Weka Classifier Properties

[Jeff Allard]

Can anyone point me towards a resource for properties of Weka classifiers - specifically I am looking for the proper way to reference parameters using gridsearch.

 

Thanks!

 

Jeff

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[Peter Reutemann]

> Can anyone point me towards a resource for properties of Weka classifiers -

There's none. The reason for this is that the properties are derived
through Java Beans Introspection and solely depend on the underlying
code base (which can change).

> specifically I am looking for the proper way to reference parameters using
> gridsearch.

The Javadoc of GridSearch contains two examples for setups (you'll
find the same examples in the article "Optimizing parameters"
mentioned in FAQ "Can I tune the parameters of a classifier?").

How to determine the properties? You'll have to click through the
properties in the GenericObjectEditor and note the path that you've
taken. GridSearch uses the class weka.core.PropertyPath to set the
actual values. Check out that class' Javadoc as well.

HTH

Cheers, Peter
--
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
http://www.cs.waikato.ac.nz/~fracpete/ Ph. [phone]

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[Jeff Allard]

Thanks Peter - but can you point me towards what I will be clicking through? Is this online, down loaded with Weka? Thanks!

2008/6/26 Peter Reutemann <fracpete@...>:

> Can anyone point me towards a resource for properties of Weka classifiers -

There's none. The reason for this is that the properties are derived
through Java Beans Introspection and solely depend on the underlying
code base (which can change).

> specifically I am looking for the proper way to reference parameters using
> gridsearch.

The Javadoc of GridSearch contains two examples for setups (you'll
find the same examples in the article "Optimizing parameters"
mentioned in FAQ "Can I tune the parameters of a classifier?").

How to determine the properties? You'll have to click through the
properties in the GenericObjectEditor and note the path that you've
taken. GridSearch uses the class weka.core.PropertyPath to set the
actual values. Check out that class' Javadoc as well.

HTH

Cheers, Peter
--
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
http://www.cs.waikato.ac.nz/~fracpete/ Ph. [phone]

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[Peter Reutemann]

> Thanks Peter - but can you point me towards what I will be clicking through?
> Is this online, down loaded with Weka? Thanks!

"Clicking through" happens in the Weka GUI (Explorer, Experimenter,
KnowledgeFlow, ...), whenever you modify an object's properties with
the GenericObjectEditor.

Cheers, Pete
--
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
http://www.cs.waikato.ac.nz/~fracpete/ Ph. [phone]

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