Hi Naveen, you can use an org.apache.mahout.cf.taste.model.IDMigrator to map from string ids to long ids and back.
-sebastian On 13.07.2013 04:55, Naveen wrote: > Hi All, > > I want to build a recommender engine using cf of Mahout with a dataset as > below: > <user,car1-rating,car2-rating, ............carn-rating> where user is string > value and ratings are numeric. > > Mahout seems to support <userid,itemid,rating> with numerical values > directly, but is there a way to support a dataset like above by building a > custom FileDataModel? > Or do we need to convert the dataset to the Mahout supported dataset format? > > I am new to Mahout. > Please provide me an example where possible. > > Thanks in advance, > Naveen >
