Class: Perceptron

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Classes of André Paterlini Oliveira Vieira

Perceptron

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Name:	Perceptron Support forum
Base name:	`perceptron`
Description:	Perceptron implementation for pattern recognition
Related classes:	faq, neural, perceptron, recognition, image recognition, artificial, neuron, neural networks
Version:	`-`
PHP version:	`-`
License:	Free For Educational Use
All time users:	4910 users
All time rank:	418
Week users:	6 users
Week rank:	639

Picture of André Paterlini Oliveira Vieira

Author:	André Paterlini Oliveira Vieira `<e-mail contact>`
Packages:	1 Browse this author's classes
Country:	Brazil - PHP jobs in Brazil
Age:	30
All time rank:	475	40 in Brazil
Week rank:	626	47 in Brazil

Innovation award

Nominee: 1x

Winner: 1x

	Detailed description

This class implements a model of the Percetron (Artificial Neural Networks - ANN) that can be trained to recognize patterns in its inputs.

This is similar to the algorithm used on palmtops to recognize words written on its pen pad.

The example that comes with this class demonstrates how it can be used to find people that match the profile an inquiring user that fills a form with questions about personal preferences.

First the perceptron is trained with answers of several people. Then the answers of an inquiring user are converted into values that are fed to the perceptron in order to find profile matches.

	Groups

	Algorithms	Numerical and statistical algorithms	View top rated classes
	Artificial intelligence	Automation of tasks using human-like intelligence	View top rated classes

	User ratings		Applications		Files

	Innovation Award

June 2004
Winner

Neural Networking is a computing science field that is not so well known among most software developers, but it can help solving problems that are difficult to solve with conventional computing methods.

Neural Networking consists of emulating the way a brain works by the means of networks of interconnected neurons. These neurons have inputs and outputs. They receive input signals that are combined according to some internal factors to define their output signals.

The neural networks need to be trained to perform some useful tasks. Usually these tasks consist of perceiving patterns in the input signals of their neurons. This is why they are also known as perceptrons.

Training consist of submitting a reasonably large sample of subjects that need to be recognized. Iteratively the values of internal factors of each neuron are adjusted until they output the desired response with an acceptable error rate.

The most common applications of neural networks are usually recognizing patterns that otherwise would be hard to distinguish by common computing methods, like for instance, recognizing handwritten characters in a scanned image.

This class provides an implementation of a perceptron. It comes with an example application of classifying users by type of profile based on the answers that they provide to questions presented in a Web form.

Since the class provides a generic implementation of a perceptron, there could be many other examples of application for this class, possibly only limited by the imagination of the developers that understand its potential.

Manuel Lemos

	User ratings

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Sufficient (77.5%)`	`Sufficient (65.0%)`	`Not sure (55.6%)`	`Sufficient (70.0%)`	`-`	`-`	`Not sure (57.8%)`	966
Month:	Not yet rated by the users

	Applications that use this class

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If you know an application of this package, send a message to the author to add a link here.

	Files

File	Role	Description
`como_funciona`	Doc.	F.A.Q - em português
`find_match.php`	Example	Example - Finds a class pattern from the submited user profile (see index.html - HTML form)
`how_does_it_works`	Doc.	F.A.Q.
`index.html`	Data	Example - RNA Perceptron implementation form
`perceptron_class.php`	Class	Class - RNA Perceptron OOP class

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