mahout-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sergey Bartunov <sbos....@gmail.com>
Subject Re: 20news
Date Mon, 04 Jul 2011 09:20:59 GMT
Yes, I worked WITH hadoop, but there should be no difference.

Why do you use examples/bin/build/20news-bayes.sh instead of direct
running bin/mahout? Is it the same?

On 4 July 2011 13:12, Vijay Santhanam <vijay.santhanam@gmail.com> wrote:
> Thanks Sergey,
>
> I'm still receiving the same error after following those steps.
> I've chosen not to use hadoop - does yours work WITH hadoop?
>
> A few bits of info that might be relevant.
>
> My examples/bin/work folder contains the expected folders from test data
> preparation and training...
> drwxr-xr-x@ 22 Vijay  staff  748 18 Mar  2003 20news-bydate-test
> drwxr-xr-x@ 22 Vijay  staff  748 18 Mar  2003 20news-bydate-train
> drwxr-xr-x   3 Vijay  staff  102  4 Jul 19:03 bayes-model
> drwxr-xr-x  22 Vijay  staff  748  4 Jul 18:20 bayes-test-input
> drwxr-xr-x  22 Vijay  staff  748  4 Jul 17:49 bayes-train-input
>
>
> I appreciate your help, do you have any other suggestions?
>
> Regards,
> Vijay
>
>
> On Mon, Jul 4, 2011 at 6:58 PM, Sergey Bartunov <sbos.net@gmail.com> wrote:
>
>> When I started with Mahout I had the same errors. In my case, I just
>> didn't run PrepareTwentyNewsgroups. You may try to accurately repeat
>> all steps from https://cwiki.apache.org/MAHOUT/twenty-newsgroups.html
>>
>> On 4 July 2011 12:52, Vijay Santhanam <vijay.santhanam@gmail.com> wrote:
>> > Hi All,
>> >
>> > I'm new to Mahout and I'm interested in experimenting with it's
>> classifiers.
>> >
>> > Right now, I'm just trying to get up and running with the demo's and
>> > examples.
>> >
>> > After checking out the mahout trunk, I've tried running the
>> classification
>> > example 20news, but after running the
>> ./examples/bin/build/20news-bayes.sh
>> > script I get the following error during the classification phase.
>> >
>> > Does anyone else get the same thing? Or have any recommendations about
>> how
>> > to fix it?
>> > I'd just like to get a sample classifier working before I embark on my
>> own
>> > classification journey.
>> >
>> >
>> > INFO: Loading model from:
>> > {basePath=examples/bin/work/20news-bydate/bayes-model,
>> classifierType=bayes,
>> > alpha_i=1.0, dataSource=hdfs, gramSize=1, verbose=false, encoding=UTF-8,
>> > defaultCat=unknown,
>> > testDirPath=examples/bin/work/20news-bydate/bayes-test-input}
>> > Jul 4, 2011 6:28:25 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: Testing Bayes Classifier
>> > Jul 4, 2011 6:28:27 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: Read 50000 feature weights
>> > Jul 4, 2011 6:28:27 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: Read 100000 feature weights
>> > Jul 4, 2011 6:28:28 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: 193370.88331085522
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: rec.sport.baseball -129829.34738930278 531784.7805631821
>> > -0.2441388925268003
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: sci.crypt -193023.42370049533 531784.7805631821 -0.3629728242618669
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: rec.sport.hockey -167853.6159738822 531784.7805631821
>> > -0.31564200802459647
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: talk.politics.guns -203524.0148974065 531784.7805631821
>> > -0.3827187658170024
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: soc.religion.christian -163900.9258713857 531784.7805631821
>> > -0.308209132457322
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: sci.electronics -142854.1677345925 531784.7805631821
>> > -0.26863154598614886
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: comp.os.ms-windows.misc -531784.7805631821 531784.7805631821 -1.0
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: misc.forsale -143454.70176448982 531784.7805631821
>> > -0.26976082619845826
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: talk.religion.misc -139428.73484148504 531784.7805631821
>> > -0.2621901565024562
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: alt.atheism -139569.06867597546 531784.7805631821
>> -0.2624540486626301
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: comp.windows.x -178029.10523376046 531784.7805631821
>> > -0.33477660839638973
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: talk.politics.mideast -193075.00789450994 531784.7805631821
>> > -0.36306982627452317
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: comp.sys.ibm.pc.hardware -138410.02049984262 531784.7805631821
>> > -0.2602745049477736
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: comp.sys.mac.hardware -125200.9927438868 531784.7805631821
>> > -0.23543545682389364
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: sci.space -192437.0009266271 531784.7805631821 -0.3618700797018455
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: rec.motorcycles -143142.20855440624 531784.7805631821
>> > -0.26917319522159455
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: rec.autos -141800.97549909537 531784.7805631821 -0.2666510601317365
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: comp.graphics -166882.18654471825 531784.7805631821
>> > -0.3138152738556811
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: talk.politics.misc -165196.84193278523 531784.7805631821
>> > -0.3106460507535303
>> > Jul 4, 2011 6:28:30 PM org.slf4j.impl.JCLLoggerAdapter info
>> > INFO: sci.med -192698.5183245711 531784.7805631821 -0.36236185270382393
>> > Exception in thread "main" java.lang.IllegalArgumentException: Label not
>> > found: alt.atheism from
>> >  at
>> > com.google.common.base.Preconditions.checkArgument(Preconditions.java:88)
>> > at
>> >
>> org.apache.mahout.classifier.ConfusionMatrix.getCount(ConfusionMatrix.java:93)
>> >  at
>> >
>> org.apache.mahout.classifier.ConfusionMatrix.incrementCount(ConfusionMatrix.java:113)
>> > at
>> >
>> org.apache.mahout.classifier.ConfusionMatrix.incrementCount(ConfusionMatrix.java:117)
>> >  at
>> >
>> org.apache.mahout.classifier.ConfusionMatrix.addInstance(ConfusionMatrix.java:85)
>> > at
>> >
>> org.apache.mahout.classifier.ResultAnalyzer.addInstance(ResultAnalyzer.java:67)
>> >  at
>> >
>> org.apache.mahout.classifier.bayes.TestClassifier.classifySequential(TestClassifier.java:244)
>> > at
>> >
>> org.apache.mahout.classifier.bayes.TestClassifier.main(TestClassifier.java:177)
>> >  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at
>> >
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> >  at
>> >
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> > at java.lang.reflect.Method.invoke(Method.java:597)
>> >  at
>> >
>> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
>> > at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>> >  at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
>> >
>> >
>> > Any help is great appreciated.
>> >
>> > Regards,
>> > --
>> >  Vijay Santhanam
>> >  Software Engineer
>> >
>>
>
>
>
> --
>  Vijay Santhanam
>  Software Engineer
>  http://au.linkedin.com/in/vijaysanthanam
>  0407525087
>

Mime
View raw message