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Algorithms

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by Arthur V. Ratz
In this article we'll demonstrate the implementation of k-means clustering algorithm to produce recommendations.
by Unknown Author
Development in C# without care of resource consumption can lead to overloading the system. This article describes a case with large waste of memory and CPU time and how to avoid it.
by jurhas
A small simulator for a 6 axis articulated robot
by Unknown Author
Best Practice For Opinion and Text Mining Based on Naïve Bayesian Classifier. This article will explain complete and describe detail by detail and step by step computational matters.

Latest Articles

by Mohammad Nasirifar
My status report while trying to understand why the exact same code Runs 1000s (not kidding) of times slower in Python
by Jonas Vago
Application to show how to zigzag order a matrix
by Arthur V. Ratz
I will discuss how to deliver the modern code, using Intel C++ Compiler and OpenMP 4.5 library, that implements the parallel "stable" three-way quicksort, based on the parallel code that has already been discussed in the previous article.
by Unknown Author
Logistic regression, back propagation and support vector machine in comparison on the Iris data set

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Algorithms 

10 Aug 2010
Unknown Author
Understanding of Example Based Machine Translation (EBMT) system and how to create your own using exisiting tools
7 Sep 2010
Unknown Author
This article presents an algorithm and data structures to implement auto-tiling as seen in RPG Maker, the Starcraft level editor, etc.
20 Jun 2012
Unknown Author
This is an alternative for "Converting Postfix Expressions to Infix"
31 Jul 2012
Unknown Author
How to calculate a reverbration time in a room
13 Oct 2013
Unknown Author
A simple, portable yet efficient Quicksort implementation in C
17 Feb 2015
DrABELL
Educational software package for Microsoft Windows® 7/8 contains “5-in-1” School Math Calculators and Equation Solvers intended for students and educators
7 Nov 2012
Unknown Author
The algorithm described herein is designed to implement sorting of variable length strings in O(n) time.
4 Sep 2013
Unknown Author
You would never want to use another photo editor in your AIO again
29 Sep 2013
Amit Bezalel
Transfering subtitle synchronization from one subtitle file to another
18 Aug 2014
José Cintra
Some suggestions of algorithms for solving the Pascal Triangle, addressing iterative, recursive and functional paradigms
8 Feb 2015
Emiliano Musso
How to apply GA techniques fo solving problems in VB.NET. The example shows how to create solutions for a 2D maze, which will evolve to find the shortest path between two points.
28 Aug 2015
Unknown Author
Development in C# without care of resource consumption can lead to overloading the system. This article describes a case with large waste of memory and CPU time and how to avoid it.
27 Oct 2015
Unknown Author
A faster method for performing interval arithmetic
4 Mar 2016
Unknown Author
This article is based on Chapter 2 of my unpublished textbook “Applied Algorithms and Data Structures.”
24 Apr 2016
raddevus
Step by step walk-through with progressive versions of code downloads will take you from the basics of drawing on HTML5 Canvas while studying an interesting point-connecting algorithm.
26 Apr 2016
raddevus
Adding more methods (select points, draw triangles, etc) which allow us to do some specialized drawing on the HTML5 Canvas so we can investigate the Calc Convex Hull algorithm.
3 Aug 2016
Vyacheslav Chernykh
F#-implementation of algorithm for incremental construction of minimal deterministic finite automata through adding and removing strings.
7 Jun 2016
Unknown Author
cobj is a preprocessor based generator for interface based polymorphism
21 Jun 2016
Dave “DWC” Curry
This tutorial will show you a good starting point for a WPF style framework which aims to make creating and maintaining Excel-worksheet-forms easier.
25 Dec 2016
Arthur V. Ratz
In this article we'll demonstrate the implementation of k-means clustering algorithm to produce recommendations.
