org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJob use integer
as userId and itemId
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Key: MAHOUT-974
URL: https://issues.apache.org/jira/browse/MAHOUT-974
Project: Mahout
Issue Type: Wish
Components: Collaborative Filtering
Affects Versions: 0.6
Reporter: Han Hui Wen
Assignee: Sean Owen
Fix For: 0.7
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
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