@@ -9,8 +9,8 @@ Semi-Supervised
99`Semi-supervised learning
1010<http://en.wikipedia.org/wiki/Semi-supervised_learning> `_ is a situation
1111in which in your training data some of the samples are not labeled. The
12- semi-supervised estimators, in :mod: `sklean .semi_supervised ` are able to
13- make use of this addition unlabeled data to capture better the shape of
12+ semi-supervised estimators in :mod: `sklearn .semi_supervised ` are able to
13+ make use of this additional unlabeled data to better capture the shape of
1414the underlying data distribution and generalize better to new samples.
1515These algorithms can perform well when we have a very small amount of
1616labeled points and a large amount of unlabeled points.
@@ -19,14 +19,14 @@ labeled points and a large amount of unlabeled points.
1919
2020 It is important to assign an identifier to unlabeled points along with the
2121 labeled data when training the model with the `fit ` method. The identifier
22- that this implementation uses the integer value :math: `-1 `.
22+ that this implementation uses is the integer value :math: `-1 `.
2323
2424.. _label_propagation :
2525
2626Label Propagation
2727=================
2828
29- Label propagation denote a few variations of semi-supervised graph
29+ Label propagation denotes a few variations of semi-supervised graph
3030inference algorithms.
3131
3232A few features available in this model:
@@ -75,11 +75,11 @@ available:
7575 * knn (:math: `1 [x' \in kNN(x)]`). :math: `k` is specified by keyword
7676 n_neighbors.
7777
78- RBF kernel will produce a fully connected graph which is represented in memory
78+ The RBF kernel will produce a fully connected graph which is represented in memory
7979by a dense matrix. This matrix may be very large and combined with the cost of
8080performing a full matrix multiplication calculation for each iteration of the
8181algorithm can lead to prohibitively long running times. On the other hand,
82- the KNN kernel will produce a much more memory friendly sparse matrix
82+ the KNN kernel will produce a much more memory- friendly sparse matrix
8383which can drastically reduce running times.
8484
8585.. topic :: Examples
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