6 Sep 2016
George Swan
An articial life algorithm that attempts to solve a problem by flying a swarm of entities through a range of possible solutions where each entity is guided by the performance of other members of the swarm
9 Sep 2018
Unknown Author
Finding a fundamental Cycle Set forming a complete basis to enumerate all cycles of a given undirected graph
29 Nov 2016
Miguel Diaz Kusztrich
Adding tools to help estimate the correct delay and embedding dimension
26 Apr 2018
Unknown Author
Best Practice For Opinion and Text Mining Based on Naïve Bayesian Classifier. This article will explain complete and describe detail by detail and step by step computational matters.
29 Aug 2017
Arthur V. Ratz
This article demonstrates the development of code in C# implementing famous k-means clustering algorithm to perform graphical raster image segmentation.
2 Dec 2017
Alvaro Carballo Garcia
Library extending the .NET numeric support
27 Nov 2017
Miguel Diaz Kusztrich
An infinite set of biological shape fractals in the complex plain
27 Apr 2018
Arthur V. Ratz
In this article, we will formulate and discuss CLOPE data mining clustering algorithm that allows to drastically increase the quality and efficiency of categorized data clustering and can be easily used for recommendation-specific purposes
28 May 2018
Unknown Author
Using swap etc. from generic code must be done properly. Here’s how to fix it for good.
1 Jun 2018
Alvaro Carballo Garcia
Comprehensive unit parsing library
26 Nov 2018
Jonas Selling
Clarifying the use of multi-pass filter cutoff correction
25 Nov 2018
Unknown Author
What performance can we get from C++17 parallel algorithms?
30 Dec 2018
Arthur V. Ratz
In this article, we will demonstrate how to compute full SVD of a given matrix A and discuss about the code in C++11 implementing the full SVD computation by using simple iteration and Jordan-Gaussian methods.
14 Dec 2018
Unknown Author
Simple Linear Regression from scratch in Rust
13 Mar 2019
Unknown Author
Any deterministic game can be broken down to its core functionalities. By understanding them, one can implement fundamental algorithms such as Minimax (with alpha beta pruning), thus paving the way towards a better AI opponent.
6 Feb 2019
Mark H Bishop
Computational classes and a GUI interface to illustrate usage
29 May 2019
Unknown Author
A little review of Trial Division algorithm
20 Jul 2019
Arthur V. Ratz
The audience of this article's readers will find out how to perform association rules learning (ARL) by using FPGrowth algorithm, that serves as an alternative to the famous Apriori and ECLAT algorithms.
30 Apr 2020
Unknown Author
Logistic regression, back propagation and support vector machine in comparison on the Iris data set
7 May 2020
Arthur V. Ratz
I will discuss how to deliver the modern code, using Intel C++ Compiler and OpenMP 4.5 library, that implements the parallel "stable" three-way quicksort, based on the parallel code that has already been discussed in the previous article.
14 Mar 2017
Thomas Daniels
This article is a solution to CodeProject's Weekly Challenge: "A knight on a chess board".
3 Apr 2019
Unknown Author
Best approach for having more secure channel to transfer user information throughout the web
18 Feb 2014
Paul Lawitzki
This article presents one approach to increase the quality of rotation information gathered from different sensor sources using a simple sensor fusion algorithm, specifically on an Android device.
14 Aug 2015
DrABELL
This is an alternative for "Fastest method to trim all whitespace from Strings in .NET"
1 Mar 2018
Unknown Author, Unknown Author
Many improvements over a pretty new and unknown very fast 2D Convex Hull algorithm and much more.
29 Jan 2017
Miguel Diaz Kusztrich
Demonstrate or refute a conclusion automatically from a series of premises
23 Apr 2013
Unknown Author
How to teach a program to recognize something within a video stream.
23 Dec 2014
César de Souza
Demonstration of automatic image stitching by interest point matching using the Accord and AForge.NET Frameworks
7 Jun 2016
Unknown Author
This article is about collision detection for convex polytopes using the simplex method.
