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    • Data Preprocess
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        • Under-Sampling
        • Over-Sampling
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  1. Python
  2. Data Preprocess
  3. Highly-Imbalanced Data

Under-Sampling

CondensedNearestNeighbour/EditedNearestNeighbours/Rep. EditedNearestNeighbours/ AllKNN/InstanceHardnessThreshold/NearMiss/NeighbourhoodCleaningRule/OneSidedSelection/ RandomUnderSampler/TomekLinks

PreviousHighly-Imbalanced DataNextOver-Sampling

Last updated 4 years ago

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Common

Input Data

Inputs

*Target Data

Data input

*Sampler

Name of the user-defined sampler module

*Predict Output

Name of the re-sampled data

*x

Columns (features) to be re-sampled by the sampler, with respect to their labels y.

  • Data type:

    • RamdomUnderSampler: all data type.

    • else: numeric.

  • One or more columns should be selected.

*y

Column containing labels of the features x.

  • Only one column should be selected.

Python Package

CondensedNearestNeighbour:

EditedNearestNeighbours:

Rep. EditedNearestNeighbours:

AllKNN:

InstanceHardnessThreshold:

NearMiss:

NeighbourhoodCleaningRule:

OneSidedSelection:

RandomUnderSampler:

TomekLinks:

https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.CondensedNearestNeighbour.html#
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.EditedNearestNeighbours.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.RepeatedEditedNearestNeighbours.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.AllKNN.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.InstanceHardnessThreshold.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.NearMiss.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.NeighbourhoodCleaningRule.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.OneSidedSelection.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.RandomUnderSampler.html
https://imbalanced-learn.readthedocs.io/en/stable/generated/imblearn.under_sampling.TomekLinks.html
[Task information of TomekLinks]