Obtaining a model classification xml file

[Wong Zhijie]

Pardon my question as I am very new to MIR in general, but I was going through the ACE 2.0 manual and I noticed I needed to have something called the model classification xml file before any training or classifying can be done. I can't find anywhere in the manual that says where to obtain this file and also when I attempt to train with the command java -jar ACE.jar -lfkey fkey.xml -lfvec fvec.xml -ltax tax.xml -train -learner SMO -sres test.model I get the following error:
ERROR: ACE was unable to train the Classifier.
ERROR: weka.classifiers.functions.SMO: Not enough training instances with class labels (required: 1, provided: 0)!

java.lang.Exception: ACE was unable to train the Classifier.
ERROR: weka.classifiers.functions.SMO: Not enough training instances with class labels (required: 1, provided: 0)!
at ace.Coordinator.train(Coordinator.java:187)
at ace.CommandLine.processRequests(CommandLine.java:476)
at ace.Main.main(Main.java:47)

I hope someone can point me in the right direction as right now I am completely stuck attempting to do anything with the features I have extracted from jAudio. Any help is greatly appreciated! :)

[Daniel McEnnis]

This is Cory McKay's baby. I'm cc him on the discussion.

On Wed, Dec 16, 2015, 2:46 AM Wong Zhijie zcarified@users.sf.net wrote:

Pardon my question as I am very new to MIR in general, but I was going
through the ACE 2.0 manual and I noticed I needed to have something called
the model classification xml file before any training or classifying can be
done. I can't find anywhere in the manual that says where to obtain this
file and also when I attempt to train with the command java -jar ACE.jar
-lfkey fkey.xml -lfvec fvec.xml -ltax tax.xml -train -learner SMO -sres
test.model I get the following error:
ERROR: ACE was unable to train the Classifier.
ERROR: weka.classifiers.functions.SMO: Not enough training instances with
class labels (required: 1, provided: 0)!

java.lang.Exception: ACE was unable to train the Classifier.
ERROR: weka.classifiers.functions.SMO: Not enough training instances with
class labels (required: 1, provided: 0)!
at ace.Coordinator.train(Coordinator.java:187)
at ace.CommandLine.processRequests(CommandLine.java:476)
at ace.Main.main(Main.java:47)

I hope someone can point me in the right direction as right now I am
completely stuck attempting to do anything with the features I have
extracted from jAudio. Any help is greatly appreciated! :)

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Obtaining a model classification xml file
https://sourceforge.net/p/jaudio/discussion/558641/thread/7133a05c/?limit=25#e8d9

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[Cory McKay]

You need this file in order to specify to ACE your ground truth model classifications when training a supervised classifier (like SVMs, in your case). You can also use this file to evaluate classifications of novel instances with a trained classifier, but it is of course optional in this latter case.

You can get more information on this file type at (version 1.1 is used by jAudio):

http://jmir.sourceforge.net/index_ACE_XML.html

There’s a model file at:

http://jmir.sourceforge.net/ace_xml_files/Classifications.xml

You can write the classifications file by hand, or you can use jMIRUtilities to batch label instances:

http://jmir.sourceforge.net/index_jMIRUtilities.html

Hope this helps,
Cory

[Wong Zhijie]

Thanks Daniel for bringing Mr Cory McKay in to this topic and to Cory for giving it his attention!

I managed to get Utilities to work out and I will continue to experiment with the rest as well to see which suits my needs more :)