Does HBOS outlier detection requires normalization?

Jerwuney
Jerwuney New Altair Community Member
edited November 2024 in Community Q&A
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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Best Answers

  • MartinLiebig
    MartinLiebig
    Altair Employee
    Answer ✓
    Hi,
    since features are independent normalization shouldn't matter, as long as they are linear.

    BR,
    Martin
  • Jerwuney
    Jerwuney New Altair Community Member
    Answer ✓
    Hi Martin,

    Thank you.

    Jerwuney.

Answers

  • MartinLiebig
    MartinLiebig
    Altair Employee
    Answer ✓
    Hi,
    since features are independent normalization shouldn't matter, as long as they are linear.

    BR,
    Martin
  • Jerwuney
    Jerwuney New Altair Community Member
    Answer ✓
    Hi Martin,

    Thank you.

    Jerwuney.

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