Introduction to temporary tablespaces of PostgreSQL and Greenplum

The temporary tablespace of PostgreSQL, through the parameter temp_tablespaces are configured. PostgreSQL allows users to configure multiple temporary tablespaces. When configuring multiple temporary tablespaces, use commas to separate them. If temp is not configured_ Tablespaces parameter. The temporary tablespace corresponds to the default ...

Posted by ajdegans on Fri, 26 Jun 2020 04:42:55 +0200

Redis Basic Application Demo

Article catalog 1, Redis common command operations 1. String type 2. Hash type 3. List type list 4. Unordered set 5. Ordered sort 2, Distributed shared session 3, Remote login reminder offline 4, Register SMS verification code 1, Redis common command operations 1. String type Assignment comm ...

Posted by sosha on Thu, 25 Jun 2020 09:51:27 +0200

LeNet-5 migration case of convolution neural network

Abstract: LeNet-5 is a convolutional neural network designed by Yann LeCun in 1998 for handwritten digit recognition. Most American banks used it to recognize handwritten digits on cheques. It is one of the most representative experimental systems in the early convolutional neural network. It can be said that LeNet-5 is equivalent to "H ...

Posted by lauriedunsire on Wed, 24 Jun 2020 05:54:39 +0200

magical! The new objects can also be managed by the Spring container!

It's reasonable to say that the objects from new have nothing to do with containers, but in the Spring Security framework, there are many new objects that can also be managed by containers, so how does it do it? Today, I'd like to talk with you about a little cold topic. What is the use of ObjectPostProcessor in Spring Security? This is the 32n ...

Posted by Dynamis on Tue, 23 Jun 2020 06:35:34 +0200

NetCat (nc command) for Linux command learning

brief introduction NetCat, known as "Swiss Army Knife" in network tools, is short and practical (1.84 version is no more than 25k, old version or reduced version or even smaller), and is designed as a simple and reliable network tool, which can transmit read and write data through TCP or UDP ...

Posted by sargenle on Mon, 22 Jun 2020 09:48:38 +0200

Case: Implementing linear regression

Rimeng Society AI: Keras PyTorch MXNet TensorFlow PaddlePaddle Deep Learning Actual Warfare (Update from time to time) 2.4 Cases: Realizing Linear Regression Learning Objectives target Applying op's name parameter to modify op's name Apply variable_scope implementation diagram program sco ...

Posted by Derleek on Sat, 20 Jun 2020 03:41:02 +0200

Session, Tensor, Variable OP

Rimeng Society AI: Keras PyTorch MXNet TensorFlow PaddlePaddle Deep Learning Actual Warfare (Update from time to time) 2.3 Sessions, Tensors, Variables OP Learning Objectives target applicationSess.runOr eval runs the diagram program and gets the tensor value Apply feed_dict mechanism to ...

Posted by Pinkerbot on Sat, 20 Jun 2020 03:37:48 +0200

A variety of encryption schemes coexist in Spring Security, which is a powerful tool for the integration of old and dilapidated systems!

About the problem of password encryption, brother song has talked with you before. For reference: Two ways of password encryption in Spring Boot! In this article, song introduced two kinds of encryption schemes, but both of them are used independently! Can multiple password encryption schemes exist in the same project at the same time? The an ...

Posted by FlipinMonkeyPie on Thu, 18 Jun 2020 04:58:42 +0200

mybatis source code - initialization configuration

Our debugging environment: Debug code: public class MyaaTest { public static void main(String[]args) { String resource = "config.xml"; try { //1. Read configuration file InputStream in= Resources.getResourceAsStream(resource); SqlSessionFactor ...

Posted by gere06 on Wed, 17 Jun 2020 07:42:02 +0200

Reproduction of vgg16 for picture recognition

1. Structure The image above is a replication of all the files of vgg16. The data folder is a test image. This replication only calls another trained model to identify the picture.vgg16.py reproduces the network structure of vgg16 and imports trained model parameters.Utils.pyFor input picture preprocessing program,Nclasses.py Is the label gi ...

Posted by phpnwx on Tue, 16 Jun 2020 02:38:27 +0200