Visual C# .NET » Algorithms

We have 126 Algorithms tutorials, you can see below:


A Deterministic Finite Automaton Class in C#


A simple C# class implementation of a DFA for testing purposes.


Details  •  Read Tutorial  •  Views: 525  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 12:18

C# Matrix Library


A C# library for basic numerical linear algebra.


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Art Gallery Problem: polygon triangulation & 3-coloring


This is solution implementation to well-known art gallery problem using polygon triangulation and 3-coloring methods


Details  •  Read Tutorial  •  Views: 483  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 12:15

Sorting with Objects on multiple fields


This article shows how to apply sorting on objects


Details  •  Read Tutorial  •  Views: 521  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 12:13

Password Manager,Automatic Login Application to fill login forms , usernames and passwords


this article will demonstrate the logic of recording and then embedding login information in web pages


Details  •  Read Tutorial  •  Views: 444  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 12:11

Maze Solver (shortest path finder)


An article on finding shortest path in a 2D maze.


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A* algorithm implementation in C#


Optimized A* algorithm implementation plus front-end


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AI : Neural Network for beginners (Part 1 of 3)


AI : An introduction into Neural Networks


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Solving a differential equation


How to numerically solve first and second order differential equations with initial conditions


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Inference in Belief Networks


A C# implementation of bucket elimination algorithm for inference in belief networks.


Details  •  Read Tutorial  •  Views: 318  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 11:59

AForge.NET open source framework


The article describes an open source C# framework for researchers in the areas of Computer Vision and Artificial Intelligence - image processing, neural networks, genetic algorithms, etc.


Details  •  Read Tutorial  •  Views: 504  •  Rate: 4 (1 votes)  •  Jun 06 2007 - 11:58

Genetics Dot Net - The Basics


Introduction to genetic algorithms.


Details  •  Read Tutorial  •  Views: 426  •  Rate: 0 (0 votes)  •  Jun 06 2007 - 11:57

RC4 Encryption Algorithm: C# Version


C# version of RC4 encryption algorithm.


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A .NET Path Finder Library


This is a .NET .DLL that currently contains one type called SimplePathFinder, it is simple and easy to use, great for A* beginners.


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Bind Nested Tree view from database


Bind Nested Tree View


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A Generic Diff/Patch Utility written in C#


Generic Diff/Patch Utility written in C#


Details  •  Read Tutorial  •  Views: 355  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:53

Simple CSV Parser/Reader Function written in C#


This function parses string read from CSV file and returns values in ArrayList object


Details  •  Read Tutorial  •  Views: 340  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:51

SuDoku Solver and Generator


Software for playing SuDoku


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Simple Cryptographer - Simple DES/AES Implementation in C#


It\'s very simple and not focus on performance, but i think that it is simple.


Details  •  Read Tutorial  •  Views: 332  •  Rate: 5 (1 votes)  •  Apr 18 2007 - 17:49

Binary Search Made Easy


How to easily implement a binary search tree in your .NET projects


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Encrypt and Decrypt a string


In this article you can encrypt a string and decrypt it again


Details  •  Read Tutorial  •  Views: 357  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:48

Photometric Normalisation Algorithms


Pre-processing faces images in order to increase the performance of verification and recognition algorithms


Details  •  Read Tutorial  •  Views: 230  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:47

Simulated Annealing example in C#


Artificial intelligence algorithm: simulated annealing.


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Find the nearest color with C# - Using the Euclidean distance between two colors


A short method to find the nearest color


Details  •  Read Tutorial  •  Views: 287  •  Rate: 0 (1 votes)  •  Apr 18 2007 - 17:46

Area Based Motion Detection- Boss Watcher


Detect and alert according to predefined areas in motion pictures- Alert when smoebody passes the door, etc.


Details  •  Read Tutorial  •  Views: 257  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:46

GraphSynth - design, implement, and test graph grammars


GraphSynth is the first publicly available approach to creating graph grammars.


Details  •  Read Tutorial  •  Views: 245  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:45

Estimating distances in Project Hoshimi


An article explaining the different distance functions usable in Project Hoshimi.


