.. _sphx_glr_auto_examples_under-sampling:

.. _under_sampling_examples:

Example using under-sampling class methods
==========================================

Under-sampling refers to the process of reducing the number of samples in the majority classes.
The implemented methods can be categorized into 2 groups: (i) fixed under-sampling and (ii) cleaning under-sampling.



.. raw:: html

    <div class="sphx-glr-thumbnails">


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This example illustrates what is a Tomek link.">

.. only:: html

  .. image:: /auto_examples/under-sampling/images/thumb/sphx_glr_plot_illustration_tomek_links_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_under-sampling_plot_illustration_tomek_links.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Illustration of the definition of a Tomek link</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This example illustrates the different way of selecting example in NearMiss.">

.. only:: html

  .. image:: /auto_examples/under-sampling/images/thumb/sphx_glr_plot_illustration_nearmiss_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_under-sampling_plot_illustration_nearmiss.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Sample selection in NearMiss</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="The following example attends to make a qualitative comparison between the different under-samp...">

.. only:: html

  .. image:: /auto_examples/under-sampling/images/thumb/sphx_glr_plot_comparison_under_sampling_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_under-sampling_plot_comparison_under_sampling.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Compare under-sampling samplers</div>
    </div>


.. raw:: html

    </div>


.. toctree::
   :hidden:

   /auto_examples/under-sampling/plot_illustration_tomek_links
   /auto_examples/under-sampling/plot_illustration_nearmiss
   /auto_examples/under-sampling/plot_comparison_under_sampling