def set_up_dynamic_pooling_layer():
tree = file_parser('test\pruebas.py')
ls_nodes, dict_ast_to_Node = node_object_creator(tree)
ls_nodes = node_position_assign(ls_nodes)
ls_nodes, dict_sibling = node_sibling_assign(ls_nodes)
embed = Embedding(20, ls_nodes, dict_ast_to_Node)
ls_nodes = embed.node_embedding()[:]
vector_representation = First_neural_network(ls_nodes, dict_ast_to_Node,
20, 0.1, 0.001)
ls_nodes, w_l, w_r, b_code = vector_representation.vector_representation()
w_comb1 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
w_comb2 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
coding_layer = Coding_layer(20, w_comb1, w_comb2)
ls_nodes = coding_layer.coding_layer(ls_nodes, dict_ast_to_Node, w_l, w_r,
b_code)
w_t = torch.randn(4, 20, requires_grad=True)
w_r = torch.randn(4, 20, requires_grad=True)
w_l = torch.randn(4, 20, requires_grad=True)
b_conv = torch.randn(4, requires_grad=True)
convolutional_layer = Convolutional_layer(20,
w_t,
w_r,
w_l,
b_conv,
features_size=4)
ls_nodes = convolutional_layer.convolutional_layer(ls_nodes,
dict_ast_to_Node)
max_pooling_layer = Max_pooling_layer()
max_pooling_layer.max_pooling(ls_nodes)
dynamic_pooling = Dynamic_pooling_layer()
hidden_input = dynamic_pooling.three_way_pooling(ls_nodes, dict_sibling)
return ls_nodes, hidden_input
def set_up_one_max_pooling_layer():
path = os.path.join('test', 'generators')
data = os.path.join(path, 'prueba.py')
tree = file_parser(data)
ls_nodes, dict_ast_to_Node = node_object_creator(tree)
ls_nodes = node_position_assign(ls_nodes)
ls_nodes, dict_sibling = node_sibling_assign(ls_nodes)
ls_nodes = leaves_nodes_assign(ls_nodes, dict_ast_to_Node)
ls_nodes = leaves_nodes_assign(ls_nodes, dict_ast_to_Node)
embed = Embedding(20, ls_nodes, dict_ast_to_Node)
ls_nodes = embed.node_embedding()[:]
vector_representation = First_neural_network(ls_nodes, dict_ast_to_Node,
20, 0.1, 0.001, 0, 5)
ls_nodes, w_l, w_r, b_code = vector_representation.vector_representation()
w_comb1 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
w_comb2 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
coding_layer = Coding_layer(20, w_comb1, w_comb2)
ls_nodes = coding_layer.coding_layer(ls_nodes, dict_ast_to_Node, w_l, w_r,
b_code)
w_t = torch.randn(4, 20, requires_grad=True)
w_r = torch.randn(4, 20, requires_grad=True)
w_l = torch.randn(4, 20, requires_grad=True)
b_conv = torch.randn(4, requires_grad=True)
convolutional_layer = Convolutional_layer(20,
w_t,
w_r,
w_l,
b_conv,
features_size=4)
ls_nodes = convolutional_layer.convolutional_layer(ls_nodes,
dict_ast_to_Node)
pooling_layer = Pooling_layer()
pooled_tensor = pooling_layer.pooling_layer(ls_nodes)
return pooled_tensor
def __init__(self, n=20, m=4, pooling='one-way pooling'):
self.vector_size = n
self.feature_size = m
# parameters
self.w_comb1 = torch.diag(
torch.randn(self.vector_size,
dtype=torch.float32)).requires_grad_()
self.w_comb2 = torch.diag(
torch.randn(self.vector_size,
dtype=torch.float32)).requires_grad_()
self.w_t = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.w_r = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.w_l = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.b_conv = torch.randn(self.feature_size, requires_grad=True)
# pooling method
self.pooling = pooling
if self.pooling == 'three-way pooling':
self.w_hidden = torch.randn(3, requires_grad=True)
self.b_hidden = torch.randn(1, requires_grad=True)
self.dynamic = Dynamic_pooling_layer()
self.max_pool = Max_pooling_layer()
else:
self.w_hidden = torch.randn(self.feature_size, requires_grad=True)
