def run_test():
# create report folder
rep_folder = create_report_folder()
# extract data
X_train, Y_train, X_test, Y_test = get_data()
# select model
model_obj = MLP()
# transform input data
X_train = model_obj.transform_data(X_train)
X_test = model_obj.transform_data(X_test)
# fit model
model = model_obj.get_model()
plot_model(model, to_file=rep_folder + '/model.png', show_shapes=True)
start_time = time.time()
history = model.fit(X_train, Y_train, epochs=100, batch_size=8)
train_time = time.time() - start_time
print("--- %s seconds for training ---" % (train_time))
# make predictions
y_predicted = model.predict(X_test)
# report performance
perf_rep = report_performance(Y_test, y_predicted)
plot_predictions(Y_test, y_predicted, rep_folder)
# store reports in file
write_summary(rep_folder, perf_rep, train_time)
# store model
store_model(rep_folder, model)
return rep_folder + " " + perf_rep
def make_template():
"""集成模板数据
将模板文件中的四个配置项整合到一个字典对象中
{
'configs': configs,
'datum': datum,
'formulas': formulas,
'maps': maps
}
Returns:
Dictionary: 集成的模板数据
"""
try:
wb = get_template()
configs = get_configs(wb)
datum = get_data(wb)
formulas = get_formulas(wb)
maps = get_maps(wb)
finally:
wb.close()
return {
GL.GL_TEMPLATE_KEY_CONFIGS_NAME: configs,
GL.GL_TEMPLATE_KEY_DATUM_NAME: datum,
GL.GL_TEMPLATE_KEY_FORMULAS_NAME: formulas,
GL.GL_TEMPLATE_KEY_MAPS_NAME: maps
}
def train(n_samples, data_type, generator, discriminator, gen_optimizer,
dis_optimizer, loss_fun):
generator.train()
discriminator.train()
dis_optimizer.zero_grad()
gen_optimizer.zero_grad()
# Train discriminator on real
real_ex = get_data(n_points=n_samples, data_type=data_type)
real_ex = torch.tensor(real_ex, dtype=torch.float)
dis_real = discriminator(real_ex)
dis_loss_real = loss_fun(dis_real, torch.ones(n_samples, dtype=torch.long))
dis_loss_real.backward()
# Train discriminator on fake
noise = torch.rand(n_samples, NOISE_DIM)
gen_out = generator(noise)
dis_gen = discriminator(gen_out.detach())
dis_loss_gen = loss_fun(dis_gen, torch.zeros(n_samples, dtype=torch.long))
dis_loss_gen.backward()
#print("Discriminator loss : {}".format(dis_loss_gen.item() + dis_loss_real.item()))
dis_optimizer.step()
# Train generator
dis_gen = discriminator(gen_out)
loss_gen = loss_fun(dis_gen, torch.ones(n_samples, dtype=torch.long))
loss_gen.backward()
#print("Generator loss : {}".format(loss_gen.item()))
gen_optimizer.step()
return dis_loss_gen.item() + dis_loss_real.item(), loss_gen.item()
def create_data_splits(sids, n_train=1, n_val=1, n_test=1):
n_total = n_train + n_val + n_test
assert n_total <= len(sids)
n_sids = len(sids)
SID_SUBSET = np.random.choice(sids, size=n_total, replace=False)
train = generate_data.get_data(
SID_SUBSET[:n_train],
datadir=DATADIR,
salamidir=SALAMIDIR,
outputdir=OUTPUTDIR,
prefix='train')
val = generate_data.get_data(
SID_SUBSET[n_train:n_train+n_val],
datadir=DATADIR,
salamidir=SALAMIDIR,
outputdir=OUTPUTDIR,
prefix='val'
)
test = generate_data.get_data(
SID_SUBSET[n_train+n_val:],
datadir=DATADIR,
salamidir=SALAMIDIR,
outputdir=OUTPUTDIR,
prefix='test'
)
splits_dict = {'train': [], 'val': [], 'test': [],}
for item_train in train.keys():
for i in range(train[item_train]['X_shape'][0]):
splits_dict['train'].append((train[item_train]['X_path'], train[item_train]['X_shape'], train[item_train]['y_path'], train[item_train]['y_shape'], i))
for item_val in val.keys():
for i in range(val[item_val]['X_shape'][0]):
splits_dict['val'].append((val[item_val]['X_path'], val[item_val]['X_shape'], val[item_val]['y_path'], val[item_val]['y_shape'], i))
