def load_data(w2v_model=None):
print("laoding data")
x_text, y = data_helpers.load_data_and_labels(train_data_file)
max_document_length = max([len(x.split(" ")) for x in x_text])
if (w2v_model == None):
vocab_processor = learn.preprocessing.VocabularyProcessor(
max_document_length)
x = np.array(list(vocab_processor.fit_transform(x_text)))
vocab_size = len(vocab_processor.vocabulary_)
else:
x = data_helpers.get_text_idx(x_text, w2v_model.vocab_hash,
max_document_length)
vocab_size = len(w2v_model.vocab_hash)
print('use w2v .bin')
np.random.seed(10)
shuffle_indices = np.random.permutation(np.arange(len(y)))
x_shuffled = x[shuffle_indices]
y_shuffled = y[shuffle_indices]
dev_sample_index = -1 * int(dev_sample_percentage * float(len(y)))
x_train, x_dev = x_shuffled[:dev_sample_index], x_shuffled[
dev_sample_index:]
y_train, y_dev = y_shuffled[:dev_sample_index], y_shuffled[
dev_sample_index:]
return x_train, x_dev, y_train, y_dev, vocab_size
def load_data(w2v_model):
"""Loads starter word-vectors and train/dev/test data."""
# Load the starter word vectors
print("Loading data...")
x_text, y = load_data_and_labels(FLAGS.train_data_file)
max_document_length = max([len(x.split(" ")) for x in x_text]) # 文本最长长度
print('len(x) = ', len(x_text), ' ', len(y))
print(' max_document_length = ', max_document_length)
if (w2v_model is None):
vocab_processor = learn.preprocessing.VocabularyProcessor(
max_document_length)
x = np.array(list(vocab_processor.fit_transform(x_text)))
vocab_size = len(vocab_processor.vocabulary_)
# out_dir = os.path.abspath(os.path.join(os.path.curdir, "runs", str(int(time.time()))))
vocab_processor.save("vocab.txt")
print('save vocab.txt')
else:
x = get_text_idx(x_text, w2v_model.vocab_hash, max_document_length)
vocab_size = len(w2v_model.vocab_hash)
print('use w2v .bin')
np.random.seed(10)
shuffle_indices = np.random.permutation(np.arange(len(y)))
x_shuffled = x[shuffle_indices]
y_shuffled = y[shuffle_indices]
dev_sample_index = -1 * int(FLAGS.dev_sample_percentage * float(len(y)))
x_train, x_dev = x_shuffled[:dev_sample_index], x_shuffled[
dev_sample_index:]
y_train, y_dev = y_shuffled[:dev_sample_index], y_shuffled[
dev_sample_index:]
return x_train, x_dev, y_train, y_dev, vocab_size
def load_data(w2v_model, max_document_length=1290):
print("Loading data...")
x_text, y_test = data_helpers.load_data_and_labels(FLAGS.valid_data_file)
y_test = np.argmax(y_test, axis=1)
if (max_document_length == 0):
max_document_length = max([len(x.split(" ")) for x in x_text])
print('max_document_length = ', max_document_length)
x = data_helpers.get_text_idx(x_text, w2v_model.vocab_hash,
max_document_length)
return x, y_test
def load_data(w2v_model):
"""Loads starter word-vectors and train/dev/test data."""
# Load the starter word vectors
print("Loading data...")
x_text, y = data_helpers.load_data_and_labels(FLAGS.train_data_file)
# for x in x_text:
# l = len(x.split(" "))
# break
max_document_length = max([len(x.split(" ")) for x in x_text])
print('len(x) = ', len(x_text), ' ', len(y))
print(' max_document_length = ', max_document_length)
x = []
vocab_size = 0
if (w2v_model is None):
vocab_processor = learn.preprocessing.VocabularyProcessor(
max_document_length)
x = np.array(list(vocab_processor.fit_transform(x_text)))
vocab_size = len(vocab_processor.vocabulary_)
# out_dir = os.path.abspath(os.path.join(os.path.curdir, "runs", str(int(time.time()))))
vocab_processor.save("vocab.txt")
print('save vocab.txt')
else:
x = data_helpers.get_text_idx(x_text, w2v_model.vocab_hash,
max_document_length)
vocab_size = len(w2v_model.vocab_hash)
print('use w2v .bin')
np.random.seed(10)
shuffle_indices = np.random.permutation(np.arange(len(y)))
# print(type(shuffle_indices)) # <class 'numpy.ndarray'>
# print(type(x)) # <class 'numpy.ndarray'>
# print(x[1]) # [7942 181 949 ... 0 0 0]
# print(x[2]) # [7942 174 5 ... 0 0 0]
# print(x[1, 2]) # 949
# print(x[[1, 2]]) # [[7942 181 949 ... 0 0 0],[7942 174 5 ... 0 0 0]]
# print(x[(1, 2)]) # 949
x_shuffled = x[shuffle_indices]
# print(x_shuffled)
# exit()
y_shuffled = y[shuffle_indices]
dev_sample_index = -1 * int(FLAGS.dev_sample_percentage * float(len(y)))
x_train, x_dev = x_shuffled[:dev_sample_index], x_shuffled[
dev_sample_index:]
y_train, y_dev = y_shuffled[:dev_sample_index], y_shuffled[
dev_sample_index:]
return x_train, x_dev, y_train, y_dev, vocab_size
def load_data(w2v_model):
"""Loads starter word-vectors and train/dev/test data."""
