyclicBarrier, Semaphore
0. Summary
1.CountDownLatch refers to one thread waiting for other threads, and CyclicBarrier refers to multiple threads waiting for each other; 2.CountDownLatch is the count - 1 until it is reduced to 0, and CyclicBarrier is the count + 1 until it reaches the specified value; 3.CountDownLatch is disposable and CyclicBarrier is recycled; 4.Cyc ...
Posted by XPertMailer on Fri, 04 Mar 2022 08:39:25 +0100
Mobile camera recognition to achieve ar ranging (AR ruler)
[example introduction] mobile camera recognition can realize ar ranging. At least three years of development experience can make it through
[example screenshot]
File: 590m.com/f/25127180-490561034-8afed0 (access password: 551685)
[core code]
using UnityEngine; using UnityEngine.XR.ARFoundation;
///Ar ruler AR function management public cl ...
Posted by Rodders on Fri, 04 Mar 2022 08:36:25 +0100
PXE batch install Ubuntu 20.04.2
Original link: https://www.cpweb.top/1698
1, Introduction
the server installer for Ubuntu 20.04 supports a new operation mode: automated installation. Automatic installation can answer all these configuration questions in advance through automatic installation configuration, and make the installation process run without any interaction. ...
Posted by bulldorc on Fri, 04 Mar 2022 08:32:34 +0100
Give you "ten years" time, can you crack China's WJLHA algorithm?
WJLHA (full name: Wang Jie lin Hash Algorithm) is a free and open source hash algorithm. The algorithm is based on the weighted probability model theory (basic theory of Jielin code). It is the basic algorithm for China's independent theoretical innovation and application implementation, and has been authorized by China's invention patent. Jeli ...
Posted by pixy on Fri, 04 Mar 2022 08:24:48 +0100
Specific implementation of vue routing parameter jump
The business scenario is like this. I query a list and display it on the page. When I click a message, I can jump to its corresponding top. The list page is displayed as follows:
When I select a message, he will jump to the corresponding single list detail page for me. The screenshot of the page is as follows:
You can see that the jump pa ...
Posted by johnperkins21 on Fri, 04 Mar 2022 08:13:48 +0100
Simple use of native keyword in Java
1. Introduction to native keyword
In principle, 100% pure java code is very good, but sometimes you also want to use code in other languages, which is called local code. The provision of local code allows us to use the code written in (c/c + +) in Java, and the implementation of this function depends on the API provided by the Java platfor ...
Posted by friendlylad on Fri, 04 Mar 2022 08:08:48 +0100
PHP builds a high-performance API architecture based on SW-X framework
preface
Official website address: SW-X framework - PHP swoolex framework focusing on high-performance and convenient development
I hope the big guys raise their hands and give my little brother a star: https://github.com/swoolex/swoolex
1. 404 interface configuration
In the HTTP service, when the corresponding route cannot be found, it will ...
Posted by nikes90 on Fri, 04 Mar 2022 08:05:05 +0100
One article takes you to control goroutine more conveniently
In the last article, we talked about the concurrency toolkit core/syncx in go zero.
From the overall analysis, concurrent components mainly communicate with each other in the control program through channel + mutex.
Do not communicate by sharing memory; instead, share memory by communicating.
Do not communicate through shared memory, but ...
Posted by lotrfan on Fri, 04 Mar 2022 08:00:22 +0100
Detailed notes on the most complete C language functions in history
function
catalogue
What is a functionLibrary functionCustom functionFunction parametersfunction callNested call and chained access of functionsDeclaration and definition of functionsFunction recursion
1. What is the function
Function f(x)=2*x+1 in Mathematics
But what are the functions in C language? Defined in Wikipedia as a subroutine.
...
Posted by moleculo on Fri, 04 Mar 2022 07:55:36 +0100