boone.io

Class SNNSNetFilter

java.lang.Object

boone.io.IOFilter

boone.io.SNNSNetFilter

public class SNNSNetFilter
extends IOFilter

Load and save SNNS net files.

Please note that this class does a limited job. It should work for basic, feed-forward neural networks, with Backprop or Rprop trainers, but not much else. Also, Boone activation functions have more functionality, which isn't mapped.

Always writes Out_Identity output function. Rewritten for Boone from the netJENXS class ENSNNSFileHandler.

Since:

May 04, 2001

Version:

$Id$

Author:

Dietmar Planitzer, August Mayer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SNNSNetFilter.ENSNNSLexicalAnalyzer Lexical Analyser class.
static class	SNNSNetFilter.ENSNNSParser Parser.

Field Summary

Fields

Modifier and Type	Field and Description
float	gridWidth Neuron position translation - Grid width (scale)
protected static java.lang.String	snnsFileHeader SNNS file header
float	xOrigin Neuron position translation - X origin
float	yOrigin Neuron position translation - Y origin

Fields inherited from class boone.io.IOFilter

compressed, file, parser, streamSize, writer

Constructor Summary

Constructors

Constructor and Description
SNNSNetFilter()

Method Summary

Modifier and Type	Method and Description
Storable	load(Storable storable) Loads a neural network from an SNNS network file.
void	save(Storable storable) Writes a network to a file in SNNS format.

Methods inherited from class boone.io.IOFilter

createInputStream, createOutputStream, getFile, getStreamSize, isCompressed, isStreaming, readValues, reset, setCompressed, setFile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

snnsFileHeader

protected static final java.lang.String snnsFileHeader

SNNS file header

See Also:

Constant Field Values

xOrigin

public float xOrigin

Neuron position translation - X origin

yOrigin

public float yOrigin

Neuron position translation - Y origin

gridWidth

public float gridWidth

Neuron position translation - Grid width (scale)

Constructor Detail

SNNSNetFilter

public SNNSNetFilter()

Method Detail

load

public Storable load(Storable storable)
              throws java.io.IOException

Loads a neural network from an SNNS network file.

Specified by:

load in class IOFilter

Parameters:

storable - not used here

Returns:

the data container (for convenience)

Throws:

java.io.IOException

save

public void save(Storable storable)
          throws java.io.IOException

Writes a network to a file in SNNS format.

Specified by:

save in class IOFilter

Parameters:

storable - the neural network

Throws:

java.io.IOException - problems when writing