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From Mark Wicks <mawi...@gmail.com>
Subject Re: Interpretating doc-topic output of cvb
Date Tue, 25 Jun 2013 17:23:27 GMT
Sebastian,

Yes, cvb works well after applying that patch (and the document/topic
inferences make sense now).

Thanks!
Mark


On Tue, Jun 25, 2013 at 12:23 AM, Sebastian Schelter <ssc@apache.org> wrote:
> Hi Mark,
>
> I think I broke this code when I cleaned up LDA recently. Can you see
> whether everything works after applying the patch attached to
> https://issues.apache.org/jira/browse/MAHOUT-1268 ?
>
> Thanks,
> Sebastian
>
> On 24.06.2013 18:57, Mark Wicks wrote:
>> Thanks for the response.
>>
>> The command line I used is
>>
>> mahout cvb -ow -dict sparse/dictionary.file-0 -i matrix/matrix -o
>> cvb/topics -dt cvb/classifications  -block 2 -x 2 -cd 1e-10  -k2
>> -seed 6956 -tf 0.25
>>
>> This completes with no errors in Mahout 0.7.  With Mahout/cvb from trunk I get:
>>
>> 13/06/24 12:48:32 INFO cvb.CVB0Driver: About to run: Writing final
>> topic/term distributions from temp/topicModelState/model-2 to
>> cvb/topics
>> 13/06/24 12:48:32 INFO input.FileInputFormat: Total input paths to process : 10
>> 13/06/24 12:48:33 INFO cvb.CVB0Driver: About to run: Writing final
>> document/topic inference from matrix/matrix to cvb/classifications
>> 13/06/24 12:48:33 INFO mapred.JobClient: Cleaning up the staging area
>> hdfs://192.168.84.8:9000/tmp/hadoop-hadoop/mapred/staging/mwicks/.staging/job_201304292057_0252
>> 13/06/24 12:48:33 ERROR security.UserGroupInformation:
>> PriviledgedActionException as:mwicks
>> cause:org.apache.hadoop.mapred.FileAlreadyExistsException: Output
>> directory cvb/topics already exists
>> Exception in thread "main"
>> org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory
>> cvb/topics already exists
>>         at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:137)
>>         at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:949)
>>         at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:912)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at javax.security.auth.Subject.doAs(Subject.java:415)
>>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
>>         at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:912)
>>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:500)
>>         at org.apache.mahout.clustering.lda.cvb.CVB0Driver.writeDocTopicInference(CVB0Driver.java:463)
>>         at org.apache.mahout.clustering.lda.cvb.CVB0Driver.run(CVB0Driver.java:339)
>>         at org.apache.mahout.clustering.lda.cvb.CVB0Driver.run(CVB0Driver.java:198)
>>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>>         at org.apache.mahout.clustering.lda.cvb.CVB0Driver.main(CVB0Driver.java:534)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>         at java.lang.reflect.Method.invoke(Method.java:601)
>>         at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
>>         at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>>         at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>         at java.lang.reflect.Method.invoke(Method.java:601)
>>         at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
>>
>>
>> I am certain that "cvb/topics" did not exist before running "mahout
>> cvb".  After the error, cvb/topics exists and contains data, but
>> cvb/classifications does not exist.
>>
>> Mark
>>
>

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