14 May 2012
Unknown Author
Make floating point equality and relation operators reliable based on a comparison epsilon value.
10 Dec 2015
Unknown Author
This article describes the C# implementation for a high-performance role-based access control list.
28 Nov 2014
Omar Gameel Salem
Reliable transmission of bulk data over lossy connection without worrying about packets loss
10 Jul 2014
Unknown Author
Using JavaScript for oAuth with three major identity providers: Facebook, Google, and Twitter.
31 Jul 2015
Unknown Author
A circular array based lock-free queue with no memory allocation on the heap and no ABA problem
10 Jan 2017
Jakub Szymanowski
The article presents idea and implementation of fundamental algorithms in image processing.
3 Apr 2014
Unknown Author
Using call stacks, rather than Regular Expression, to deconstruct mathematical formulae and calculate values.
27 May 2014
Unknown Author
This article is written to demonstrate how could we use genetic algorithm to solve a NP-Complete problem, I used fixture generation problem as sample.
3 Apr 2019
Unknown Author
This article provides python code for random forest, one of the popular machine learning algorithms in an easy and simple way.
20 Jun 2013
Unknown Author
This article discusses the implementation and use of a fast alternative to dynamic_cast, Priori.
9 Aug 2016
Alberto Montibelli
Application for solving Bin Packing and Cutting Stock problem
6 Nov 2014
Jakub Szymanowski
Article presents the problem of the detection and cancelation of impulse noise in acoustic signals using an Exponentially Weighted Least Squares (EWLS) and next step error prediction analysis.
14 Jun 2017
Andy Allinger
Introduces data clustering and the k-means++ algorithm
4 Oct 2017
Unknown Author
A robust framework for complete implementation of Finite Element Analysis in VB.Net
20 Oct 2019
Unknown Author
The algorithm presented by Radhakrishnan, et al., originally used to segment well logs for the oil industry, has been ported to C and C#.
14 Nov 2016
Mehedi Shams
An eye-teaser to tease your eyes, see if you can beat it!
13 Nov 2014
Mark H Bishop
This article presents a Java example application that performs discrete wavelet transforms.
3 Jul 2012
Unknown Author
Maintaining code with complex permissions tends to be difficult, because the code can be distributed across multiple classes. By embedding permissions directly on methods and properties within a class, code is reduced and maintainability is simplified.
20 Jul 2019
Arthur V. Ratz
The audience of this article's readers will find out how to perform association rules learning (ARL) by using the scalable optimized Apriori algorithm, discussed.
2 Jan 2019
Unknown Author, Miguel Angel Medina Pérez, Unknown Author, Unknown Author
In this article, we introduce a framework in C# for fingerprint verification, we briefly explain how to perform fingerprint verification experiments and how to integrate your algorithms to the framework.
1 Jul 2015
Woong Gyu La
This article explains 10 rules (steps) for replacing the recursive functions using stack and while-loop to avoid the stack-overflow.
21 Jun 2013
Lipman Roi
An algorithm which automatically generates circular mazes.
30 Jan 2012
Unknown Author
UI and code-behind is executed in different threads. Long running processes need asynchronous execution. This artice shows a way of doing this in a ViewModel approach.
7 Oct 2018
Unknown Author
A graphical binary tree. Features: add, remove, or search for a node. Recursive algorithm has been used
21 Jan 2013
Unknown Author
How to manage state and simulate behavior against the system under test.
21 Sep 2017
Andy Bantly
Visualizing the Mandelbrot set using multiple threads of execution.
7 Dec 2010
Unknown Author
Build better schema for rapid data model prototyping.
5 Oct 2010
#realJSOP
One way to create a completely random encryption key, and sharing it with a client application
9 Apr 2015
Thomas Daniels
An algorithm to classify whether text is gibberish or not, and an implementation in C# and Python.
29 Oct 2013
Unknown Author
A tutorial on basic data structures and JavaScript.
