If u r using Mahout 0.8, suggest that you look at the CVB invocation in examples/bin/cluster-reuters.sh as reference for the sequence of steps (and other command line options for each step).
ldatopics has been deprecated (in 0.8) and removed completely (in 0.9). Anyways, the input vectors directory in ur case would be - '/opt/mahout/cvb-output/topic_dist.out', but I would desist from using it as its been deprecated. ________________________________ From: Christopher Schindler <ideab...@hotmail.com> To: "user@mahout.apache.org" <user@mahout.apache.org> Sent: Wednesday, August 7, 2013 2:34 AM Subject: Using CVB; LdaTopics confusion Hi all, A noob question I'm sure but I'm stuck. I'm using CVB to cluster a text index of articles. Here's the CVB call: bin/mahout cvb \ -i /opt/mahout/lucene-sparse-vectors-cvb/matrix \ -dict /opt/mahout/cvb-output/dict.file-* \ -o /opt/mahout/cvb-output/topic_terms.out \ -dt /opt/mahout/cvb-output/topic_dist.out \ -k 200 \-mt /opt/mahout/output/iterations/ \-x 20 -a .25 -ow I'm trying to access the topics using ldatopics per https://cwiki.apache.org/confluence/display/MAHOUT/Latent+Dirichlet+Allocation. My latest combination was: bin/mahout ldatopics -i opt/mahout/cvb-output/ -d /opt/mahout/cvb-output/dict.file-* However, it returns an error stating: ERROR driver.MahoutDriver: : Try the new Collapsed Variation Bayes LDA, try bin/mahout cvb or bin/mahout cvb0_local The spec is:bin/mahout ldatopics \ -i <input vectors directory> \ -d <input dictionary file> \ What is the vectors directory supposed to be? Many thanks in advance. Cheers! Chris
