artificial neural network in a tic tac toe symfony console application - symfonycon 2014

with PHP on a Symfony Console TicTacToe game

Artificial Neural Networks

ANN with PHP SymfonyCon Madrid 2014

Agenda

1. Demo

2. Symfony Console

3. Symfony Console Helpers

4. ANN Theory

6. PHP + FANN

7. Show me the code

8. Demo

9. Q&A

Symfony Console

Symfony Console - Installation

#!/usr/bin/env php<?phprequire __DIR__ . ‘/../vendor/autoload.php';

use Symfony\Component\Console\Application; $app = new Application(); $app->run();

bin/console

{ ... "require": { "symfony/console": "~2.5" } ...}

composer.json

Symfony Console - Installation

#!/usr/bin/env php<?phprequire __DIR__ . ‘/../vendor/autoload.php';

use Symfony\Component\Console\Application; $app = new Application(); $app->run();

bin/console

{ ... "require": { "symfony/console": "~2.5" } ...}

composer.json

$ php bin/console

$ chmod +x bin/console$ bin/console

Symfony console style guidehttps://github.com/symfony/symfony-docs/issues/4265

Created by @javiereguiluzImproved by Symfony community

Symfony Console Helpers

Progress bar

Question

Formatter

<?php// create a new progress bar (10 units)$progress = new ProgressBar($output, 10); // start and displays the progress bar$progress->start(); $i = 0; while ($i++ < 10) { // ... do some work // advance the progress bar 1 unit $progress->advance(); } // ensure that the progress bar is at 100%$progress->finish();

Command.php

Progress bar

We all techies love progress bars

<?php $table = new Table($output); $table ->setHeaders(array('Component', 'Package')) ->setRows(array( array('Console', 'symfony/console'), array('Form', 'symfony/form'), array('Finder', 'symfony/finder'), array('Config', 'symfony/config'), array('...', '...'), )) ; $table->render();

Command.php

Question

$helper = $this->getHelper('question'); $question = new ConfirmationQuestion( 'Dou you want to play again? ', false ); if (!$helper->ask($input, $output, $question)) { $output->writeln("Bye bye!"); return; } $output->writeln("Let's play again!");

Command.php

Formatter

<?php $formatter = $this->getHelper('formatter'); $formattedLine = $formatter->formatSection( 'Game finished', 'Player one wins.'); $output->writeln($formattedLine); $errorMessages = array( 'Error!', 'Move already done.’ ); $formattedBlock = $formatter ->formatBlock($errorMessages, 'error'); $output->writeln($formattedBlock);

Command.php

Our helper

// Board example usage $board = new Board( $output, $this->getApplication() ->getTerminalDimensions(), 3, // Board size false // Don’t override the screen );

// Update and display the board status$board->updateGame(0,0,1);

Command.php

// Board example - four in a row$board = new BoardHelper( $output, $this->getApplication() ->getTerminalDimensions(), 4, // Board size false // Don’t override screen true // Board with backgrounded cells );

// Update the board status (Player 1) $board->updateGame(0,0,1);

// Update the board status (Player 2) $board->updateGame(0,1,2);

Command.php

// Example TicTacToe with overwrite$board = new TicTacToeHelper( $output, $this->getApplication() ->getTerminalDimensions(), 3, // Board size true // Overwrite screen);

// Update the board status and display$board->updateGame(1,1,1); $board->updateGame(0,0,2); $board->updateGame(2,0,1); $board->updateGame(0,2,2); $board->updateGame(0,1,1); $board->updateGame(2,1,2); $board->updateGame(1,0,1); $board->updateGame(1,2,2); $board->updateGame(2,2,1);

Command.php

Board<?phpnamespace PHPGames\Console\Helper; class Board{ /** * @var \Symfony\Component\Console\Output\OutputInterface */ private $output; /** * Clears the output buffer */ private function clear() { $this->output->write("\e[2J"); } // ...