Details  •  Read Tutorial  •  Views: 184  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:44

Create Postfix from infix experssion.


This article create postfix experssion from an infix experssion.


Details  •  Read Tutorial  •  Views: 258  •  Rate: 0 (0 votes)  •  Apr 18 2007 - 17:43

Emulating PBEWithMD5AndDES Encryption under .Net


A class to provide the same behaviour as Java\'s PBEWithMD5AndDES encryption algorithm


Details  •  Read Tutorial  •  Views: 392  •  Rate: 1 (1 votes)  •  Apr 18 2007 - 17:43

Finding the good injection point in Project Hoshimi (Part 1)


This article will explain some basic methods to compute a good injection point in Project Hoshimi.


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Mini Algebaraic Calculator 1


Very simple mathematical expression parser


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A (almost) RFC 822/2822 compliant date parser


Parse a e-mail\'s DateTime


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Stream Based Encryption for .Net


A symmetric stream-based encryption method in C# based on a rolling cipher and mod-257 multiplications


Details  •  Read Tutorial  •  Views: 423  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:15

A reusable Prefix Tree using generics in C# 2.0


An implementation of the Prefix Tree data structure using generics


Details  •  Read Tutorial  •  Views: 482  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:13

Finding the good injection point in Project Hoshimi (Part 2)


This article explains an advanced method to compute a good injection point in Project Hoshimi.


Details  •  Read Tutorial  •  Views: 387  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:11

Cribbage Hand Counting Library


A library to score cribbage hands.


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Zip/Unzip using java.util.zip .net namespace and more


Zip/Unzip using java.util.zip .net namespace and more


Details  •  Read Tutorial  •  Views: 328  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:10

Self-Organizing Feature Maps (Kohonen maps)


The article describes the Self-Organizing Feature Maps. Theory and code realization are provided


Details  •  Read Tutorial  •  Views: 406  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:09

Artificial intelligence network load balancing using Ant Colony Optimisation


Ant Colony Optimisation - A genetic algorithm deriving from ant pheromone distribution trails to route network traffic efficiantly.


Details  •  Read Tutorial  •  Views: 396  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:08

Automatic Login , How to build application that automatically fill login forms


This article will demonstrate the logic of recording and then embedding login information in web pages


Details  •  Read Tutorial  •  Views: 204  •  Rate: 0 (0 votes)  •  Apr 17 2007 - 04:07

Predictive Parser to generate syntax tree and an Intermediate code for assignment satement


This project is a compiler program that translate assignment statement into an intermediate code .


Details  •  Read Tutorial  •  Views: 427  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 06:12

Detect Encoding for in- and outgoing text


Detect the encoding of a text without BOM (Byte Order Mask) and chose the best Encoding for persistence or network transport of text


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Genetics Dot Net Two - Adaptive Programming


A Look at Adaptive programming with Genetic Algorithms


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Word stemming for German on .NET Framework


An article on word stemming algorithm, implemented for German language on the .NET framework.


Details  •  Read Tutorial  •  Views: 498  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 05:58

Boyer-Moore and related exact string matching algorithms


Implementations of Boyer-Moore and several related string matching algorithms in C# 2.0.


Details  •  Read Tutorial  •  Views: 671  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 05:57

Efficient Boyer-Moore Search in Unicode Strings


An article on implementing Boyer-Moore algorithm for Unicode strings in C#.


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Aho-Corasick string matching in C#


A C# implementation of the very efficient Aho-Corasick keyword matching algorithm with multiple keywords support.


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QuickSort Algorithm using Generics in C# 2.0


A QuickSort algorithm implementation using Generics in C# 2.0.


Details  •  Read Tutorial  •  Views: 304  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 05:55

Generic Quick Sort using anonymous methods


Shows how to implement generic methods and how to use anonymous methods in C# 2.0.


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A Dictionary Collection Sorting By Value


An article on creating a custom collection like the SortedList that sort entries by value instead of by key.


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ArrayList Sort Tutorial


Theory and summary of different sort methods.


