Comments on: Artificial Neural Network in PHP http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/ Java programming tips and advice, and other topics Wed, 19 Nov 2008 12:05:05 +0000 http://wordpress.org/?v=2.0.4 by: Eddy http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-33249 Wed, 17 Jan 2007 11:36:07 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-33249 Not proper SOM, but by combining two networks and training one as a trainer, you can achieve something close enough. Not proper SOM, but by combining two networks and training one as a trainer, you can achieve something close enough.

]]> by: PHWizard http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-32321 Thu, 11 Jan 2007 17:33:23 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-32321 Is it applicable for SOM? Is it applicable for SOM?

]]> by: Eddy http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-715 Fri, 05 Aug 2005 09:54:01 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-715 Fixed broken link to download the file. Fixed broken link to download the file.

]]> by: Jorge Evangelista http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-713 Wed, 03 Aug 2005 21:15:06 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-713 Where I can download the files? nn.php - the ANN implementation classes XOR_Training.php - the sample script for training a XOR XOR_Run.php - the sample script to evaluate XOR operations xor.dat - the saved XOR network architecture and weights Where I can download the files?

nn.php - the ANN implementation classes
XOR_Training.php - the sample script for training a XOR
XOR_Run.php - the sample script to evaluate XOR operations
xor.dat - the saved XOR network architecture and weights

]]> by: Shubhra Sankar Ray http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-634 Wed, 08 Jun 2005 13:02:01 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-634 I think you can design it yourself. Just read carefully the XOR problem from any good book. For example you can go through Neural Networks of Simon Haykin I think you can design it yourself. Just read carefully the XOR problem from any good book. For example you can go through Neural Networks of Simon Haykin

]]> by: Steffen Nissen http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-55 Tue, 30 Nov 1999 00:00:00 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-55 Hi, PHP bindings has just been released for the Fast Artificial Neural Network Library (fann) http://fann.sourceforge.net/ Thought you might want to know. Regards, Steffen Hi,

PHP bindings has just been released for the Fast Artificial Neural Network Library (fann)

http://fann.sourceforge.net/

Thought you might want to know.

Regards,
Steffen

]]> by: Tobias Wiersch http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-56 Tue, 30 Nov 1999 00:00:00 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-56 If you use PHP as an Apache-module, the following problem can appear: When you load, train and save a network and in the same PHP-script you want the network to be loaded again, the network is not loaded correctly, because the function filesize() returns the old size of the serialised network (if the new filesize is larger than the old filesize, the network is broken and not loaded). To fix this, add a clearstatcache() in the network-load-function (in nn.php): <pre> function &load($filename) { if (file_exists($filename) ) { clearstatcache(); $f = fopen($filename, "r"); $serialised = fread($f, filesize($filename)); [...] </pre> If you use PHP as an Apache-module, the following problem can appear:
When you load, train and save a network and in the same PHP-script you want the network to be loaded again, the network is not loaded correctly, because the function filesize() returns the old size of the serialised network (if the new filesize is larger than the old filesize, the network is broken and not loaded).

To fix this, add a clearstatcache() in the network-load-function (in nn.php):

function &load($filename) {
  if (file_exists($filename) ) {
    clearstatcache();
    $f = fopen($filename, "r");
    $serialised = fread($f, filesize($filename));
[...]
]]> by: apeksha http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-57 Tue, 30 Nov 1999 00:00:00 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-57 hi hi

]]> by: haider banka http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-58 Tue, 30 Nov 1999 00:00:00 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-58 sir, can u please send me the C code for XOr problem using ANN with back propagation. sir,
can u please send me the C code for XOr problem using ANN with back propagation.

]]> by: Eddy Young http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-59 Tue, 30 Nov 1999 00:00:00 +0000 http://coding.moris.org/archives/2004/03/19/artificial-neural-network-in-php/#comment-59 The whole point of this article is to show how to write an ANN in PHP. There are many other examples in C that you can get elsewhere on the Internet. Unfortunately, I do not have any. The whole point of this article is to show how to write an ANN in PHP. There are many other examples in C that you can get elsewhere on the Internet. Unfortunately, I do not have any.

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