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I'm new to Mahout and am trying to work through 'Mahout in Action,' which uses the 0.5 release. One of the early examples calls for using the slope-one recommender. Is this recommender still included in Mahout 0.9? I've looked through the documentation and I couldn't find it. Perhaps it has changed names?
Thanks for your help!
There is no SlopeOneRecommender present in Mahout 0.9. It was removed in an earlier version of Mahout.
SlopeOne Recommender was removed from Mahout 0.8 onwards MAHOUT-1250
If you want to still use it, use an earlier version such as Mahout 0.7.