removed numpy_rng which I wasn't using anyhow

Author: Razvan Pascanu

code/SdA.py

@@ -197,8 +197,6 @@ def __init__(self, n_visible= 784, n_hidden= 500, corruption_level = 0.1,\
 
     # create a Theano random generator that gives symbolic random values
     theano_rng = RandomStreams()
-    # create a numpy random generator
-    numpy_rng = numpy.random.RandomState()
 
     if shared_W != None and shared_b != None : 
         self.W = shared_W
@@ -407,7 +405,7 @@ def __init__(self, train_set_x, train_set_y, batch_size, n_ins,
 
 
 
-def sgd_optimization_mnist( learning_rate=0.05, pretraining_epochs = 15, \
+def sgd_optimization_mnist( learning_rate=0.1, pretraining_epochs = 20, \
                             pretrain_lr = 0.1, training_epochs = 1000, \
                             dataset='mnist.pkl.gz'):
     """