• ## Intelligent maze value iterative algorithm for the introduction of reinforcement learning

Time：2021-12-30

0x01 basic concept of value iteration algorithm 0x01. 1 reward To realize the value iteration, first define the value. In the maze task, you will be rewarded for reaching the goal. The reward RT given at a specific time t is called immediate reward The sum of future rewards GT is called the total reward […]

• ## Java algorithm Yi Jin Jing: common Java API tips

Time：2021-12-30

Summary:The essence of algorithm practice also lies in training programming thinking and strengthening the internal force of programmers. Therefore, give yourself the content of algorithm skills that will be continuously updated later, referred to as algorithm Yi Jin Jing. This article is shared from Huawei cloud community《Common Java API usage of < Java algorithm Yi […]

• ## Simple and practical algorithm — calculating mathematical expression

Time：2021-12-30

catalogue Algorithm overview Algorithm code (c#) Algorithm implementation Extension: use datatable Compute calculation Extensions: evaluating mathematical expressions using SQL reference material Algorithm overview Variable definition:STR mathematical expressionNote: numerical value of mathematical expressionSupport decimal, symbolOnly + – * / ()These. Calculation principle:: first convert the string of mathematical expression (infix expression) toPostfix Expression , and then […]

• ## [animation notes] binary search (half search)

Time：2021-12-29

Since entering sophomore year, I have kept learning data structures and algorithms in my heart,After all, there are too many broken things in college,I can’t help it lately. Pick up the algorithm diagram, combined with the summary on the network, and prepare for the step-by-step introduction of data structure and algorithm At present, I use […]

• ## Data mining and life

Time：2021-12-29

Data mining and life preface The purpose of writing this article is to introduce the company’s colleagues to the basic knowledge of data mining, in order to enhance everyone’s understanding and interest in data mining, apply this technology to work and life, give play to the collective wisdom and add data mining application scenarios for […]

• ## Least mean squares regression (II)

Time：2021-12-28

See this article for general LMS algorithm applications. General LMS practical application This paper designs the mathematical theory behind LMS. 1. The Least Mean Squares algorithm (LMS) SDThe steepest descent method studied is a recursive calculationSignal statistics are knownRecursive algorithm of time Wiener filter (knowledge about R och P). The problem is that this information […]

• ## Leetcode NO.119 Pascal’s triangle II (c + + implementation)

Time：2021-12-28

1. Title 1.1 English title Given an integer rowIndex, return the rowIndexth (0-indexed) row of the Pascal’s triangle. In Pascal’s triangle, each number is the sum of the two numbers directly above it as shown: 1.2 Chinese title Outputs the specified row of Yang Hui triangle 1.3 input and output input output rowIndex = 3 […]

• ## Convex optimization from getting started to giving up (directory)

Time：2021-12-27

Convex optimization from getting started to giving up 00 convex optimization introduction 01 convex set 02 convex function 03 convex optimization problem 04 Lagrange dual problem and KKT condition 05 unconstrained optimization algorithm 06 equality constrained optimization algorithm 07 interior point method (inequality constrained optimization algorithm) 08-admm algorithm Boyd and Vandenberghe’s textbook is used in […]

• ## Baidu intelligent skycloud has been awarded 2021 Gold Award for new technologies, products and new applications of the world’s Internet of things.

Time：2021-12-27

China City home furnishing Intelligent Cloud smart city heating algorithm and control platform project has been selected by the China Electronic Information Industry Development Research Institute as the “gold medal project of new technologies and new products and new application achievements of the 2021 World Internet of things”. It was selected as the “Internet of […]

• ## Question 23: how to understand insertion sorting?

Time：2021-12-27

What is insert sort? Is to take a number from left to right in the array, and then put it in the appropriate position Algorithm description Suppose there are two regions in an array 5, 8, 2, 3, 1 The ordered region is empty, and the disordered region is 5, 8, 2, 3, 1 ———————————– […]

• ## Krypton letter team won again! The top three of the fourth OLAP algorithm competition of Analysys was born!

Time：2021-12-26

On October 24,The 4th OLAP algorithm competition of AnalysysOfficially concluded, this competition is sponsored by ucloud, supported by technical media such as Sifu, InfoQ and CSDN. It lasted more than 40 days and experienced many links such as competition registration, test experience and formal competition,Krypton letter team, volcanic soy sauce team, Qianqian teamStand out and […]

• ## Question 24: how to understand Hill ranking?

Time：2021-12-26

When I first saw this, I looked confused. After reading several other people’s articles, I understood it Before understanding this hill sort, I want to play a small game. Everyone should have played it. Hill sort principle is similar to this little game Xiao Ming (player), Angela (questioner) Angela: please guess a number between 0 […]