2 Feb 2011
Unknown Author
Assembler and Simulator for Don Knuth's MIX Computer from The Art of Computer Programming.
24 Jan 2012
Unknown Author
Removing noise from the Kinect Depth Frames in real-time using pixel filters and weighted moving average techniques.
2 Dec 2014
César de Souza
In a previous article, we discussed how to perform the recognition of handwritten digits using Kernel Discriminant Analysis. In this article, we will discuss some techniques to do it using Kernel Support Vector Machines.
11 May 2011
Unknown Author
Draws sets of tree nodes in a vertical way. Allows to Export an Image to SVG.
22 Jan 2012
Unknown Author
Implementation of Wikipedia’s “Naive Bayes classifier Algorithm”.
26 Apr 2016
Unknown Author
How to choose the right data structure for a collection of elements
11 Feb 2014
Unknown Author
This project will give you the tools needed to compress and decompress files using the Deflate method of compression, and to read and write standard Zip files.
9 May 2016
Alexandr Surkov
Principles of video analysis
28 Jul 2014
Unknown Author
This article explains the concept of graph coloring and how to use graph coloring to solve Sudoku Puzzles.
24 Feb 2012
Unknown Author
An introduction to numerical solver algorithms with general purpose demonstration code.
24 Oct 2017
Satprem Pamudurthy
This article examines some of the use cases for memoization and shows that a tightly-coupled implementation does not scale well to new applications. It then presents a modular design for a C++ memoization framework that is generic, efficient and extensible to new applications.
21 Jun 2017
Unknown Author
Implementation of a polynomial time algorithm searching Hamilton cycles in an undirected graph
12 Aug 2012
Sergey Vystoropskiy
Steiner problem solution.
9 Mar 2011
Unknown Author
This code performs a fuzzy C-means clustering and segmentation of color images, and can be used for feature extraction.
20 Jul 2015
Unknown Author
Hands on tutorial of implementing batch gradient descent to solve a linear regression problem in Matlab
21 Aug 2012
Unknown Author
Most programming resources are wrong when comparing linked-list to vector. Here you can read and understand how they are wrong and why linked-list is (mostly) to be avoided.
18 Jun 2012
Petr Ivankov
Applications of abstract math theories to practice
10 Jun 2019
Viral Surani
This article is a first article of a series called Keep It Simple. This article is about How we can create reusable component of partially common operation (method) using Strategy Design Pattern. We will see the need of Strategy Design Pattern.
24 Nov 2014
Unknown Author
Pyramidal Kanade Lucas optical flow tracker
21 Apr 2018
Unknown Author
This article shows how to use Winforms, WPF and C# to create a File Explorer Clone with Tabs and an extremely fast parallel file search utility.
25 Jun 2011
Unknown Author
A C# code for solving eight queens puzzle using genetic algorithm
26 May 2014
Unknown Author
Solution of the Towers of Hanoi problem.
31 Aug 2015
Unknown Author
Efficient Quicksort methods for sorting arrays with lots of duplicate elements
27 Jul 2011
Unknown Author
Solution to Finding Sophie puzzle
23 Dec 2015
Shvetsov Evgeniy
Helper functions to deal with the individual bits & digits, hashing and other
7 Jun 2012
AndyUk06
A recursive algorithm to find all paths between communicating network nodes.
5 Jul 2016
T. Herselman
2 years ago I went OCD on memcpy/memmove; and wrote over 140 variations (80,000 lines of code) of memmove; testing, disassembling, optimizing and benchmarking them on multiple machines. I never released the article or the code; until now! So I need to do it before I loose my mind!
10 May 2012
Unknown Author
This is an alternative for "From one number system to another"
28 Nov 2010
Unknown Author
Engine in C# which generates Linq Expressions runtime based on simple scripts
17 Jun 2012
Unknown Author
1 alternative  
This article provides a general algorithm and a C# implementation for converting expressions written in postfix or reverse Polish notation to infix.
