[MAHOUT-974] org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJob use integer as userId and itemId

• Type: Wish
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8
• Fix Version/s: 0.8
• Labels: CF,recommendation,als
• Assignee: Sebastian Schelter
• Reporter: Han Hui Wen
• Created: 07/Feb/12 07:41
• Updated: 31/Jan/24 22:11
• Resolved: 08/Jun/13 07:29

Description

org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJob uses integer as userId and itemId,but org.apache.mahout.cf.taste.hadoop.similarity.item.ItemSimilarityJob and org.apache.mahout.cf.taste.hadoop.item.RecommenderJob .use Long as userId and ItemId.

It's best that ParallelALSFactorizationJob also uses Long as userId and itemId ,so that same dataset can use all the recommendation arithrmetic