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A comment on How useful was the Netflix Prize challenge for Netflix?. Parent comment

Re:How useful was the Netflix Prize challenge for Netflix? by anonu on Thursday July 08, 2021 @04:11PM (#27777020)
There's movies you watched and there's movies you never watched and/or never heard of. Its that latter group that the netflix prize was designed for.

The former group is just simple filters as you point out - which informs the ranking of the second group.

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