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.. _changes_0_2:
Version 0.2
===========
**January 1, 2017**
Changelog
---------
Bug fixes
~~~~~~~~~
- Fixed a bug in :class:`under_sampling.NearMiss` which was not picking the
right samples during under sampling for the method 3. By :user:`Guillaume
Lemaitre <glemaitre>`.
- Fixed a bug in :class:`ensemble.EasyEnsemble`, correction of the
`random_state` generation. By :user:`Guillaume Lemaitre <glemaitre>` and
:user:`Christos Aridas <chkoar>`.
- Fixed a bug in :class:`under_sampling.RepeatedEditedNearestNeighbours`, add
additional stopping criterion to avoid that the minority class become a
majority class or that a class disappear. By :user:`Guillaume Lemaitre
<glemaitre>`.
- Fixed a bug in :class:`under_sampling.AllKNN`, add stopping criteria to avoid
that the minority class become a majority class or that a class disappear. By
:user:`Guillaume Lemaitre <glemaitre>`.
- Fixed a bug in :class:`under_sampling.CondensedNeareastNeigbour`, correction
of the list of indices returned. By :user:`Guillaume Lemaitre <glemaitre>`.
- Fixed a bug in :class:`ensemble.BalanceCascade`, solve the issue to obtain a
single array if desired. By :user:`Guillaume Lemaitre <glemaitre>`.
- Fixed a bug in :class:`pipeline.Pipeline`, solve to embed `Pipeline` in other
`Pipeline`. :issue:`231` by :user:`Christos Aridas <chkoar>`.
- Fixed a bug in :class:`pipeline.Pipeline`, solve the issue to put to sampler
in the same `Pipeline`. :issue:`188` by :user:`Christos Aridas <chkoar>`.
- Fixed a bug in :class:`under_sampling.CondensedNeareastNeigbour`, correction
of the shape of `sel_x` when only one sample is selected. By
:user:`Aliaksei Halachkin <honeyext>`.
- Fixed a bug in :class:`under_sampling.NeighbourhoodCleaningRule`, selecting
neighbours instead of minority class misclassified samples. :issue:`230` by
:user:`Aleksandr Loskutov <loskutyan>`.
- Fixed a bug in :class:`over_sampling.ADASYN`, correction of the creation of a
new sample so that the new sample lies between the minority sample and the
nearest neighbour. :issue:`235` by :user:`Rafael Wampfler <Eichnof>`.
New features
~~~~~~~~~~~~
- Added AllKNN under sampling technique. By :user:`Dayvid Oliveira <dvro>`.
- Added a module `metrics` implementing some specific scoring function for the
problem of balancing. :issue:`204` by :user:`Guillaume Lemaitre <glemaitre>`
and :user:`Christos Aridas <chkoar>`.
Enhancement
~~~~~~~~~~~
- Added support for bumpversion. By :user:`Guillaume Lemaitre <glemaitre>`.
- Validate the type of target in binary samplers. A warning is raised for the
moment. By :user:`Guillaume Lemaitre <glemaitre>` and :user:`Christos Aridas
<chkoar>`.
- Change from `cross_validation` module to `model_selection` module for
`sklearn` deprecation cycle. By :user:`Dayvid Oliveira <dvro>` and
:user:`Christos Aridas <chkoar>`.
API changes summary
~~~~~~~~~~~~~~~~~~~
- `size_ngh` has been deprecated in :class:`combine.SMOTEENN`. Use
`n_neighbors` instead. By :user:`Guillaume Lemaitre <glemaitre>`,
:user:`Christos Aridas <chkoar>`, and :user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in
:class:`under_sampling.EditedNearestNeighbors`. Use `n_neighbors` instead. By
:user:`Guillaume Lemaitre <glemaitre>`, :user:`Christos Aridas <chkoar>`,
and :user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in
:class:`under_sampling.CondensedNeareastNeigbour`. Use `n_neighbors`
instead. By :user:`Guillaume Lemaitre <glemaitre>`,
:user:`Christos Aridas <chkoar>`, and
:user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in
:class:`under_sampling.OneSidedSelection`. Use `n_neighbors` instead. By
:user:`Guillaume Lemaitre <glemaitre>`, :user:`Christos Aridas <chkoar>`,
and :user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in
:class:`under_sampling.NeighbourhoodCleaningRule`. Use `n_neighbors`
instead. By :user:`Guillaume Lemaitre <glemaitre>`,
:user:`Christos Aridas <chkoar>`, and
:user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in
:class:`under_sampling.RepeatedEditedNearestNeighbours`. Use `n_neighbors`
instead. By :user:`Guillaume Lemaitre <glemaitre>`,
:user:`Christos Aridas <chkoar>`, and
:user:`Dayvid Oliveira <dvro>`.
- `size_ngh` has been deprecated in :class:`under_sampling.AllKNN`. Use
`n_neighbors` instead. By :user:`Guillaume Lemaitre <glemaitre>`,
:user:`Christos Aridas <chkoar>`, and :user:`Dayvid Oliveira <dvro>`.
- Two base classes :class:`BaseBinaryclassSampler` and
:class:`BaseMulticlassSampler` have been created to handle the target type
and raise warning in case of abnormality.
By :user:`Guillaume Lemaitre <glemaitre>` and :user:`Christos Aridas <chkoar>`.
- Move `random_state` to be assigned in the :class:`SamplerMixin`
initialization. By :user:`Guillaume Lemaitre <glemaitre>`.
- Provide estimators instead of parameters in :class:`combine.SMOTEENN` and
:class:`combine.SMOTETomek`. Therefore, the list of parameters have been
deprecated. By :user:`Guillaume Lemaitre <glemaitre>` and
:user:`Christos Aridas <chkoar>`.
- `k` has been deprecated in :class:`over_sampling.ADASYN`. Use `n_neighbors`
instead. :issue:`183` by :user:`Guillaume Lemaitre <glemaitre>`.
- `k` and `m` have been deprecated in :class:`over_sampling.SMOTE`. Use
`k_neighbors` and `m_neighbors` instead. :issue:`182` by :user:`Guillaume
Lemaitre <glemaitre>`.
- `n_neighbors` accept `KNeighborsMixin` based object for
:class:`under_sampling.EditedNearestNeighbors`,
:class:`under_sampling.CondensedNeareastNeigbour`,
:class:`under_sampling.NeighbourhoodCleaningRule`,
:class:`under_sampling.RepeatedEditedNearestNeighbours`, and
:class:`under_sampling.AllKNN`. :issue:`109` by :user:`Guillaume Lemaitre
<glemaitre>`.
Documentation changes
~~~~~~~~~~~~~~~~~~~~~
- Replace some remaining `UnbalancedDataset` occurences.
By :user:`Francois Magimel <Linkid>`.
- Added doctest in the documentation. By :user:`Guillaume Lemaitre
<glemaitre>`.
|
