DOC Restructure Multiclass and multilabel in User Guide (scikit-learn…

…#17811)

doc/glossary.rst

@@ -1037,7 +1037,9 @@ Target Types
  identified as 'multiclass'.
 
  continuous multioutput
+ continuous multi-output
  multioutput continuous
+ multi-output continuous
  A regression problem where each sample's target consists of ``n_outputs``
  :term:`outputs`, each one a finite floating point number, for a
  fixed int ``n_outputs > 1`` in a particular dataset.
@@ -1052,6 +1054,7 @@ Target Types
  'multiclass-multioutput'.
 
  multiclass
+ multi-class
  A classification problem consisting of more than two classes. A
  multiclass target may be represented as a 1-dimensional array of
  strings or integers. A 2d column vector of integers (i.e. a
@@ -1075,7 +1078,9 @@ Target Types
  identically to 'multiclass'.
 
  multiclass multioutput
+ multi-class multi-output
  multioutput multiclass
+ multi-output multi-class
  A classification problem where each sample's target consists of
  ``n_outputs`` :term:`outputs`, each a class label, for a fixed int
  ``n_outputs > 1`` in a particular dataset. Each output has a
@@ -1101,6 +1106,7 @@ Target Types
  'multiclass-multioutput' for multiclass multioutput input.
 
  multilabel
+ multi-label
  A :term:`multiclass multioutput` target where each output is
  :term:`binary`. This may be represented as a 2d (dense) array or
  sparse matrix of integers, such that each column is a separate binary

doc/modules/classes.rst

@@ -1220,14 +1220,14 @@ Model validation
 
 .. _multiclass_ref:
 
-:mod:`sklearn.multiclass`: Multiclass and multilabel classification
-===================================================================
+:mod:`sklearn.multiclass`: Multiclass classification
+====================================================
 
 .. automodule:: sklearn.multiclass
  :no-members:
  :no-inherited-members:
 
-**User guide:** See the :ref:`multiclass` section for further details.
+**User guide:** See the :ref:`multiclass_classification` section for further details.
 
 .. currentmodule:: sklearn
 
@@ -1248,7 +1248,9 @@ Model validation
  :no-members:
  :no-inherited-members:
 
-**User guide:** See the :ref:`multiclass` section for further details.
+**User guide:** See the :ref:`multilabel_classification`,
+:ref:`multiclass_multioutput_classification`, and
+:ref:`multioutput_regression` sections for further details.
 
 .. currentmodule:: sklearn