self.b_hidden = torch.randn(1, requires_grad=True)
self.pooling = Pooling_layer()
# layers
self.cod = Coding_layer(self.vector_size, self.w_comb1, self.w_comb2)
self.conv = Convolutional_layer(self.vector_size,
self.w_t,
self.w_r,
self.w_l,
self.b_conv,
features_size=self.feature_size)
self.hidden = Hidden_layer(self.w_hidden, self.b_hidden)
def set_up_hidden_layer():
path = os.path.join('test', 'generators')
data = os.path.join(path, 'prueba.py')
tree = file_parser(data)
ls_nodes, dict_ast_to_Node = node_object_creator(tree)
ls_nodes = node_position_assign(ls_nodes)
ls_nodes, dict_sibling = node_sibling_assign(ls_nodes)
ls_nodes = leaves_nodes_assign(ls_nodes, dict_ast_to_Node)
embed = Embedding(20, ls_nodes, dict_ast_to_Node)
ls_nodes = embed.node_embedding()[:]
vector_representation = First_neural_network(ls_nodes, dict_ast_to_Node,
20, 0.1, 0.001, 0, 5)
ls_nodes, w_l, w_r, b_code = vector_representation.vector_representation()
w_comb1 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
w_comb2 = torch.diag(torch.randn(20, dtype=torch.float32)).requires_grad_()
coding_layer = Coding_layer(20, w_comb1, w_comb2)
ls_nodes = coding_layer.coding_layer(ls_nodes, dict_ast_to_Node, w_l, w_r,
b_code)
w_t = torch.randn(4, 20, requires_grad=True)
w_r = torch.randn(4, 20, requires_grad=True)
w_l = torch.randn(4, 20, requires_grad=True)
b_conv = torch.randn(4, requires_grad=True)
convolutional_layer = Convolutional_layer(20,
w_t,
w_r,
w_l,
b_conv,
features_size=4)
ls_nodes = convolutional_layer.convolutional_layer(ls_nodes,
dict_ast_to_Node)
max_pooling_layer = Max_pooling_layer()
max_pooling_layer.max_pooling(ls_nodes)
dynamic_pooling = Dynamic_pooling_layer()
hidden_input = dynamic_pooling.three_way_pooling(ls_nodes, dict_sibling)
w_hidden = torch.randn(3, requires_grad=True)
b_hidden = torch.randn(1, requires_grad=True)
hidden = Hidden_layer(w_hidden, b_hidden)
output_hidden = hidden.hidden_layer(hidden_input)
return output_hidden, w_hidden, b_hidden
def __init__(self, n=30, m=100, pooling='one-way pooling'):
self.vector_size = n
self.feature_size = m
# parameters
w_comb1 = numpy.genfromtxt("params\\w_comb1.csv", delimiter=",")
self.w_comb1 = torch.tensor(w_comb1, dtype=torch.float32)
w_comb2 = numpy.genfromtxt("params\\w_comb2.csv", delimiter=",")
self.w_comb2 = torch.tensor(w_comb2, dtype=torch.float32)
w_t = numpy.genfromtxt("params\\w_t.csv", delimiter=",")
self.w_t = torch.tensor(w_t, dtype=torch.float32)
w_r = numpy.genfromtxt("params\\w_r.csv", delimiter=",")
self.w_r = torch.tensor(w_r, dtype=torch.float32)
w_l = numpy.genfromtxt("params\\w_l.csv", delimiter=",")
self.w_l = torch.tensor(w_l, dtype=torch.float32)
b_conv = numpy.genfromtxt("params\\b_conv.csv", delimiter=",")
self.b_conv = torch.tensor(b_conv, dtype=torch.float32)
w_hidden = numpy.genfromtxt("params\\w_hidden.csv", delimiter=",")
self.w_hidden = torch.tensor(w_hidden, dtype=torch.float32)
b_hidden = numpy.genfromtxt("params\\b_hidden.csv", delimiter=",")
self.b_hidden = torch.tensor(b_hidden, dtype=torch.float32)
# pooling method
self.pooling = pooling
if self.pooling == 'one-way pooling':
self.pooling_layer = Pooling_layer()
else:
self.dynamic = Dynamic_pooling_layer()
self.max_pool = Max_pooling_layer()
### Layers
self.cod = Coding_layer(self.vector_size, self.w_comb1, self.w_comb2)
self.conv = Convolutional_layer(self.vector_size,
self.w_t,
self.w_r,
self.w_l,
self.b_conv,
features_size=self.feature_size)
self.hidden = Hidden_layer(self.w_hidden, self.b_hidden)
class SecondNeuralNetwork():
def __init__(self, n=20, m=4, pooling='one-way pooling'):
