It is not working with tf-idf vectors too. Yup, please bear with us. Something about MAHOUT_LOCAL=true does not seem to work on OS X.
-- I was able to run bunch of other demo code. Is it just reuters? or vectorizer? Thanks, Sharath On Wed, Jun 22, 2011 at 1:37 PM, Drew Farris <d...@apache.org> wrote: > Hi Sharath, > > Does the reuters/reuters-vectors-bigram directory contain a > tfidf-vectors directory? If so, try using that as input. If not, what > is in that directory? > > This sounds similar to the problem Hector ran into running one of the > examples from the mahout-in-action book. > > Thanks, > > Drew > > On Mon, Jun 20, 2011 at 2:40 PM, sharath jagannath > <sharathjagann...@gmail.com> wrote: > > Hey, > > > > I was testing the kmeans driver using the reuters data. > > > > Commands used: > > > > 1. bin/mahout seqdirectory -c UTF-8 -i reuters/reuters21578 -o > > reuters/reuters-seqfiles > > 2. bin/mahout seq2sparse -i reuters/reuters-seqfiles/ -o > > reuters/reuters-vectors-bigram -ow -a > > org.apache.lucene.analysis.WhitespaceAnalyzer -chunk 200 -wt tf -s 5 -md > 3 > > -x 90 -ng 1 > > 3. bin/mahout kmeans -i reuters/reuters-vectors-bigram/ -c > > reuters/reuters-initial-clusters -o reuters/reuters-kmeans-clusters -dm > > org.apache.mahout.common.distance.SquaredEuclideanDistanceMeasure -k 20 > > --maxIter 100 > > > > I get the following exception. Am I doing anything wrong? > > > > Exception in thread "main" java.lang.ClassCastException: > > org.apache.hadoop.io.IntWritable cannot be cast to > > org.apache.mahout.math.VectorWritable > > at > > > org.apache.mahout.clustering.kmeans.RandomSeedGenerator.buildRandom(RandomSeedGenerator.java:90) > > at > > > org.apache.mahout.clustering.kmeans.KMeansDriver.run(KMeansDriver.java:102) > > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > > at > > > org.apache.mahout.clustering.kmeans.KMeansDriver.main(KMeansDriver.java:59) > > 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) > > > > > > Thanks, > > Sharath > > > -- Thanks, Sharath Jagannath
