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from __future__ import absolute_import, division, print_function
import os
from six import moves
import ssl
import tflearn
from tflearn.data_utils import *
path = "US_Cities.txt"
if not os.path.isfile(path):
context = ssl._create_unverified_context()
moves.urllib.request.urlretrieve("", path, context=context)
maxlen = 20
string_utf8 = open(path, "r").read().decode('utf-8')
X, Y, char_idx = \
string_to_semi_redundant_sequences(string_utf8, seq_maxlen=maxlen, redun_step=3)
g = tflearn.input_data(shape=[None, maxlen, len(char_idx)])
g = tflearn.lstm(g, 512, return_seq=True)
g = tflearn.dropout(g, 0.5)
g = tflearn.lstm(g, 512)
g = tflearn.dropout(g, 0.5)
g = tflearn.fully_connected(g, len(char_idx), activation='softmax')
g = tflearn.regression(g, optimizer='adam', loss='categorical_crossentropy',
m = tflearn.SequenceGenerator(g, dictionary=char_idx,
for i in range(40):
seed = random_sequence_from_string(string_utf8, maxlen), Y, validation_set=0.1, batch_size=128,
n_epoch=1, run_id='us_cities')
print("-- TESTING...")
print("-- Test with temperature of 1.2 --")
print(m.generate(30, temperature=1.2, seq_seed=seed).encode('utf-8'))
print("-- Test with temperature of 1.0 --")
print(m.generate(30, temperature=1.0, seq_seed=seed).encode('utf-8'))
print("-- Test with temperature of 0.5 --")
print(m.generate(30, temperature=0.5, seq_seed=seed).encode('utf-8'))