self.vector_size = n
self.feature_size = m
# parameters
self.w_comb1 = torch.diag(
torch.randn(self.vector_size,
dtype=torch.float32)).requires_grad_()
self.w_comb2 = torch.diag(
torch.randn(self.vector_size,
dtype=torch.float32)).requires_grad_()
self.w_t = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.w_r = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.w_l = torch.randn(self.feature_size,
self.vector_size,
requires_grad=True)
self.b_conv = torch.randn(self.feature_size, requires_grad=True)
# pooling method
self.pooling = pooling
if self.pooling == 'three-way pooling':
self.w_hidden = torch.randn(3, requires_grad=True)
self.b_hidden = torch.randn(1, requires_grad=True)
self.dynamic = Dynamic_pooling_layer()
self.max_pool = Max_pooling_layer()
else:
self.w_hidden = torch.randn(self.feature_size, requires_grad=True)
self.b_hidden = torch.randn(1, requires_grad=True)
self.pooling = Pooling_layer()
# layers
self.cod = Coding_layer(self.vector_size, self.w_comb1, self.w_comb2)
self.conv = Convolutional_layer(self.vector_size,
self.w_t,
self.w_r,
self.w_l,
self.b_conv,
features_size=self.feature_size)
self.hidden = Hidden_layer(self.w_hidden, self.b_hidden)
def train(self,
targets,
training_dict,
total_epochs=10,
learning_rate=0.1):
"""Create the training loop"""
# Construct the optimizer
params = [
self.w_comb1, self.w_comb2, self.w_t, self.w_l, self.w_r,
self.b_conv, self.w_hidden, self.b_hidden
]
optimizer = torch.optim.SGD(params, lr=learning_rate)
criterion = nn.BCELoss()
print('The correct value of the files is: ', targets)
for epoch in range(total_epochs):
# Time
start = time()
outputs = self.forward(training_dict)
try:
loss = criterion(outputs, targets)
except AttributeError:
print(
f'The size of outputs is {len(outputs)} and is of type {type(outputs)}'
)
print('Check that the path is a folder and not a file')
raise AttributeError
# zero the parameter gradients
print('outputs: \n', outputs)
#print('Matrix w_r_conv: \n', params[4])
optimizer.zero_grad()
# Calculates the derivative
loss.backward(retain_graph=True)
# Update parameters
optimizer.step() #w_r = w_r - lr * w_r.grad
#Time
end = time()
print('Epoch: ', epoch, ', Time: ', end - start, ', Loss: ', loss)
message = f'''
The loss we have for the training network is: {loss}
'''
writer(message)
self.save()
def forward(self, training_dict):
outputs = []
softmax = nn.Sigmoid()
for filepath in training_dict.keys():
data = filepath
## forward (layers calculations)
output = self.layers(training_dict[data])
# output append
if outputs == []:
outputs = softmax(output)
else:
outputs = torch.cat((outputs, softmax(output)), 0)
return outputs
def layers(self, vector_representation_params):
ls_nodes = vector_representation_params[0]
dict_ast_to_Node = vector_representation_params[1]
dict_sibling = vector_representation_params[2]
w_l_code = vector_representation_params[3]
w_r_code = vector_representation_params[4]
b_code = vector_representation_params[5]
ls_nodes = self.cod.coding_layer(ls_nodes, dict_ast_to_Node, w_l_code,
w_r_code, b_code)
ls_nodes = self.conv.convolutional_layer(ls_nodes, dict_ast_to_Node)
if self.pooling == 'three-way pooling':
self.max_pool.max_pooling(ls_nodes)
vector = self.dynamic.three_way_pooling(ls_nodes, dict_sibling)
else:
vector = self.pooling.pooling_layer(ls_nodes)
output = self.hidden.hidden_layer(vector)
return output
def save(self):
'''Save all the trained parameters into a csv file'''
