def generate(_unit):
""""""
'''状态集合'''
states = {_: _unit for _ in range(self.__state_num)}
'''观测概率表示(GMM)'''
observations = ['GMM_probability']
'''状态转移矩阵'''
A = np.zeros((self.__state_num, self.__state_num))
'''开始状态，为虚状态，只允许向下一个状态转移'''
A[0][1] = 1.
for j in range(1, self.__state_num - 1):
for k in range(j, j + 2):
A[j][k] = 0.5
'''创建基元文件夹'''
unit_path = PARAMETERS_FILE_PATH + '/%s/%s' % (self.__unit_type,
_unit)
if not os.path.exists(unit_path):
os.mkdir(unit_path)
'''''' '''''' ''''''
log = Log(self.__unit_type, _unit, console=self.__console)
if new_log:
log.generate()
else:
log.append()
'''初始化GMM'''
gmm = [
Clustering.GMM(self.__vector_size, self.__mix_level, log)
for _ in range(self.__state_num - 2)
]
'''初始化虚状态评分类'''
virtual_gmm_1 = AcousticModel.VirtualState(0.)
virtual_gmm_2 = AcousticModel.VirtualState(0.)
gmm.insert(0, virtual_gmm_1)
gmm.append(virtual_gmm_2)
'''生成hmm实例'''
lhmm = LHMM(states,
observations,
log,
T=None,
A=A,
profunc=gmm,
pi=None)
'''数据结构：{基元：HMM,...}'''
self.__unit[_unit] = lhmm
def init_unit(self, unit, new_log=True, fix_code=0):
"""
初始化基元，生成基元的复合数据结构
:param unit: 初始化指定基元
:param new_log: 是否删除先前日志
:param fix_code: 关闭参数更新，000=0 001=1 010=2 100=4...
:return:
"""
""""""
'''状态集合'''
states = {_: unit for _ in range(self.__state_num)}
'''状态转移矩阵'''
transmat = np.zeros((self.__state_num, self.__state_num))
'''开始状态，为虚状态，只允许向下一个状态转移'''
transmat[0][1] = 1.
for j in range(1, self.__state_num - 1):
transmat[j][j] = 0.5 # 第一个转移概率
transmat[j][j + 1] = 0.5 # 第二个转移概率
'''创建基元文件夹'''
unit_path = PARAMETERS_FILE_PATH + '/%s/%s' % (self.__unit_type, unit)
log_hmm_path = unit_path + '/HMM'
log_gmm_path = [
unit_path + '/GMM_%d' % gmm_id
for gmm_id in range(self.__state_num - 2)
]
try:
os.mkdir(unit_path)
except FileExistsError:
pass
try:
os.mkdir(log_hmm_path)
except FileExistsError:
pass
try:
for gmm_id in range(self.__state_num - 2):
os.mkdir(log_gmm_path[gmm_id])
except FileExistsError:
pass
'''''' '''''' ''''''
log_hmm = Log(self.__unit_type, log_hmm_path, console=self.__console)
log_gmm = [
Log(self.__unit_type,
path=log_gmm_path[gmm_id],
console=self.__console)
for gmm_id in range(self.__state_num - 2)
]
if new_log:
log_hmm.generate()
for gmm_id in range(self.__state_num - 2):
log_gmm[gmm_id].generate()
else:
log_hmm.append()
for gmm_id in range(self.__state_num - 2):
log_gmm[gmm_id].append()
'''初始化GMM'''
gmm = []
for gmm_id in range(self.__state_num - 2):
gmm.append(
Clustering.GMM(log_gmm[gmm_id],
dimension=self.__vector_size,
mix_level=self.__mix_level,
gmm_id=gmm_id))
'''初始化虚状态评分类'''
virtual_gmm_1 = AcousticModel.VirtualState(1.)
virtual_gmm_2 = AcousticModel.VirtualState(0.)
gmm.insert(0, virtual_gmm_1)
gmm.append(virtual_gmm_2)
'''生成hmm实例'''
lhmm = LHMM(states,
self.__state_num,
log_hmm,
transmat=transmat,
profunc=gmm,
fix_code=fix_code)
return lhmm