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Fariba 2015-07-27 17:30:24 +01:00
parent 9b54f831b3
commit e785668417
2 changed files with 8 additions and 6 deletions
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10
GPy/core/parameterization/priors.py
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@ -843,7 +843,7 @@ class DGPLVM_Lamda(Prior, Parameterized):
# Calculating beta and Bi for Sb
def compute_sig_beta_Bi(self, data_idx, M_i, M_0, lst_idx_all):
import pdb
# import pdb
# pdb.set_trace()
B_i = np.zeros((self.classnum, self.dim))
Sig_beta_B_i_all = np.zeros((self.datanum, self.dim))
@ -909,8 +909,8 @@ class DGPLVM_Lamda(Prior, Parameterized):
Sw = self.compute_Sw(cls, M_i)
# Sb_inv_N = np.linalg.inv(Sb + np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))
#Sb_inv_N = np.linalg.inv(Sb+np.eye(Sb.shape[0])*0.1)
#Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))[0]
Sb_inv_N = pdinv(Sb + np.eye(Sb.shape[0])*0.1)[0]
#Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.5))[0]
Sb_inv_N = pdinv(Sb + np.eye(Sb.shape[0])*0.9)[0]
return (-1 / self.sigma2) * np.trace(Sb_inv_N.dot(Sw))
# This function calculates derivative of the log of prior function
@ -933,8 +933,8 @@ class DGPLVM_Lamda(Prior, Parameterized):
# Calculating inverse of Sb and its transpose and minus
# Sb_inv_N = np.linalg.inv(Sb + np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))
#Sb_inv_N = np.linalg.inv(Sb+np.eye(Sb.shape[0])*0.1)
#Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.1))[0]
Sb_inv_N = pdinv(Sb + np.eye(Sb.shape[0])*0.1)[0]
#Sb_inv_N = pdinv(Sb+ np.eye(Sb.shape[0]) * (np.diag(Sb).min() * 0.5))[0]
Sb_inv_N = pdinv(Sb + np.eye(Sb.shape[0])*0.9)[0]
Sb_inv_N_trans = np.transpose(Sb_inv_N)
Sb_inv_N_trans_minus = -1 * Sb_inv_N_trans
Sw_trans = np.transpose(Sw)