java.lang.IllegalArgumentException: Problems with option: stream

Lida Velden

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Nov 7, 2015, 3:11:08 AM11/7/15

to MOA users

hi

I always get error message when I tried to run following line with GUI:

RunStreamTasks -t (EvaluateConceptDrift -l (ChangeDetectorLearner -d ADWINChangeDetector) -s (AbruptChangeGenerator -p 2500) -i 5000 -d E:\dumpForAbruptInMOA.csv)

I've tried it on different MOA releases. See the results bellow:

moa-prerelease-2015.05= same exception

prerelease-2015.10= same exception

2014-11 release = same exception

moa-release-2014.04a= same exception

Any suggestions on how to fix this would be greatly appreciated.

The error is as follow:

Failure reason: Problems with option: stream

*** STACK TRACE ***java.lang.IllegalArgumentException: Problems with option: stream

at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:69)

at moa.tasks.RunStreamTasks.doMainTask(RunStreamTasks.java:80)

at moa.tasks.MainTask.doTaskImpl(MainTask.java:50)

at moa.tasks.AbstractTask.doTask(AbstractTask.java:57)

at moa.tasks.TaskThread.run(TaskThread.java:76)

Caused by: java.lang.Exception: Problem with options to 'AbruptChangeGenerator'.

Valid options for AbruptChangeGenerator:

-i instanceRandomSeed (default: 1)

Seed for random generation of instances.

-b notBinaryStream

Don't convert to a binary stream of 0 and 1.

-p numInstancesConcept (default: 500)

The number of instances for each concept.

at moa.options.ClassOption.cliStringToObject(ClassOption.java:156)

at moa.options.ClassOption.setValueViaCLIString(ClassOption.java:67)

... 4 more

Caused by: java.lang.IllegalArgumentException: Expecting option, found: '0'.

at moa.options.Options.setViaCLIString(Options.java:154)

at moa.options.ClassOption.cliStringToObject(ClassOption.java:154)

... 5 more

Also in command line, The following error is generated:

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 6

at moa.gui.TaskTextViewerPanel.setGraph(TaskTextViewerPanel.java:383)

at moa.gui.TaskTextViewerPanel.setText(TaskTextViewerPanel.java:305)

at moa.gui.PreviewPanel.setLatestPreview(PreviewPanel.java:155)

at moa.gui.PreviewPanel.refresh(PreviewPanel.java:132)

at moa.gui.PreviewPanel$2.actionPerformed(PreviewPanel.java:116)

at javax.swing.Timer.fireActionPerformed(Timer.java:312)

at javax.swing.Timer$DoPostEvent.run(Timer.java:244)

at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)

at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)

at java.awt.EventQueue.access$200(EventQueue.java:103)

at java.awt.EventQueue$3.run(EventQueue.java:688)

at java.awt.EventQueue$3.run(EventQueue.java:686)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Albert Bifet

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Nov 7, 2015, 4:20:24 AM11/7/15

to MOA users

Do you need to use RunStreamTasks? Can you use only a single evaluation?

EvaluateConceptDrift -l (ChangeDetectorLearner -d ADWINChangeDetector) -s AbruptChangeGenerator -i 5000 -d E:\dumpForAbruptInMOA.csv

If you want to use RunStreamTasks you are running different experiments changing a parameter of the stream. By default is the 'b' parameter. As AbruptChangeGenerator has no 'b' parameter, an error occurs.

For example, you can use

RunStreamTasks -t (EvaluateConceptDrift -l (ChangeDetectorLearner -d ADWINChangeDetector) -s (AbruptChangeGenerator -p 2500) -i 5000 -d E:\dumpForAbruptInMOA.csv) -p p -f 2000.0 -l 2500.0 -i 500.0

to run experiments modifying the 'p' parameter in AbruptChangeGenerator from 2000 to 2500 with increments of 500.

Cheers, Albert

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Lida Velden

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Nov 7, 2015, 5:12:30 AM11/7/15

to MOA users, abi...@waikato.ac.nz

Thanks for taking the time to look at this for me, its much appreciated.

My main goal is to concept drift detection in SEA dataset(generators.SEAGenerator) with MOA GUI.

But when I use "EvaluateConceptDrift" from concept drift tab in MOA software, I can only use AbruptChangeGenerator, GradualChangeGenerator and NochangeGenerator stream.

How do I get my main goal?

and another thing, in the above post, you said "you can use

RunStreamTasks -t (EvaluateConceptDrift -l (ChangeDetectorLearner -d ADWINChangeDetector) -s (AbruptChangeGenerator -p 2500) -i 5000 -d E:\dumpForAbruptInMOA.csv) -p p -f 2000.0 -l 2500.0 -i 500.0

to run experiments modifying the 'p' parameter in AbruptChangeGenerator from 2000 to 2500 with increments of 500."

I saw that in highlight command(-p p -f 2000.0 -l 2500.0 -i 500.0) , we change the 'p' parameter of AbruptChangeGenerator. but according to abrupt change, what is the meaning of "f" and "L" parameters?