• Canvas imitation sesame credit meter dial


    Hi, this is a canvas imitation Alipay sesame credit score, in fact, is an animation dashboard. First of all, the original picture: This is a screenshot of the next Alipay. Then look at the effect of my canvas implementation: <canvas id=”canvas” width=”400″ height=”700″ data-score=’724′></canvas> <!– Set data score, score range [400, 900] — > Well, […]

  • PHP + redis ordered set to achieve 24-hour ranking real-time update


    Basic introduction Redis ordered set is also a set of string type elements just like a set, and duplicate members are not allowed.The difference is that each element is associated with a score of type double. Redis is to sort the members of a set from small to large by fractions.The members of an ordered […]

  • PSI formula model / data stability index


    Since the model is developed based on the samples of a specific period, whether the model is suitable for the ethnic groups outside the development samples must be tested for stability. The population stability index (PSI) can measure the distribution differences of the scores of test samples and model development samples, and is the most […]

  • How to deeply understand the three paradigms of relational database


    This article has been included in GitHub. Welcome to star! GitHub address: https://github.com/Ziphtracks/JavaLearningmanual Database paradigm 1、 What is database paradigm When designing a relational database, we should follow different specifications to design a reasonable relational database. These different specifications are called different paradigms. The higher the paradigm, the less redundant the database. The normal form […]

  • Snake code (novice)


    The general production process is as follows: In the drawing of the entrance interface, the defined gotoxy function is used to control the cursor position, and the color function is used to change the color Draw the game interface, use the loop to draw the border and interior three times, pay attention to the horizontal […]

  • Using class weight to improve class imbalance


    AuthorCompile VKSource: analytics vidhya summary Learn how class weight optimization works and how to use sklearn to implement the same method in logistic regression or any other algorithm Learn how to overcome the problem of unbalanced class data by modifying the class weight without using any sampling method introduce The classification problem in machine learning […]

  • Python data mining – how to win the League of heroes lol? Which characteristics are more relevant to game winning


    A series of articles: Python data mining – I analyzed “ride the wind and waves sister”, found these secrets Python data mining – how to win the League of heroes lol? Which characteristics are more relevant to game winning Brief introduction to the data set, get attention, add like screenshot, add group + QQ group: […]

  • Creating a summary using NLP


    By Louis TeoCompile VKSource: towards Data Science Have you read a lot of reports, and you just want to make a quick summary of each report? Have you ever been in such a situation? Abstract has become a very helpful method to solve data problems in the 21st century. In this article, I’ll show you […]

  • Leetcode 837. New 21 | Python


    837. New 21 Title Source: leetcode https://leetcode-cn.com/problems/new-21-game subject Alice participates in a game based on the blackjack rule, which is described as follows: Alice starts with 0 and draws numbers when her score is less than k. When extracting, she randomly gets an integer from the range of [1, w] as a fraction to accumulate, […]

  • Magic change and online your synthetic watermelon, the most complete tutorial!


    This article is from 0 to 1 tutorial, so that Xiaobai can also magic change and online release belongs to your synthetic watermelon! Recently, a game called “synthetic watermelon” suddenly became popular! It seems that we really eat too much melon, this little game deeply grasp people’s heart! Of course, the game itself is very […]

  • Using Python to make age-old games, 5 minutes to achieve snake!


    The text and pictures of this article are from the Internet, only for learning and communication, and do not have any commercial use. The copyright belongs to the original author. If you have any questions, please contact us in time This article is from Tencent cloud by Python sophomoreAs a classic little game, snake came […]

  • Fire knowledge online answering activity small program


    preface November 9 is national fire protection day. The theme of this year’s fire protection activities is “pay attention to fire protection, life first”. China’s fire safety day is November 9. Fire alarm numbers are different in all countries in the world. Each country selects the number that people can remember most easily to form […]