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Does HBOS outlier detection requires normalization?

JerwuneyJerwuney Member Posts: 19 Contributor II
Hi,

Please does HBOS method for outlier detection requires normalization? Is it sensitive to scale like k-NN?

I read a paper that states that, "HBOS assumes independence of the features", so I tried deriving from it that HBOS might be done with allowing features to maintain their respective scales.

Please I would appreciate your kind support. Thank you.

Sincerely,
Jerwuney

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    MartinLiebigMartinLiebig Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,520 RM Data Scientist
    Solution Accepted
    Hi,
    since features are independent normalization shouldn't matter, as long as they are linear.

    BR,
    Martin
    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
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    JerwuneyJerwuney Member Posts: 19 Contributor II
    Solution Accepted
    Hi Martin,

    Thank you.

    Jerwuney.
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