Board.php

Instruction thatclears the screen

There is a bonus helper

Symfony Console - HAL

$hal = new HAL($output); $hal->sayHello();

Command.php

Computer model that intends to simulate how the brain works

Artificial Neural Networks

Input neuron

A typical ANN

Hidden neuron

Output neuron

Signal & weight

Activation FunctionsFunctions to process the input and produce a signal as output

Activation Functions• Step - output is 0 or 1

• Linear Combination - output is input sum plus a linear bias

• Continuous Log-Sigmoid

BackpropagationBackward propagation of errors

Passes error signals backwards through the network during training to update the weights of the network

ANN Types

ANN types• Feedforward neural network

Information goes only in one direction, forward.

• Radial basis function network (RBF) Interpolation in multidimensional space.

• Kohonen self-organizing network A set of artificial neurons learn to map points in an input space to coordinates in an output space.

ANN Learning

• Supervised

• Unsupervised

• Reinforcement

• Supervised

• Unsupervised

• Reinforcement

ANN Learning

• Supervised

• Unsupervised

• Reinforcement

ANN Learning

• Supervised

• Unsupervised

• Reinforcement

With some slights adaptations to solve

We've used Reinforcement Learning

Temporal Credit Assignment Problem

(WTF) ANN withArtificial Neural Networks with PHP

What The Fann

Meet libfann & PECL fann$~> sudo apt-get install libfann; sudo pecl install fann

(WTF) ANN with

(WTF) ANN with OS X1. Install autoconf 2. Install cmake 3. Compile FANN 4. Install php fann extension with PECL 5. Add the extension to php.ini

$ brew install autoconf

$ brew install cmake

$ cd FANN-2.2.X-Source $ cmake . $ sudo make install

$ sudo pecl install fann

extension=fann.so

Enjoy!

(WTF) ANN with

Show me the code!

(WTF) ANN with

The two neurons behind this talk

Eduardo Gulias

• EmailValidator (Symfony >= 2.5, Drupal 8).

• ListenersDebugCommandBundle (ezPublish 5).

• PHPMad UG co-founder (Former Symfony Madrid).

• Team leader at

@egulias

Ariel Ferrandini

• Symfony simple password encoder service. (Symfony >=2.6).

• Symfony DX application collaborator.

• PHPMad UG co-founder.

• Team leader at Paradigma Tecnológico

@aferrandini

Resources• Wikipedia (http://en.wikipedia.org/wiki/Artificial_neural_network)

• Introduction for beginners (http://arxiv.org/pdf/cs/0308031.pdf)

• Introduction to ANN (http://www.theprojectspot.com/tutorial-post/introduction-to-artificial-neural-networks-part-1/7)

• Reinforcement learning (http://www.willamette.edu/~gorr/classes/cs449/Reinforcement/reinforcement0.html)

• PHP FANN (http://www.php.net/fann)

Resources

• Repo PHPGames (https://github.com/phpgames/ANNTicTacToe)

• Repo Board helper (https://github.com/phpgames/BoardHelper)

• Repo HAL helper (https://github.com/phpgames/HALHelper)

Thank you!

https://joind.in/12951

Questions?

https://joind.in/12951

artificial neural network in a tic tac toe symfony console application - symfonycon 2014

Technology

okapi meet symfony, symfony meet okapi

symfony from scratch @ sfphp · symfony from scratch @...

practical symfony | symfony | web php...

desymfony 2017: symfony 4, symfony flex y el futuro de...

symfony...

symfony, la guia definitiva - jesusda.com · capítulo 1....

decoupling with (domain-)events - symfonycon warsaw

symfony consulting - womentalkbusiness · 2018-05-06 ·...

symfony consulting - womentalkbusiness.info · symfony...

chapter 1: installing and configuring symfony · symfony...

symfony 101 · symfony 2? (cont.) symfony 2 was the most...

symfony live san francisco 2017 - symfony @ opensky

a journey from hexagonal architecture to event sourcing -...

symfony (1/3) | train to symfony

symfonycon 2015 - a symphony of developers

merging two big symfony based applications - symfonycon 2017

introduction of symfony development process & what's symfony...

symfonycon madrid 2014 - rock solid deployment of symfony...

arduino - symfonycon 2014 lighting talks

simplify your code with annotations - symfonycon warsaw 2013