#parameters = pd.DataFrame({'w_comb1': self.w_comb1.detach().numpy(), 'w_comb2': self.w_comb2.detach().numpy(), 'w_t': self.w_t.detach().numpy(), 'w_l': self.w_l.detach().numpy(), 'w_r': self.w_r.detach().numpy(), 'b_conv': self.b_conv.detach().numpy(), 'w_hidden': self.w_hidden.detach().numpy(), 'b_hidden': self.b_hidden.detach().numpy()})
# save w_comb1 into csv file
w_comb1 = self.w_comb1.detach().numpy()
numpy.savetxt("params\\w_comb1.csv", w_comb1, delimiter=",")
# save w_comb2 into csv file
w_comb2 = self.w_comb2.detach().numpy()
numpy.savetxt("params\\w_comb2.csv", w_comb2, delimiter=",")
# save w_t into csv file
w_t = self.w_t.detach().numpy()
numpy.savetxt("params\\w_t.csv", w_t, delimiter=",")
# save w_l into csv file
w_l = self.w_l.detach().numpy()
numpy.savetxt("params\\w_l.csv", w_l, delimiter=",")
# save w_r into csv file
w_r = self.w_r.detach().numpy()
numpy.savetxt("params\\w_r.csv", w_r, delimiter=",")
# save b_conv into csv file
b_conv = self.b_conv.detach().numpy()
numpy.savetxt("params\\b_conv.csv", b_conv, delimiter=",")
# save w_hidden into csv file
w_hidden = self.w_hidden.detach().numpy()
numpy.savetxt("params\\w_hidden.csv", w_hidden, delimiter=",")
# save b_conv into csv file
b_hidden = self.b_hidden.detach().numpy()
numpy.savetxt("params\\b_hidden.csv", b_hidden, delimiter=",")
class Validation_neural_network():
def __init__(self, n=30, m=100, pooling='one-way pooling'):
self.vector_size = n
self.feature_size = m
# parameters
w_comb1 = numpy.genfromtxt("params\\w_comb1.csv", delimiter=",")
self.w_comb1 = torch.tensor(w_comb1, dtype=torch.float32)
w_comb2 = numpy.genfromtxt("params\\w_comb2.csv", delimiter=",")
self.w_comb2 = torch.tensor(w_comb2, dtype=torch.float32)
w_t = numpy.genfromtxt("params\\w_t.csv", delimiter=",")
self.w_t = torch.tensor(w_t, dtype=torch.float32)
w_r = numpy.genfromtxt("params\\w_r.csv", delimiter=",")
self.w_r = torch.tensor(w_r, dtype=torch.float32)
w_l = numpy.genfromtxt("params\\w_l.csv", delimiter=",")
self.w_l = torch.tensor(w_l, dtype=torch.float32)
b_conv = numpy.genfromtxt("params\\b_conv.csv", delimiter=",")
self.b_conv = torch.tensor(b_conv, dtype=torch.float32)
w_hidden = numpy.genfromtxt("params\\w_hidden.csv", delimiter=",")
self.w_hidden = torch.tensor(w_hidden, dtype=torch.float32)
b_hidden = numpy.genfromtxt("params\\b_hidden.csv", delimiter=",")
self.b_hidden = torch.tensor(b_hidden, dtype=torch.float32)
# pooling method
self.pooling = pooling
if self.pooling == 'one-way pooling':
self.pooling_layer = Pooling_layer()
else:
self.dynamic = Dynamic_pooling_layer()
self.max_pool = Max_pooling_layer()
### Layers
self.cod = Coding_layer(self.vector_size, self.w_comb1, self.w_comb2)
self.conv = Convolutional_layer(self.vector_size,
self.w_t,
self.w_r,
self.w_l,
self.b_conv,
features_size=self.feature_size)
self.hidden = Hidden_layer(self.w_hidden, self.b_hidden)
def validation(self,
targets,
validation_dict,
learning_rate=0.3,
momentum=0,
l2_penalty=0,
epoch_first=45):
"""Create the validation loop"""
print('########################################')
print(
'\n\n\nFinished training process. Entering validation process\n\n\n'
)
print("The correct value of the files is: ", targets)
# We calculate the predictions
predicts = self.prediction(validation_dict, learning_rate, momentum,
l2_penalty, epoch_first)
# print the predictions
print('predictions: \n', predicts)
# Loss function
criterion = nn.BCELoss()
loss = criterion(predicts, targets)
# TODO Build the accuracy evaluation method for each file
# Confusion matrix
conf_matrix = self.conf_matrix(predicts, targets)
print(conf_matrix)
plot_confusion_matrix(conf_matrix, ['no generator', 'generator'])
message = f'''
