Article Introduction：Python algorithm (Algorithm) refers to an accurate and complete description of a problem-solving solution. It is a series of clear instructions for solving problems. The algorithm represents a systematic method to describe the strategic mechanism for solving problems.

2019-06-05 comment 0  3449

Article Introduction：MD5 (Message Digest Algorithm 5), translated as the fifth edition of the Message Digest Algorithm. According to convention, we reason that there may also be historical versions with names like MD2 and MD3.

2016-12-10 comment 0  1483

Article Introduction：The KMP (The Knuth-Morris-Pratt Algorithm) algorithm is used for string matching to find a given substring from a string. But it's not very easy to understand and master. Understanding the partial matching table in its concept is the key to understanding the KMP algorithm.

2019-04-30 comment 0  2047

Article Introduction：Compare two different transitive closure algorithms: Matrix Multiplication Algorithm vs Reflection Closure Algorithm The transitive closure algorithm is used to find the transitive closure of a relationship, that is, all transitive relations on the relationship. In computer science, there are many ways to implement the transitive closure algorithm. In this article, we will compare two common transitive closure algorithms: the matrix multiplication algorithm and the reflective closure algorithm. We will introduce the principles and code examples of each algorithm in detail, and compare them by performance and applicable scenarios. Matrix multiplication algorithm: The matrix multiplication algorithm is an efficient transitive closure

2024-01-13 comment 0  1147

Article Introduction：In computer science, algorithms are often categorized based on their function and data structure. Here’s a breakdown of basic algorithm types by their core functions: Searching Algorithms These algorithms help locate a specific item within a data

2024-11-03 comment 0  727

Article Introduction：Comparison of transitive closure algorithms: bottom-up algorithm vs top-down algorithm Introduction: The transitive closure algorithm is a commonly used algorithm in graph theory, which can find the transitive closure of a graph in a directed or undirected graph. In this article, we will compare two common implementation methods of the transitive closure algorithm: bottom-up algorithm and top-down algorithm, and give specific code examples. 1. Bottom-up algorithm: The bottom-up algorithm is an implementation method of the transitive closure algorithm. It constructs the transitive closure of the graph by calculating all possible paths in the graph. Its algorithm steps

2024-01-13 comment 0  923

Article Introduction：JVM memory management------Exquisite explanation of GC algorithm (copy algorithm and marking/collation algorithm)

2016-12-28 comment 0  1327

Article Introduction：MD5 Message-Digest Algorithm (English: MD5 Message-Digest Algorithm), a widely used cryptographic hash function that can produce a 128-bit (16-bit) hash value (hash value), used to ensure Information transfer is complete and consistent.

2019-09-02 comment 0  7194

Article Introduction：The five commonly used algorithms are the divide-and-conquer algorithm, the dynamic programming algorithm, the greedy algorithm, the backtracking algorithm, and the branch-and-bound algorithm. These five algorithms have many application scenarios. Most optimization problems can be solved using these algorithms, but when data Measuring hours requires no algorithm.

2020-05-12 comment 0  4820

Article Introduction：A recursive algorithm must include a termination condition and a recursive part. Recursive algorithm (English: recursion algorithm) in computer science refers to a method of solving problems by repeatedly decomposing the problem into similar sub-problems.

2019-12-11 comment 0  9987

Article Introduction：Display algorithms include graphics display algorithms, rendering algorithms, image processing algorithms, string display algorithms, etc. Detailed introduction: 1. Graphic display algorithm: used to convert graphics or image data into pixels on the screen, including scan line algorithm, Bresenham algorithm, etc.; 2. Rendering algorithm: used to generate realistic images or animations, including ray tracing , rasterization, coloring algorithms, etc.; 3. Image processing algorithms: used to enhance, filter, segment and other operations on images, including convolution, edge detection, image compression algorithms, etc.; 4. String display algorithms, etc.