30 Dec 2015
D Sarthi Maheshwari
A look at possible parallel-producer-consumer patterns. (Final Part)
20 Nov 2014
Vadim Stadnik
Generality and efficiency of a semigroup in C++ are achieved by using an augmented B+ tree. Basic and advanced applications of such a semigroup are discussed.
13 Feb 2017
Unknown Author
In this post, we learn about algorithms that help implement ML functions.
30 Nov 2016
Dino Konstantopoulos
Running Theano with an Nvidia 1070 GPU on Windows 10, with CUDA 8 and Visual Studio 2015
1 Feb 2012
Unknown Author
ID3 Decision Tree Algorithm - Part 1 (Attribute Selection Basic Information)
30 Sep 2011
Unknown Author
Using parallel implementations of SqlBulkCopy to achieve fast data transfer from a single XML source into multiple tables.
22 Apr 2013
Unknown Author
Arbitrary precision calculations
27 Apr 2016
raddevus
We learn how to generate random points (easy) and we enable functionality which allows the user to grab any point on the grid and move it around in real-time (see animated gif).
4 Sep 2015
Mr.PoorEnglish
Usage of Linq and anonymous Methods help keep code briefly
10 Jul 2016
Perić Željko
1 alternative  
Developing and implementation of algorithm for converting number from one to another positional number system
3 Nov 2010
Unknown Author
.NET delegates and Generics allow for an elegant implementation of the Command pattern.
28 Aug 2016
Halit Yurttaş
Repository Pattern sample over Multiple Datasource or Resource on Domain Object Model
3 Jan 2011
Unknown Author
Finds the least common ancestor in a tree
21 Jan 2017
Michael_Jacobsen
Encryption algorithm based on key self-mutation. Complete source code and samples.
22 Mar 2015
Unknown Author
The aim of this post is to give a short overview of the subject, summarizing basic concepts.
6 Jul 2016
Victor Soldatov
A coarse approach to operate huge integers.
27 Jan 2017
Unknown Author
This short article provides a method of calculating nth binary palindrome using some math in C# code.
18 May 2010
Unknown Author
This article has the code of QuickSort, MergeSort, BubbleSort, HeapSort
14 Nov 2010
Unknown Author
One of the best methods for solving approximate string matching problem
21 Feb 2016
Shvetsov Evgeniy
String class with the auto. managed memory pool and performance tweaks + support modules
14 Jul 2013
Sudhir Tiwari
8/15 puzzle using A* (A Star) algorithm.
11 Aug 2011
Unknown Author
Informed search algorithms to solve Sudoku Samurai
30 Dec 2010
Unknown Author
Yet another implementation to enumerate files
21 Jan 2014
Unknown Author
A brief overview on mathematical implementations with programming language
12 Mar 2012
Unknown Author
Simo Sort a New Sorting algorithm C++ Binary Value Numbers Sort Elements with Low Variance
20 Sep 2015
Unknown Author
A software which provides user the option to create and send meeting minutes using template, mark attendees, create next followup meeting , assign tasks to people - all from a single consolidated screen.
24 Jul 2011
Unknown Author
This article solves a maze problem with Informed Search
14 Nov 2012
Unknown Author
A clean version of merge sort algorithm, implemented with classes and objects instead of the usual, unreadable big function.
5 Nov 2012
Jacob F. W.
Learn the Secrets of the Universe
1 Dec 2010
Unknown Author
A standard in-memory generic .NET queue that, when the configurable overflow limit is reached, will start using MSMQ as a backend to mitigate the issues with memory usage.
6 Feb 2018
raddevus
Entry in the Artificial Intelligence and Machine Learning Contest. Here's how I learned / guessed how to find spam.
15 Apr 2014
Mark Harker
In this article I would like to discuss how you can find all non-simple paths from a starting node to an end node in a directed graph.
