def gen_pinyin2hanzi(pinyin, num=5):
results = {}
hmmparams = DefaultHmmParams()
result = viterbi(hmm_params=hmmparams,
observations=pinyin,
path_num=num,
log=True)
for item in result:
# results.setdefault(''.join(item.path),0)
results[''.join(item.path)] = item.score
return results
def top_k_transform(importance_score, list_of_texts, porpotion, new_word_dictionary, black_list_word):
hmmparams = DefaultHmmParams() # HMM pinyin2hanzi
target_text = list_of_texts
target_text = tokenize(target_text).split(' ')
k = int(len(target_text)*porpotion) + 1
top_k_score = heapq.nlargest(k, importance_score)
top_k_score_index = [importance_score.index(score) for score in top_k_score]
for index in top_k_score_index:
# make a virables repsent modified list_of_text
gedit_text = copy.deepcopy(list_of_texts)
if(is_Chinese(target_text[index])):
pinyin_of_target_text = lazy_pinyin(target_text[index])
if pinyin_of_target_text == ['ni']:
pinyin_of_target_text = random.choice([['li'], ['ni']])
if pinyin_of_target_text == ['ta']:
pinyin_of_target_text = random.choice([['ta'], ['te']])
if pinyin_of_target_text == ['cao']:
pinyin_of_target_text = random.choice([['ca'], ['cao']])
if pinyin_of_target_text == ['ma']:
pinyin_of_target_text = random.choice([['me'], ['ma']])
if pinyin_of_target_text == ['si']:
pinyin_of_target_text = random.choice([['shi'], ['si']])
try:
#pinyin to other Chinese
hanzi_of_target_test = viterbi(hmm_params=hmmparams, observations=pinyin_of_target_text, path_num = 10)
# choose a word randly
# target_text[index] = ''.join(random.choice(hanzi_of_target_test).path)
# caculate the similarity between original word and transferable word
# use greedy algorithm
m_destination_word = calculate_similarity(target_text, index, list_of_texts[i], hanzi_of_target_test, gedit_text, black_list_word)
target_text[index] = m_destination_word
list_of_texts = ''.join(target_text)
# 加入新词字典
temp = new_word_dictionary.get(m_destination_word,0)
temp += 1
# 如果这个新词已经出现了10次，那么把它加到黑名单里
if(temp < 20):
new_word_dictionary[m_destination_word] = temp
else:
new_word_dictionary.pop(m_destination_word)
black_list_word.append(m_destination_word)
except:
pass
else:
continue
return list_of_texts
def get(self):
"""get请求"""
word = self.get_argument('word') + " end"
num = self.get_argument('num')
list = []
result = viterbi(hmm_params=hmmparams,
observations=(tuple(word.split(" "))),
path_num=num,
log=True)
for item in result:
result = {item.score, item.path}
list.append(result)
print(item.score, item.path)
self.write(json.dumps(list))
def transfer_pinyin_to_hanzi_by_hmm(sets):
"""
HMM模式拼音转汉字
:param sets:
:return:
"""
try:
result = viterbi(hmm_params=hmmparams, observations=sets, path_num=1, log=True)
path = ''
for item in result:
path = item.path
except Exception as error:
raise Exception('error:', error)
else:
return path
#!/usr/bin/env python # -*- coding: utf-8 -*- from pypinyin import pinyin, lazy_pinyin, Style from Pinyin2Hanzi import DefaultHmmParams from Pinyin2Hanzi import viterbi txt = u'锄禾日当午' py = lazy_pinyin(txt) hmmparams = DefaultHmmParams() result = viterbi(hmm_params=hmmparams, observations=py, path_num = 1) for item in result: txt_rtn = u''.join(item.path) if txt == txt_rtn: print u'OK' else: print u'Error: %s -> %s -> %s' % (txt, py, txt_rtn)
def emission(self, state, observation):
''' state (hanzi) -> observation (pinyin) '''
return self.emission_probability[state][observation]
def transition(self, from_state, to_state):
''' state -> state '''
return self.transition_probability[from_state][to_state]
def get_states(self, observation):
''' get states which produce the given obs '''
return self.states
result = viterbi(hmm_params=HmmParams(),
observations=('normal', 'cold', 'dizzy'),
path_num=10,
log=False)
for item in result:
print(item.score, item.path)
print(20 * '--')
result = viterbi(hmm_params=HmmParams(),
observations=('normal', 'cold', 'dizzy'),
path_num=2,
log=False)
for item in result:
print(item.score, item.path)
print(20 * '--')
# coding: utf-8
from __future__ import (print_function, unicode_literals)
import sys
sys.path.append('..')
