fix typo error

python/paddle/v2/dataset/cifar.py

@@ -66,12 +66,12 @@ def reader_creator(filename, sub_name):
 
 def train100():
     """
-    CIFAR-100 train set creator.
+    CIFAR-100 training set creator.
 
     It returns a reader creator, each sample in the reader is image pixels in
     [0, 1] and label in [0, 99].
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator(
@@ -93,12 +93,12 @@ def test100():
 
 def train10():
     """
-    CIFAR-10 train set creator.
+    CIFAR-10 training set creator.
 
     It returns a reader creator, each sample in the reader is image pixels in
     [0, 1] and label in [0, 9].
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator(

python/paddle/v2/dataset/conll05.py

@@ -199,12 +199,12 @@ def test():
     """
     Conll05 test set creator.
 
-    Because the train dataset is not free, the test dataset is used for
+    Because the training dataset is not free, the test dataset is used for
     training. It returns a reader creator, each sample in the reader is nine
     features, including sentence sequence, predicate, predicate context,
     predicate context flag and tagged sequence.
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     word_dict, verb_dict, label_dict = get_dict()

python/paddle/v2/dataset/imdb.py

@@ -121,14 +121,14 @@ def reader_creator(pos_pattern, neg_pattern, word_idx, buffer_size):
 
 def train(word_idx):
     """
-    IMDB train set creator.
+    IMDB training set creator.
 
     It returns a reader creator, each sample in the reader is an zero-based ID
     sequence and label in [0, 1].
 
     :param word_idx: word dictionary
     :type word_idx: dict
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator(

python/paddle/v2/dataset/imikolov.py

@@ -15,8 +15,8 @@
 imikolov's simple dataset.
 
 This module will download dataset from 
-http://www.fit.vutbr.cz/~imikolov/rnnlm/ and parse train/test set into paddle
-reader creators.
+http://www.fit.vutbr.cz/~imikolov/rnnlm/ and parse training set and test set
+into paddle reader creators.
 """
 import paddle.v2.dataset.common
 import collections
@@ -91,7 +91,7 @@ def reader_creator(filename, word_idx, n):
 
 def train(word_idx, n):
     """
-    imikolov train set creator.
+    imikolov training set creator.
 
     It returns a reader creator, each sample in the reader is a word ID
     tuple.
@@ -100,7 +100,7 @@ def train(word_idx, n):
     :type word_idx: dict
     :param n: sliding window size
     :type n: int
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator('./simple-examples/data/ptb.train.txt', word_idx, n)
@@ -117,7 +117,7 @@ def test(word_idx, n):
     :type word_idx: dict
     :param n: sliding window size
     :type n: int
-    :return: Train reader creator
+    :return: Test reader creator
     :rtype: callable
     """
     return reader_creator('./simple-examples/data/ptb.valid.txt', word_idx, n)

python/paddle/v2/dataset/mnist.py

@@ -15,7 +15,7 @@
 MNIST dataset.
 
 This module will download dataset from http://yann.lecun.com/exdb/mnist/ and
-parse train/test set into paddle reader creators.
+parse training set and test set into paddle reader creators.
 """
 import paddle.v2.dataset.common
 import subprocess
@@ -76,12 +76,12 @@ def reader_creator(image_filename, label_filename, buffer_size):
 
 def train():
     """
-    MNIST train set creator.
+    MNIST training set creator.
 
     It returns a reader creator, each sample in the reader is image pixels in
     [0, 1] and label in [0, 9].
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator(

python/paddle/v2/dataset/movielens.py

@@ -17,8 +17,8 @@ Movielens 1-M dataset.
 Movielens 1-M dataset contains 1 million ratings from 6000 users on 4000
 movies, which was collected by GroupLens Research. This module will download
 Movielens 1-M dataset from 
-http://files.grouplens.org/datasets/movielens/ml-1m.zip and parse train/test
-set into paddle reader creators.
+http://files.grouplens.org/datasets/movielens/ml-1m.zip and parse training
+set and test set into paddle reader creators.
 
 """
 

python/paddle/v2/dataset/sentiment.py

@@ -113,7 +113,7 @@ def reader_creator(data):
 
 def train():
     """
-    Default train set reader creator
+    Default training set reader creator
     """
     data_set = load_sentiment_data()
     return reader_creator(data_set[0:NUM_TRAINING_INSTANCES])

python/paddle/v2/dataset/uci_housing.py

@@ -16,7 +16,7 @@ UCI Housing dataset.
 
 This module will download dataset from
 https://archive.ics.uci.edu/ml/machine-learning-databases/housing/ and
-parse train/test set into paddle reader creators.
+parse training set and test set into paddle reader creators.
 """
 
 import numpy as np
@@ -73,12 +73,12 @@ def load_data(filename, feature_num=14, ratio=0.8):
 
 def train():
     """
-    UCI_HOUSING train set creator.
+    UCI_HOUSING training set creator.
 
     It returns a reader creator, each sample in the reader is features after
     normalization and price number.
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     global UCI_TRAIN_DATA

python/paddle/v2/dataset/wmt14.py

@@ -16,7 +16,7 @@ WMT14 dataset.
 The original WMT14 dataset is too large and a small set of data for set is
 provided. This module will download dataset from
 http://paddlepaddle.cdn.bcebos.com/demo/wmt_shrinked_data/wmt14.tgz and
-parse train/test set into paddle reader creators.
+parse training set and test set into paddle reader creators.
 
 """
 import tarfile
@@ -105,13 +105,13 @@ def reader_creator(tar_file, file_name, dict_size):
 
 def train(dict_size):
     """
-    WMT14 train set creator.
+    WMT14 training set creator.
 
     It returns a reader creator, each sample in the reader is source language
     word ID sequence, target language word ID sequence and next word ID
     sequence.
 
-    :return: Train reader creator
+    :return: Training reader creator
     :rtype: callable
     """
     return reader_creator(
@@ -126,7 +126,7 @@ def test(dict_size):
     word ID sequence, target language word ID sequence and next word ID
     sequence.
 
-    :return: Train reader creator
+    :return: Test reader creator
     :rtype: callable
     """
     return reader_creator(