26 Sep 2010
Unknown Author
.NET 4 finally allows to define polymorphic extension visitors
23 Apr 2013
Unknown Author
For beginners, Recursive introduction, Examples, Benefits and Defects. A part of Data structure.
10 Jul 2015
darrellp
A framework for easily solving programming challenges from competitive coding sites
13 Oct 2013
Unknown Author
StrategyThe Strategy design pattern allows you to use multiple algorithms interchangeably.  One reason you might use a Strategy Pattern is to
7 May 2010
Unknown Author
The following article describes C# implementation of various basic and advanced operations including some of the programming problems involving singly linked list
28 Aug 2015
InvisibleMedia
Defining innovation beyond the limits of Chomsky
2 Jun 2010
Unknown Author
Highlights the differences in how you create an XOR network in Neuroph, Encog and JOONE
25 Sep 2012
gbenussi
This article show how we optimize a Primality Test for know if a number is prime or not, and also presents an algorithms (Sieve of Eratosthenes) for calculating the prime numbers for a numbers less than or equal a given numbers efficiently.
2 Dec 2016
Tung.Nguyen.2k
How to implement B-Tree's searching, insertion and deletion in Java
4 Mar 2014
Unknown Author
Basic tool for the translation of DNA
3 Apr 2016
Unknown Author
Leverage probabilistic data structures when dealing with large datasets
7 Aug 2014
Unknown Author
This gives the optimal strategy to solve the famous Bridge Crossing Puzzle in generalized way.
22 Nov 2012
Jacob F. W.
A Simple But Surprisingly Effective Random Number Generator
21 Feb 2018
Unknown Author
To optimize, or not to optimize, that is the question...
10 Jul 2016
Ramneekkalra
This article will surely give an idea how to develop a self-controlled, self-connected smart home/building.
25 Jan 2016
Vadim Stadnik
This article explains fast sequential summation algorithms through the comparison of two representations of a binary tree: a linked structure of nodes and an array.
16 Dec 2010
Unknown Author
Overcoming limitations of: Enhanced String Handling
22 Jul 2017
InvisibleMedia
An algorithm for sorting integers with a complexity less than O(n log (n))
14 Jul 2016
dcmuggins
Bubble Sort is great...and terrible at the same time.
19 Nov 2017
Ivan Yakimov
In this article, I'd like to show a simple algorithm for approximate pattern matching.
25 Nov 2018
Unknown Author
An introduction to the SVM and the simplified SMO algorithm
14 Jun 2018
paolo guccini
How to use the Microsoft Interop/Automation to implement parallel research of a Microsoft Office file password.
6 Jan 2011
Unknown Author
Some things we can do to make QuickSort more efficient
18 May 2010
Unknown Author
Code illustrations of various string reversal algorithms in C#
25 May 2016
Shvetsov Evgeniy
Numbers (positive AND negative integral/fractional) to english/russian words
24 Feb 2019
Unknown Author
An unbalanced basic recursive Binary Search Tree for Excel VBA with functions (insert, search, delete, in order, pre-order, post-order, minimum, and maximum)
30 May 2019
Unknown Author
Integer factorization: Optimizing small factors checking
30 Oct 2019
Wayne Applebaum
Discussion of the issues of identifying adverse drug effects and how machine learn and big data techniques can solve for them.
15 Jul 2018
Unknown Author
Find the first number k divisible by given number n (extended approach)
20 Nov 2018
Apriorit Inc, Unknown Author
Find out approaches which you can use to improve runtime algorithms for zero-day threat detection
3 Nov 2016
Unknown Author
Get Results with the Intel® Data Analytics Acceleration Library and the Latest Intel® Xeon Phi™ Processor
17 Nov 2015
Unknown Author
My deep dive into Rogue Wave’s CodeDynamics product was to address a challenge I had been facing since my college days: the debugging of a genetic algorithms (GA) application.