from Pinyin2Hanzi import DefaultHmmParams
from Pinyin2Hanzi import viterbi
hmmparams = DefaultHmmParams()
result = viterbi(hmm_params=hmmparams,
observations=('ni', 'hao', 'a'),
path_num=5,
log=True)
for item in result:
print(item.score, '/'.join(item.path))
print(20 * '--')
result = viterbi(hmm_params=hmmparams,
observations=('ni', 'hao', 'a'),
path_num=2,
log=True)
for item in result:
print(item.score, '/'.join(item.path))
print(20 * '--')
result = viterbi(hmm_params=hmmparams,
observations=('chuang', 'qian', 'ming', 'yve', 'guang'),
return self.start_probability[state]
def emission(self, state, observation):
''' state (hanzi) -> observation (pinyin) '''
return self.emission_probability[state][observation]
def transition(self, from_state, to_state):
''' state -> state '''
return self.transition_probability[from_state][to_state]
def get_states(self, observation):
''' get states which produce the given obs '''
return self.states
result = viterbi(hmm_params=HmmParams(), observations=('normal', 'cold', 'dizzy'), path_num = 10, log = False)
for item in result:
print(item.score, item.path)
print(20*'--')
result = viterbi(hmm_params=HmmParams(), observations=('normal', 'cold', 'dizzy'), path_num = 2, log = False)
for item in result:
print(item.score, item.path)
print(20*'--')
result = viterbi(hmm_params=HmmParams(), observations=('normal', 'cold', 'dizzy'), path_num = 1, log = False)
for item in result:
print(item.score, item.path)
def interactive(client, addr):
global re_string, pyt
seq = []
with open("Files/simple_words.txt", "r", encoding='UTF-8') as read:
for line in read:
line = line.strip()
seq.append(line)
voca = {}
with open("Files/vocabulary.txt", "r", encoding='UTF-8') as read:
for line in read:
line = line.strip().split(":")
voca[line[0]] = line[1]
while True:
try:
text = client.recv(4096).decode('UTF-8')
text = text.split('\t')[1]
re_string = ""
if text == "" or text == "send":
text = 'send\t' + ""
client.send(text.encode('UTF-8'))
print("Text is NULL but send")
else:
if "send" in text:
text = text[0:len(text) - 4]
words = pyt.scan(str(text))
re_tup = tuple()
for item in words:
if "invalid" not in item:
# tmp += item + "\'"
if not is_pinyin(item):
item = simplify_pinyin(item)
tmp = (item, )
re_tup += tmp
print("Recv: ", end="")
print(re_tup)
re_string = ""
try:
re_string = ""
result = viterbi(hmm_params=hmm,
observations=re_tup,
path_num=3,
log=True)
n = 0
for item in result:
n += 1
string_t = str(n) + "."
re_string += string_t
for word in item.path:
re_string += word
re_string += "\n"
tmp = ""
for item in result:
for word in item.path:
tmp += word
break
for i in range(0, len(seq)):
if tmp in seq[i][0:len(tmp)] and len(
seq[i]) > len(tmp):
n += 1
string_t = str(n) + "."
re_string += string_t + seq[i] + "\n"
if n == 6:
break
if text in voca.keys():
n += 1
string_t = str(n) + "."
re_string += string_t + voca[text] + "\n"
dan_tup = (re_tup[0], )
result = viterbi(hmm_params=hmm,
observations=dan_tup,
path_num=100,
log=True)
for item in result:
n += 1
if n == 9:
n = 1
string_t = str(n) + "."
re_string += string_t
for word in item.path:
re_string += word
re_string += "\n"
re_string = "send\t" + re_string
client.send(re_string.encode('UTF-8'))
print(re_string)
except:
print("Recv Error")
except:
print(str(addr) + 'is out')
client.close()
break
from Pinyin2Hanzi import DefaultHmmParams
from Pinyin2Hanzi import viterbi
hmmparams = DefaultHmmParams()
## 2个候选
result = viterbi(hmm_params=hmmparams,
observations=('ni', 'zhi', 'bu', 'zhi', 'dao'),
path_num=2)
for item in result:
print(item.score, item.path)
'''输出
1.3155294593897203e-08 ['你', '知', '不', '知', '道']
3.6677865125992192e-09 ['你', '只', '不', '知', '道']
'''
## 2个候选，使用对数打分
result = viterbi(hmm_params=hmmparams,
observations=('ni', 'zhi', 'bu', 'zhi', 'dao'),
path_num=2,
log=True)
for item in result:
print(item.score, item.path)
'''输出
-18.14644152864202 ['你', '知', '不', '知', '道']
-19.423677486918002 ['你', '只', '不', '知', '道']
'''
## 2个候选，使用对数打分
# result = viterbi(hmm_params=hmmparams, observations=('ni', 'zhii', 'bu', 'zhi', 'dao'), path_num = 2, log = True)
# for item in result:
