Yes it's item-based only. --similarityClassname chooses the metric but it is item-based.
On Tue, Mar 13, 2012 at 11:53 PM, Rich <cchuang...@gmail.com> wrote: > Hi, > I have been digging into Mahout on Hadoop for the pas few days. > I was wondering the recommendation > algorithm that is used in RecommenderJob.java. For example: > > bin/hadoop jar /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT-job.jar > org.apache.mahout.cf.taste.hadoop.item.RecommenderJob > -Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output > --usersFile input/users.txt --booleanData > > By executing this command, is either item-based or user-based > recommendation algorithm being used? > And does specifying "--similarityClassname" in the command > have anything to do with > choosing item-based or user-based algorithm for the recommendation? > > > The help is appreciated in advance, > Rich >
