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Class Summary | |
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CaseAmplification | Applies "case amplification" to similarities. |
InverseUserFrequency | Implements an "inverse user frequency" transformation, which boosts preference values for items for which few users have expressed a preference, and reduces preference values for items for which many users have expressed a preference. |
ZScore | Normalizes preference values for a user by converting them to "z-scores". |
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