For the validation set we have the following results:
loss: {loss}
confusion_matrix:
{conf_matrix}
'''
writer(message)
print('Loss validation: ', loss)
# correct += (predicted == labels).sum()
accuracy = self.accuracy(predicts, targets)
print('accuracy: ', accuracy)
def prediction(self, validation_dict, learning_rate, momentum, l2_penalty,
epoch_first):
outputs = []
softmax = nn.Sigmoid()
total = len(validation_dict)
i = 1
for filepath in validation_dict:
# first neural network
validation_dict[filepath] = self.first_neural_network(
filepath, learning_rate, momentum, l2_penalty, epoch_first)
print(
f"finished vector representation of file: {filepath} ({i}/{total}) \n"
)
i += 1
## forward (second neural network)
output = self.second_neural_network(validation_dict[filepath])
# output append
if outputs == []:
outputs = torch.tensor([softmax(output)])
else:
outputs = torch.cat((outputs, torch.tensor([softmax(output)])),
0)
return outputs
def first_neural_network(self, file, learning_rate, momentum, l2_penalty,
epoch):
'''Initializing node list, dict list and dict sibling'''
# we parse the data of the file into a tree
tree = file_parser(file)
# convert its nodes into the Node class we have, and assign their attributes
ls_nodes, dict_ast_to_Node = node_object_creator(tree)
ls_nodes = node_position_assign(ls_nodes)
ls_nodes, dict_sibling = node_sibling_assign(ls_nodes)
ls_nodes = leaves_nodes_assign(ls_nodes, dict_ast_to_Node)
# Initializing vector embeddings
embed = Embedding(self.vector_size, ls_nodes, dict_ast_to_Node)
ls_nodes = embed.node_embedding()
# Calculate the vector representation for each node
vector_representation = First_neural_network(ls_nodes,
dict_ast_to_Node,
self.vector_size,
learning_rate, momentum,
l2_penalty, epoch)
ls_nodes, w_l_code, w_r_code, b_code = vector_representation.vector_representation(
)
return [
ls_nodes, dict_ast_to_Node, dict_sibling, w_l_code, w_r_code,
b_code
]
def second_neural_network(self, vector_representation_params):
ls_nodes = vector_representation_params[0]
dict_ast_to_Node = vector_representation_params[1]
dict_sibling = vector_representation_params[2]
w_l_code = vector_representation_params[3]
w_r_code = vector_representation_params[4]
b_code = vector_representation_params[5]
ls_nodes = self.cod.coding_layer(ls_nodes, dict_ast_to_Node, w_l_code,
w_r_code, b_code)
ls_nodes = self.conv.convolutional_layer(ls_nodes, dict_ast_to_Node)
if self.pooling == 'one-way pooling':
vector = self.pooling_layer.pooling_layer(ls_nodes)
else:
self.max_pool.max_pooling(ls_nodes)
vector = self.dynamic.three_way_pooling(ls_nodes, dict_sibling)
output = self.hidden.hidden_layer(vector)
return output
def accuracy(self, predicts, targets):
with torch.no_grad():
rounded_prediction = torch.round(predicts)
# 1 if false negative
# -1 if false positive
difference = targets - rounded_prediction
errors = torch.abs(difference).sum()
accuracy = (len(difference) - errors) / len(difference)
return accuracy
def conf_matrix(self, predicts, targets):
with torch.no_grad():
rounded_prediction = torch.round(predicts)
# 1 if false negative
# -1 if false positive
difference = targets - rounded_prediction
# 0 if true negative
# 2 if true positive
addition = targets + rounded_prediction
conf_matrix = torch.zeros(2, 2, dtype=torch.int64)
# x axis are true values, and y axis are predictions
for i in range(len(addition)):
if difference[i] == 1:
conf_matrix[1, 0] += 1
elif difference[i] == -1:
conf_matrix[0, 1] += 1
elif addition[i] == 0:
conf_matrix[0, 0] += 1
else:
assert addition[i] == 2
conf_matrix[1, 1] += 1
return conf_matrix.numpy()