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Extended Euclidean Alogo


To detemine multiplicative inverse.


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Evaluating Mathematical Expressions by Compiling C# Code at Runtime


A completely new way of making a mathematical expression evaluator.


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A Simple Moving Average Algorithm


A simple moving average algorithm.


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One dimensional root finding algorithms


A set of popular algorithms to solve the equation f(x)=0 in one dimension.


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ID3 Decision Tree Algorithm in C#


Sample of ID3 Decision Tree Algorithm in C#


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Working with date/time patterns


Working with date/time patterns


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Implement Phonetic ("Sounds-like") Name Searches with Double Metaphone Part V: .NET Implementation


Presents a C# implementation of Double Metaphone, for use with any of the .NET languages.


Details  •  Read Tutorial  •  Views: 346  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 05:40

Verhoeff Check Digit in C#


Calculate and verify check digits using the Verhoeff scheme.


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Code Analysis Tools - A collection of IL code analysis tools


This tool analyses the IL of a list of assemblies, looking for types, methods, and fields that are not used by another list of assemblies. This lets you see if you have unused legacy code lying around that should be cleaned up.


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A simpler C# genetic algorithm


A simple demonstration of an algorithm making good use of C# 2.0


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A C# implementation of the Twofish cipher


An article on integrating a C# implementation of the Twofish cipher into the .NET framework.


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Cyclic Redundancy Check (CRC32) HashAlgorithm


CRC32 HashAlgorithm


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http://www.codeproject.com/cs/algorithms/rc4csharp.asp


C# version of RC4 encryption algorithm.


Details  •  Read Tutorial  •  Views: 209  •  Rate: 0 (0 votes)  •  Apr 16 2007 - 05:32

ThexCS - TTH (tiger tree hash) maker in C#


Tiger Tree Hash is a common way for hashing files. It is mostly known in DirectConnect P2P network which uses it as the hash algorithm.


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2D Cramer's rule C#


Solving simultaneous equations (2D) using C#.


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How to round time by a specified number of minutes?


This is an algorithm formula to calculate round time...


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Base Conversion of Very Long Positive Integers


An algorithm to convert an integer from one base to another


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Combination Generator


A combination generator that works properly with duplicate symbols in its input.


Details  •  Read Tutorial  •  Views: 324  •  Rate: 0 (0 votes)  •  Feb 04 2007 - 10:17

Fast, memory efficient Levenshtein algorithm


A version of the Levenshtein algorithm that uses 2*Min(StrLen1,StrLen2) bytes instead of StrLen1*StrLen2 bytes.


Details  •  Read Tutorial  •  Views: 315  •  Rate: 0 (0 votes)  •  Feb 04 2007 - 10:16

Implementing C# custom expression evaluator through RPN


Implementing C# custom expression evaluator through RPN (Stack)


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An improvement on capturing similarity between strings


An improvement on capturing similarity between strings. The algorithm was developed in C#.


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How Count Sort Works


Count Sort algorithm implemented in C#.


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A Simple and Generic sorting technique for your business object collection


This article discusses sorting of a user defined collection object based on any of the properties of the business entity.


Details  •  Read Tutorial  •  Views: 237  •  Rate: 0 (0 votes)  •  Feb 04 2007 - 10:10

A QuickSort Algorithm With Customizable Swapping


Ever need to customize the swapping function when sorting? This class lets you do that.


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Sorting Algorithms In C#


A collection of sorting algorithms implementing customizable comparitor and swapper functions.


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Numeric String Sort in C#


An article on sorting strings in C# the way Windows Explorer does with file names.


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C# Image to Byte Array and Byte Array to Image Converter Class


C# Helper class to convert image to byte array and byte array to image


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Path finding in C#


A generic implementation of the A* (AStar) path finding algorithm in C#.


Details  •  Read Tutorial  •  Views: 452  •  Rate: 4 (1 votes)  •  Feb 04 2007 - 10:05

The Bridges of Königsburg


Solving the impossible! A solution to The Bridges of Königsburg.


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High Speed Prime Numbers Calculation


This article shows a high speed Prime Numbers calculation.


