Encog 1.0 for Java serialization

Submitted by gc on Sat, 12/06/2008 - 13:44

Using Encog in Java

hello!
how to serialize BasicNetwork object?
i have tried:
WRITING:
FileOutputStream out;
try {
out = new FileOutputStream("neuron_reka.ocr");
ObjectOutputStream s = new ObjectOutputStream(out);
s.writeObject(network);
s.flush();
} catch (FileNotFoundException e) { e.printStackTrace();
} catch (IOException e) { e.printStackTrace(); }
READING:
try {
inn = new FileInputStream("neuron_reka.ocr");
ObjectInputStream s = new ObjectInputStream(inn);
network = (BasicNetwork)s.readObject();
} catch (FileNotFoundException e) { e.printStackTrace();
} catch (IOException e) { e.printStackTrace();
} catch (ClassNotFoundException e) { e.printStackTrace(); }
but it don't work :-P
maybe someone did it and could share the secret of easy-BasicNetwork-serialization?

Submitted by jeffheaton on Sun, 12/07/2008 - 23:58.

However, there is a bug with Encog 1.0 where serialization does not work. I normally use EncogPersistedCollection and just store it to an Encog XML file.

However, if you want to use serialization, that has been fixed with Encog 1.1. Encog 1.1 is probably about a week from release. If you would like to grab a copy now, you can get it from this URL.

http://www.heatonresearch.com/dload/encog-core.jar

Jeff

Submitted by liboh on Thu, 06/25/2009 - 17:36.

I'm using the code above with Encog 1.1 and I get this exception in the line: network = (BasicNetwork)s.readObject();

java.lang.ClassCastException: cannot assign instance of org.encog.neural.networks.layers.FeedforwardLayer to field org.encog.neural.networks.layers.BasicLayer.next of type java.util.List in instance of org.encog.neural.networks.layers.FeedforwardLayer

Why is that happening?

Submitted by jeffheaton on Fri, 06/26/2009 - 08:30.

See my reply in the other forum.