Implementation of the Fruit Fly Optimization Algorithm (FOA) (Python with source code)
1. Implementation idea of fruit fly optimization algorithm
Fruit Fly Optimization Algorithm (FOA) is a swarm intelligence optimization algorithm proposed by Pan Wenchao in 2011. It simulates the way fruit flies in nature forage, and compares the position information of food to the optimal solution of optimization problems. The optimal soluti ...
Posted by krysco on Fri, 20 Jan 2023 04:38:33 +0300
[Application] SpringBoot -- Webflux + R2DBC to operate MySQL
Webflux overview
Simply put, Webflux is a framework for responsive programming, and its equivalent concept is SpringMVC. The difference between the two is that the Webflux framework is asynchronous and non-blocking, which can handle high concurrent requests with fewer threads.
The bottom layer of the Webflux framework adopts the Reactor r ...
Posted by NIGHTSBIRD on Thu, 19 Jan 2023 17:01:44 +0300
mysql common syntax functions
1. Generate random time
SELECT DATE_ADD('2021-01-01 00:00:00', INTERVAL FLOOR(1 + (RAND() * 10800)) SECOND )
Generate random numbers
SELECT UUID()
2. group by optimization
loose index Part of the scanned index needs to satisfy the left matching rule of the joint index. compact index Range index scan or full scan. There is a gap in ...
Posted by jmfillman on Thu, 19 Jan 2023 08:31:38 +0300
Commonly used CSS knowledge points in front-end work
css import method
inline style
<divstyle="width: 100px"></div>
inline mode
<divclass="header"></div> .header {width: 100px;}
outreach mode
<linkrel="stylesheet"href="./base.css">
Imported
// inside the less/scss file @import url("./base.css");
1.1 Text overflow ellipsis ...
Posted by parag on Thu, 19 Jan 2023 00:32:28 +0300
TwoModalBERT for role classification
Have you ever encountered a situation where you have multiple textual features in your dataset? For example, to correctly classify a message based on its context, i.e. understand the preceding message. Say we have the following dataset and need to classify it.When considering only the message, you can see that its sentiment is positive because ...
Posted by fernyburn on Wed, 18 Jan 2023 12:47:46 +0300
linux installs tesseract to support tess4j image recognition
Introduction
Because the company needs to identify the relevant information in the uploaded pictures, tees4j was chosen to implement relevant functions. It is not very good to directly identify through tess4j, so after processing the pictures through java code, use tess4j to identify them, and then deploy them to the linux server tesseract nee ...
Posted by dakkonz on Wed, 18 Jan 2023 11:38:01 +0300
AWSS3 iOS SDK tutorial
AWSS3 iOS SDK Tutorial
Create AWSServiceConfiguration
According to the documentation comments, there are two ways to create
Method 1: Customize the creation of ServiceConfiguration
Created according to AK/SK/token
AWSBasicSessionCredentialsProvider *provider = [[AWSBasicSessionCredentialsProvider alloc]
initWithAccessKey:access_ke ...
Posted by spxmgb on Wed, 18 Jan 2023 11:22:27 +0300
Common Methods for Arrays
1. Common methods of arrays
push
Syntax: array.push( data)
Function: add data to the end of the array
Return value: After appending data, the latest length of the array (length)
var arr = [1, 2, 3]
console.log(arr.push(500)) //The return value is the array length: 4
console.log(arr) //Print the original array as: [1,2,3,50 ...
Posted by Sindarin on Tue, 17 Jan 2023 16:27:08 +0300
How does Cookie session authentication work?
In Web applications, Cookie-Session is a standard authentication method. Cookies, also known as "sweet cookies". The type is "small text file", which refers to the data stored on the client side by some websites in order to identify the user. The main function of Session is to record the user's status through the serve ...
Posted by dirkdetken on Tue, 17 Jan 2023 03:41:13 +0300
Must-know git basic commands and common problems
<h2>Basic pull and upload file commands</h2>0.git pull update the file first/git pull origin dev; git status View the addition, deletion and modification status of files
1.git clone Online Inventory Address; git clone -b dev(remote branch) Link
2.git add file or folder to submit or git add .(Indicates submitting all modified ...
Posted by masson on Mon, 16 Jan 2023 06:52:23 +0300