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Quine McKluskey Algorithm


The Quine McKluskey algorithm is the most widely used algorithm for logical function minimisation. This article proposes a learning-oriented implementation using visual Karnaugh maps to simplify data input but also with increased usability in professional applications.


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Fortune's Voronoi algorithm implemented in C#


A C# implementation of the Fortune algorithm to compute 2D Voronoi graphs.


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Volume Weighted Average Price (VWAP) Algorithm


Calculates Volume Weighted Average Price for Financial Time series.


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Combinatorial algorithms in C#


Some basic combinatorial algoritms for use in the NET framework


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Fast statistical calculations of sub matrices for image processing


Describes the summed area table algorithm of Franklin Crow.


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Option Pricing using the Binomial Tree Model in C#


Calculates the present value of an American option using the Cox-Ross-Rubenstein binomial tree model.


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Simple Parrot Turing Algorithm in C#


This article implements a simple chatbot to attempt to pass a Turing test, which fails miserably.


Details  •  Read Tutorial  •  Views: 277  •  Rate: 0 (0 votes)  •  Feb 03 2007 - 17:18

AI Search to Solve the Missionaries and Cannibals Problem


An AI search to solve the Missionaries and Cannibals problem.


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The Longest Common Substring with Maximal Consecutive


This code implements the Longest Common Sub-strings with Maximal Consecutive problem.


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Pure C# MiniLZO port


Fast stream compression using a ported minilzo for .NET.


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Unicode Optical Character Recognition


The Project is an optical character recongnition application using artificial neural networks.


Details  •  Read Tutorial  •  Views: 331  •  Rate: 5 (1 votes)  •  Feb 03 2007 - 17:15

Back to Basics - Generic Data Structures and Algorithms In .NET 2.0


Implementations of generic data structures and algorithms in .NET 2.0.


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AI - Simple Genetic Algorithm (GA) to solve a card problem


A simple Genetic Algorithm (GA) to solve a card problem.


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Generalization of a Simple Genetic Algorithm (GA)


Taking a simple genetic algorithm and constructing a framework to allow easy creation of similar algorithms.


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Evolution computations on C#


The articles describes a C# library for evolution computations and their application for several problems solving.


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The Art & Science of Storing Passwords


Three approaches to storing passwords - explained with examples.


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A Generic - Reusable Diff Algorithm in C#


A generic algorithm that can be used to find the difference between objects.


Details  •  Read Tutorial  •  Views: 245  •  Rate: 0 (0 votes)  •  Feb 03 2007 - 17:08

An O(ND) Difference Algorithm for C#


This article is about comparing text files, and the best and most famous algorithm to identify the differences between them.


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QuickLZ Pure C# Port


This article describes a C# port of the new QuickLZ compression algorithm


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Very simple A* algorithm implementation


Simple A* pathfinding algorithm implementation for beginners.


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Extended Euclidean Algorithm


This article explains how to implement Extended Euclidean Algorithm in C#.


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Public Key Token Generation Algorithm


Public Key Token is used by the .Net runtime in lot of places but its generation algorithm is not clearly mentioned in the documentation. The utility provides a feature not found in the .Net framework’s sn.exe utility, viz., generation of the Public Key Token from the Key Pair file.


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C#: A-Star is born


Understand graphs and A* path-finding algorithm with C#.


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A Simple Compiler for the Common Language Runtime


An end-to-end example of a bottom up LALR(1) compiler for a fictitious language targeting the Common Language Runtime


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A Simple C# Genetic Algorithm


In this article we shall produce a simple genetic algorithm in C#.


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ObjectComparer


Sorting arrays of objects on arbitrary fields. This article explains how to write a simple class which works with Array.Sort() to sort arrays of objects on dinamically selected fields. It's very similar to what DataView.Sort does for DataTables.


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A SoundEx implementation in .NET


Demonstrates an OO implementation of 4 SoundEx variants in .NET.


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A Generic, Reusable Diff Algorithm in C# - II


Part II of the tutorial: A reusable difference engine written in C#.


