Reality is more complicated than theory

Let's think about a practical problem. When spring comes, we are going to buy clothes. At the same time, as a clothing manufacturer, we are going to release new clothes. If you are a technical consultant of a clothing manufacturer, please analyze what kind of clothes belong to this year's fashion trend and what would you do? First of all, as a ...

Posted by RedMaster on Sat, 21 Mar 2020 02:23:30 -0700

What day of the week is a better choice for the fund?[python statistical analysis] - know

A common way of fixed investment of a fund is to apply for a fixed share of the fund from the fund company during a fixed period of time each week or month.Fund fixed investment can average costs, spread risks and achieve automatic investment, so fund fixed investment is also called "lazy investment technique".Today, we mainly use ...

Posted by poknam on Fri, 20 Mar 2020 13:33:49 -0700

Tensorflow flag design a digital recognition SPA

Effect   The web end loads the trained model, the simple model used this time, and then predicts the number and returns the result according to the image data transmitted from the front end The saved png image is converted to base64 encoding and returned. In this way, the src with img tag can display the image directly in the front end, re ...

Posted by cheeks2k on Fri, 20 Mar 2020 10:36:12 -0700

Thread & coordination & asynchrony of crawler

Thread pool from multiprocessing.dummy import Pool The callback function asynchronously performs some operation on the elements in the iteratable object Note: callback must have one parameter and only one parameter Asynchronous is mainly used in time-consuming operations from multiprocessing.dummy import Pool pool = Pool(3) # Instantiat ...

Posted by Mirkules on Fri, 20 Mar 2020 10:32:57 -0700

Redis database introduction and manual compilation and installation process

Preface This paper introduces Redis database from the origin of NoSQL, then demonstrates the process of Redis manual compilation and installation (the system version of the experimental environment is Centos7), and finally introduces the common command tools of Redis. What is NoSQL? NoSQL -- non relational SQL, non relational database. The st ...

Posted by ramzess on Fri, 20 Mar 2020 04:20:20 -0700

Convolutional Neural Network Processing Text Sequences

We previously discussed convolution neural networks, which extract features from local regions and are very effective for image recognition processing of kittens and dogs. We also discussed cyclic neural networks for text processing because the order of text is sequential.Based on the above characteristics, we consider time or the front and bac ...

Posted by babygodzilla on Wed, 18 Mar 2020 18:53:21 -0700

LDAP/SASL/GSSAPI/Kerberos programming API--krb5 client

There are two libraries available for krb5 API: MIT and Heimdal. The APIs of the two libraries are different. It is basically OK for one client's API to connect to the otherThe two kadmin libraries in API are completely incompatible. From the kadmin application tools of MIT and Heimdal, it can be seen that it is not successful to connect the k ...

Posted by AdRock on Tue, 17 Mar 2020 22:47:23 -0700

Android Platform Access to OneNET

1. Introduction to OneNET China Mobile Internet of Things Open Platform is a PaaS Internet of Things Open Platform created by China Mobile. The platform can help developers easily access and connect devices, provide comprehensive Internet of Things solutions, and realize data acquisition, data storage and data display of Internet of Things devi ...

Posted by son.of.the.morning on Tue, 17 Mar 2020 19:14:45 -0700

Nginx Security Access Configuration

Website System Security Configuration (Nginx) prevents websites from being malicious GJ s.Websites such as DDos, CC, etc.They all work the same way, sending large amounts of request data to the server. Nginx Active Defense MethodThere are two modules in Nginx that control the "number" and "speed" of accessing user connecti ...

Posted by cdjaco on Tue, 17 Mar 2020 12:28:51 -0700

Red packet rain of wechat applet implemented by css3

Recently, the company needs to do a wechat red packet rain function. The basic online search is to use canvas, which is not very skilled in canvas, so I wrote one with css. This method works well for apple, but there will be a jam situation on Android. After several optimizations, there will be a little ...

Posted by [Demonoid] on Tue, 17 Mar 2020 08:03:26 -0700