Python Quick Start Manual for Matlab users

What is Matlab? It is the classic VB in the field of computing. They are at the bottom of the contempt chain in their respective fields. Of course, this disdain chain is the disdain chain of programmers. For those who do not want to have an in-depth understanding of programming, they can ignore it, and there is no need to continue reading ...

Posted by nosher on Thu, 28 Oct 2021 21:33:28 -0700

6 mistakes easy for beginners of pandas

Here we discuss six mistakes that novices are prone to make. These mistakes have nothing to do with the API or syntax of the tools you use, but are directly related to your level of knowledge and experience. In practice, if these problems occur, there may not be any error prompt, but it will bring us great trouble in application. Read large fi ...

Posted by ferronrsmith on Thu, 28 Oct 2021 17:41:11 -0700

numpy hand tear logistic regression classification MNIST formula + code

brief introduction Although logical regression bears the name of regression, it actually does classification. The general form of regression can be expressed as: f ( x ) = ...

Posted by kernelgpf on Thu, 28 Oct 2021 06:23:22 -0700

Concurrent programming multi process programming (python version)

catalogue 1 overview of Python multiprocess programming 2 needs and programmes Background: Requirements: Solution: Problems and solutions to be solved: 3 complete code 1 overview of Python multiprocess programming Multithreading in Python cannot take advantage of multi-core. If you want to make full use of the resources of multi-core ...

Posted by guzman-el-bueno on Thu, 28 Oct 2021 03:53:37 -0700

Probability model evaluation index

Source: Data STUDIO Author: Yun Duojun 1. Brier Score The accuracy of probability prediction is called "calibration degree", which is a way to measure the difference between the probability predicted by the algorithm and the real result. A commonly used indicator is called Brill score, which is calculated as the mean square err ...

Posted by tomz0r on Thu, 28 Oct 2021 02:00:07 -0700

Target detection tricks (based on detectron2)

Target detection tricks (based on detectron2) Try correctly Cutting Because the target is too small relative to the whole picture, the data is cropped (in addition to the cutting size, the overlapping size should also be paid attention to. The overlapping size should be slightly larger. Try to keep each target intact so as not to damage the ...

Posted by nocturne on Thu, 28 Oct 2021 01:31:35 -0700

2021 most complete Python interface test automation tutorial [learning materials attached]

[Abstract] interface definition: interface generally has two meanings. One is API (Application Programming Interface), which is a set of definitions, programs and protocols to realize the mutual communication between computer software through API interface. The other is interface, which is a specification of object-oriented languages such as ja ...

Posted by daredevil88 on Thu, 28 Oct 2021 00:09:07 -0700

Reappearance of TUPE paper RETHINKING POSITIONAL ENCODING IN LANGUAGE PRE-TRAINING

Reproduction of paper TUPE After the original attention calculation formula is divided into four parts, it is found that the middle two parts (word to position, position to word) have no obvious effect on recognition. In the first part (word to word) and the fourth part, the paper proposes to separate the location information from the word emb ...

Posted by alienmojo on Wed, 27 Oct 2021 22:37:02 -0700

About various problems encountered by MacBook Pro running XGBoost

preface For work reasons, you need to contact the XGBoost model. For convenience, in addition to the Linux server provided by the company, I also installed XGBoost locally. Since then, I have encountered various problems and even reinstalled anaconda3, which is a history of blood and tears. Therefore, I would like to record all kinds of pr ...

Posted by coldwerturkey on Wed, 27 Oct 2021 21:17:17 -0700

11 classic use cases of list and tuple

Hello, I'm brother Deng, Today, I'd like to introduce 11 classic use cases of list and tuple. Let's have a look! 1. Judge whether there are duplicate elements in the list We can implement an is to judge whether it is repeated or not_ The duplicated method uses the count method encapsulated in the list to judge the occurrence times of each ...

Posted by r00tk1LL on Wed, 27 Oct 2021 16:44:06 -0700