Hi, everyone
I'm trying mahout now. When running LDA on reuter corpus
(http://lucene.grantingersoll.com/2010/02/16/trijug-intro-to-mahout-slides-and-demo-examples/),
A parameter refuses to work. This parameter is "maxIter", without
which, i cannot decide the iteration to run~
My CMD is:
bin/mahout.hadoop lda --input mahout/seq-sparse-tf/vectors --output
mahout/seq-sparse-tf/lda-out5 --numWords 34000 --numTopics 20
--maxIter 1
But got a exception:
10/05/22 20:32:11 ERROR lda.LDADriver: Exception
org.apache.commons.cli2.OptionException: Unexpected 2 while processing Options
at org.apache.commons.cli2.commandline.Parser.parse(Parser.java:100)
at org.apache.mahout.clustering.lda.LDADriver.main(LDADriver.java:115)
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:172)
...
What's the problem? I'm using version 0.3 & Hadoop 0.20.0.
Thank you!
--
Yang Jie（杨杰）
hi.baidu.com/thinkdifferent
Group of CLOUD, Xi'an Jiaotong University
Department of Computer Science and Technology, Xi’an Jiaotong University
PHONE: 86 1346888 3723
TEL: 86 29 82665263 EXT. 608
MSN: [email protected]
once i didn't know software is not free, but found it days later; now
i realize that it's indeed free.