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Ternary Search Tree Dictionary in C#: Faster String Dictionary!


A TST is a fast and memory efficient data structure for implementing a string dictionary.


Details  •  Read Tutorial  •  Views: 2006  •  Rate: 2 (1 votes)  •  Jul 09 2004 - 22:59

XOR tricks for RAID data protection


How RAID-5 protects data, using simple XOR tricks.


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A Generic - Reusable Diff Algorithm in C#


A generic algorithm that can be used to find the difference between objects.


Details  •  Read Tutorial  •  Views: 830  •  Rate: 0 (0 votes)  •  Jul 09 2004 - 22:57

Combinatorial algorithms in C#


Some basic combinatorial algorithms for use in the NET framework.


Details  •  Read Tutorial  •  Views: 1210  •  Rate: 0 (1 votes)  •  Jul 09 2004 - 22:55

Path finding in C#


A generic implementation of the A* (AStar) path finding algorithm in C#.


Details  •  Read Tutorial  •  Views: 1187  •  Rate: 0 (0 votes)  •  Jul 09 2004 - 22:53

Evolving Numeric Series Using Genetic Algorithms in C#


If you ever browsed around the book store, you'll notice these puzzle books or IQ test books and some of the books contain questions asking you to complete a series of numbers.


Details  •  Read Tutorial  •  Views: 758  •  Rate: 0 (0 votes)  •  Jul 09 2004 - 19:33

Evolving Resistor Networks Using Genetic Algorithms in C#


Genetic Algorithms are powerful AI tools because they can evolve through trial and error and converge into a solution. Electronics is one place where genetic algorithms are useful because you can run ga's on evolving circuits and have them approach values that meet the specs you desire for the output of your circuit.In this article we will use genetic algorithms to come up with an analog solution.


Details  •  Read Tutorial  •  Views: 685  •  Rate: 0 (0 votes)  •  Jul 09 2004 - 19:32

Training and Simulating a Neural DotNetwork in C#


Neural networks today are used primarily for pattern recognition in applications such as handwriting recognition, stock prediction, and biometric analysis. In this article we will explore a well-known AI algorithm for modeling the training of neural networks called back propagation.


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Generating Evolutionary Art in C#


In this article we will experiment a bit with genetic algorithms and creating fitness functions that produce art on a Windows Form.


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Virtual Oscilloscope using PIC Microcontroller


An oscilloscope is probably the most important instrument for observing and measuring electronic circuits. It allows you to observe timing, voltages, slopes, curves, and spikes of an electronic signal.


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Code Generator for Basic Stamp II Microcontroller


The Basic II Stamp is programmed by the language its named after, Basic. The language is a combination of Basic syntax and built in key words that control the Basic Stamp II chip.


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Math Equation Editor in C#


The Equation Editor I created in C# allows you to create a few simple equations using the keyboard. With the editor you can open and save files of your equations. The editor also allows you to print your equations to the printer or save the equations to a bitmap to insert into a Word or HTML document.


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Using Generic Algorithms to Layout Circuit Boards


This article tells you how to use a Genetic Algorithm to optimally layout parts on a circuit board so they have the shortest connections between them. Shorter connections between circuit parts means smaller layout, less resistance and less capacitance.


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Using Multiple Expressions to Derive the Pythagorean Theorem


In this article, we will talk about a simpler GA technique for manipulating symbolic expressions and also use it to derive the Pythagorean equation.


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Simulating a Swarm Algorithm in C#


Demonstrates the swarm behavior in a Windows Form using GDI+.


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Gene Expression Programming (GEP) in C# and .NET


Gene Expression programming (GEP) is a subset of Genetic Algorithms, except it uses genomes whose strings of numbers represent symbols. The string of symbols can further represent equations, grammars, or logical mappings. The genome can be mapped to a binary tree that you can walk along the nodes to evaluate the equation.


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Using Generic Algorithms to Design Logic Circuits in C#


The article then goes to explain that GA (Genetic Algorithms) have been used by various programmers to come up with 15 previous patented inventions + (and here is the startling part) some new ones! I can see the running joke in the patent office now.


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