#“加载启动词向量和训练/开发/测试数据。
# Load the starter word vectors加载起始词向量
print("Loading data...")
x_text, y = data_helpers.load_data_and_labels(FLAGS.train_data_file)
max_document_length = max([len(x.split(" ")) for x in x_text])
print('len(x) = ', len(x_text), ' ', len(y))
print(' max_document_length = ', max_document_length)
x = []
vocab_size = 0
if (w2v_model is None):
#learn.preprocessing.VocabularyProcessor(max_document_length)
#根据所有已分词好的文本建立好一个词典，然后找出每个词在词典中对应的索引，不足长度或者不存在的词补0
#max_document_length 最大文档长度
vocab_processor = learn.preprocessing.VocabularyProcessor(
max_document_length)
#从x_text中学习到一个词汇表并返回一个id矩阵
x = np.array(list(vocab_processor.fit_transform(x_text)))
vocab_size = len(vocab_processor.vocabulary_)
# out_dir = os.path.abspath(os.path.join(os.path.curdir, "runs", str(int(time.time()))))
vocab_processor.save("vocab.txt")
print('save vocab.txt')
else:
x = data_helpers.get_text_idx(x_text, w2v_model.vocab_hash,
max_document_length)
vocab_size = len(w2v_model.vocab_hash)
print('use w2v .bin')
#索引值处理
#训练集和测试集的获取
np.random.seed(10) #设定一个随机数种子
shuffle_indices = np.random.permutation(np.arange(len(y)))
x_shuffled = x[shuffle_indices]
y_shuffled = y[shuffle_indices]
dev_sample_index = -1 * int(FLAGS.dev_sample_percentage * float(len(y)))
x_train, x_dev = x_shuffled[:dev_sample_index], x_shuffled[
dev_sample_index:]
y_train, y_dev = y_shuffled[:dev_sample_index], y_shuffled[
dev_sample_index:]
return x_train, x_dev, y_train, y_dev, vocab_size #返回训练集和测试集，还有词向量大小
def load_data(w2v_model,max_document_length = 20):
"""Loads starter word-vectors and train/dev/test data."""
# Load the starter word vectors
print("Loading data...")
x_text, y_test = data_helpers.load_data_and_labels(FLAGS.valid_data_file)
y_test = np.argmax(y_test, axis=1)
if(max_document_length == 0) :
max_document_length = max([len(x.split(" ")) for x in x_text])
print ('max_document_length = ' , max_document_length)
x = data_helpers.get_text_idx(x_text,w2v_model.vocab_hash,max_document_length)
return x,y_test
def load_data(w2v_model):
print("Loading data...")
x_text, y = data_helpers.load_data_and_labels(FLAGS.train_data_file)
max_document_length = max([len(x.split(" ")) for x in x_text])
print('len(x) = ', len(x_text), ' ', len(y))
print(' max_document_length = ', max_document_length)
x = []
vocab_size = 0
if (w2v_model is None):
# 随机初始化
vocab_processor = learn.preprocessing.VocabularyProcessor(
max_document_length)
x = np.array(list(vocab_processor.fit_transform(x_text)))
vocab_size = len(vocab_processor.vocabulary_)
vocab_processor.save("vocab.dat")
print('save vocab.dat')
else:
# 加载离线w2v
x = data_helpers.get_text_idx(x_text, w2v_model.vocab_hash,
max_document_length)
vocab_size = len(w2v_model.vocab_hash)
print('use w2v .bin')
# shuffle
np.random.seed(10)
shuffle_indices = np.random.permutation(np.arange(len(y)))
x_shuffled = x[shuffle_indices]
y_shuffled = y[shuffle_indices]
dev_sample_index = -1 * int(FLAGS.dev_sample_percentage * float(len(y)))
x_train, x_dev = x_shuffled[:dev_sample_index], x_shuffled[
dev_sample_index:]
y_train, y_dev = y_shuffled[:dev_sample_index], y_shuffled[
dev_sample_index:]
return x_train, x_dev, y_train, y_dev, vocab_size