2023-10-26 comment 0  1092

Article Introduction：Evolution Strategies (ES) is an optimization algorithm based on the idea of ​​evolution in nature, used to optimize mathematical functions through iterative search. It was first proposed by German scholars Rechenberg and Schwefel in the 1960s. This algorithm treats function optimization as a process of searching for the optimal solution in parameter space. It randomly selects some solutions and generates new solutions through mutation and selection operations. Unlike other evolutionary algorithms, evolutionary strategy algorithms do not use crossover operations. Through repeated iterations, the evolutionary strategy algorithm can gradually optimize the quality of the solution until the optimal solution is found. It has certain advantages in solving complex problems, high-dimensional optimization, and situations without gradient information. Evolutionary strategy algorithms in optimization problems

2024-01-24 comment 0  799

Article Introduction：The prerequisite for discussing issues is the clarification of concepts. Confusion of concepts is a major obstacle in R&D communication, which greatly affects the efficiency of communication. In the field of artificial intelligence, especially machine learning, algorithms and models are two related but different concepts. Understanding the meaning and connection between the two can make the issues we discuss more clear. What is an algorithm? In the computer field, algorithms are clearly defined. For the sake of simplicity, here is the description of the algorithm from Baidu Encyclopedia: Algorithm refers to an accurate and complete description of the problem-solving solution. It is a series of clear instructions for solving the problem. The algorithm represents a systematic method to describe the strategic mechanism for solving the problem. . In other words, for an algorithm, it can obtain the required results within a limited time for certain standardized inputs.

2023-04-10 comment 0  2558

Article Introduction：Overview of comparison and selection of PHP encryption algorithms and hash algorithms When protecting data, PHP provides many encryption algorithms and hash algorithms to ensure data security. This article will compare several common encryption algorithms and hashing algorithms, and discuss how to choose and use them in actual projects. 1. Encryption Algorithm Symmetric encryption algorithm Symmetric encryption algorithm uses the same key for encryption and decryption. In PHP, the most commonly used symmetric encryption algorithm is AES (Advanced Encryption Standard).

2023-08-17 comment 0  923

Article Introduction：This article mainly introduces the commonly used HASH algorithms in Java, and summarizes and analyzes the commonly used HASH algorithms in Java in the form of examples, including addition hash, rotation hash, FNV algorithm, RS algorithm hash, PJW algorithm, ELF algorithm, BKDR algorithm, SDBM algorithm, DJB Algorithm, DEK algorithm, AP algorithm, etc. Friends who need it can refer to it.

2017-09-29 comment 0  1786

Article Introduction：Sorting algorithm is one of the oldest and most basic topics in computer science. If you want to become a qualified programmer, you must understand and master various sorting algorithms.

2016-05-16 comment 0  1061

Article Introduction：This article mainly introduces Python graph algorithms, and analyzes in detail the graph algorithm implementation techniques in Python data structures and algorithms in the form of examples. Friends in need can refer to the following

2017-02-25 comment 0  1789

Article Introduction：PHP encryption algorithms include MD5 algorithm, SHA algorithm, AES algorithm, RSA algorithm, Base64 encoding, DES algorithm, RC4 algorithm, Blowfish algorithm, etc. Detailed introduction: 1. MD5 algorithm, used to convert data of any length into a fixed-length hash value. In PHP, you can use the md5() function to calculate the MD5 hash value of a string; 2. SHA algorithm, including SHA -1. SHA-256, SHA-512, etc. These algorithms have corresponding functions in PHP; 3. AES algorithm, etc.

2023-08-31 comment 0  1028

Article Introduction：Shortest path algorithm: Dijkstra algorithm, Bellman-Ford algorithm, Floyd algorithm and SPFA algorithm, etc. ​Among the paths that start from a vertex and reach another vertex along the edges of the graph, the path with the smallest sum of weights on each edge is called the shortest path.

2019-06-05 comment 0  37166

Article Introduction：Conventional encryption algorithms: DES encryption algorithm, AES encryption algorithm, RSA encryption algorithm, Base64 encryption algorithm, MD5 encryption algorithm, SHA1 encryption algorithm, XXXTEA encryption algorithm, etc.

2019-10-22 comment 0  9423