Mahout PreferenceArray userID uniqeness?

0
votes

Does the userId of a preferenceArray need to be unique across all entries in a FastByIDMap?

I'm comparing two types of objects that contain similar traits however it's possible that their id (primary key) is not unique as it's two db tables.

Thanks.

1
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1 Answers

0
votes

Via the Mahout user mailing list, userID's in a FastByIDMap must be unique over the entire map.