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added BGPLVM oil flow demo and changed default X_variance init

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This commit is contained in:
Nicolo Fusi 2013-03-21 15:28:46 +00:00
parent 8ab1cfaf65
commit eeb965d136
3 changed files with 30 additions and 2 deletions
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2
GPy/inference/SGD.py
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@ -242,8 +242,8 @@ class opt_SGD(Optimizer):
f, step, Nj = self.step_with_missing_data(f_fp, X, step, shapes, sparse_matrix)
else:
Nj = N
# momentum_term = self.momentum * step # compute momentum using update(t-1)
f, fp = f_fp(self.x_opt)
# momentum_term = self.momentum * step # compute momentum using update(t-1)
# step = self.learning_rate * fp # compute update(t)
# self.x_opt -= step + momentum_term
step = self.momentum * step + self.learning_rate * fp