for item_test in test.keys():
for i in range(test[item_test]['X_shape'][0]):
splits_dict['test'].append((test[item_test]['X_path'], test[item_test]['X_shape'], test[item_test]['y_path'], test[item_test]['y_shape'], i))
return splits_dict
def repeat_experiment(source_file: str,
dest_file: str,
reps=5,
max_rep=1000,
est_alpha="no",
alpha=0.5):
theta_a_lst = []
theta_b_lst = []
alphas_est = []
counters = []
true_theta_a, true_theta_b = get_thetas(source_file)
for i in range(reps):
X = get_data(source_file)["X"].astype(int)
theta_a, theta_b, est_alpha, counter = init_em(X,
max_rep,
est_alpha=est_alpha,
alpha=alpha)
theta_a_lst.append(theta_a)
theta_b_lst.append(theta_b)
alphas_est.append(est_alpha)
counters.append(counter)
theta_a_est = reduce(lambda x, y: x + y, theta_a_lst) / len(theta_a_lst)
theta_b_est = reduce(lambda x, y: x + y, theta_b_lst) / len(theta_b_lst)
alpha_est = reduce(lambda x, y: x + y, alphas_est) / len(alphas_est)
res_dict = {
"theta_a_est": theta_a_est.tolist(),
"theta_b_est": theta_b_est.tolist(),
"theta_a": true_theta_a.tolist(),
"theta_b": true_theta_b.tolist(),
"alpha": alpha_est,
"counters": counters
}
with open(dest_file, 'w') as outfile:
json.dump(res_dict, outfile)
print('Source: {0}'.format(source_file))
print('Destination: {0}'.format(dest_file))
def train(data_type):
global last_loss, patience, disc_steps, gen_steps
real_labels = torch.ones((batch_size), dtype=torch.float)
fake_labels = torch.zeros((batch_size), dtype=torch.float)
for epoch in range(epochs):
# ----- Train D ----- #
for step in range(disc_steps):
d_optim.zero_grad()
noise_samples = FloatTensor(sample_z(batch_size))
# get_data is already defined such that examples are already chosen from iid
real_samples = FloatTensor(d_gen.get_data(batch_size, data_type))
real_samp_decision = discriminator(real_samples)
d_loss_real_samp = criterion(real_samp_decision.t(), real_labels)
d_loss_real_samp.backward()
gen_out = generator(noise_samples).detach()
fake_samp_decision = discriminator(gen_out)
d_loss_fake_samp = criterion(fake_samp_decision.t(), fake_labels)
d_loss_fake_samp.backward()
d_optim.step()
# ----- Train G ----- #
for step in range(gen_steps):
g_optim.zero_grad()
noise_samples = FloatTensor(sample_z(batch_size))
gen_out = generator(noise_samples)
fake_samp_decision = discriminator(gen_out)
g_loss = criterion(fake_samp_decision.t(), real_labels)
g_loss.backward()
g_optim.step()
if curr_dt == 2 and epoch == 1000:
disc_steps -= 5
gen_steps += 5
d_err_avg = (d_loss_fake_samp.item() + d_loss_real_samp.item()) / 2
print("Epoch %s, D loss real:%f, fake:%f, avg_err:%f , G %f err" %
(epoch, d_loss_real_samp.item(), d_loss_fake_samp, d_err_avg,
g_loss.item()))
if epoch > 1000 and epoch % 1000 == 0:
test_spiral(epoch, d_err_avg, g_loss)
return d_err_avg, g_loss
def init_data(self):
train_dict, valid_dict, test_dict = generate_data.get_data()
sequence_list = []
f1 = open("train_list_item.txt", "w")
f2 = open("train_list_features.txt", "w")
f7 = open("train_list_location.txt", "w")
for key in train_dict.keys():
num_total_sequences = len(train_dict[key][0])
for i in range(num_total_sequences):
sequence_length = len(train_dict[key][0][i])
sequence_list.append(sequence_length)
f1_row = str(key) + ' '
f2_row = ''
f7_row = ''
for j in range(sequence_length):
f1_row += str(train_dict[key][1][i][j]) + ' '
f2_row += str(train_dict[key][8][i][j])+',' + str(train_dict[key][3][i][j]) +',' + \
str(train_dict[key][4][i][j]) +',' + str(train_dict[key][5][i][j]) + ' '
f7_row = str(train_dict[key][6][i][sequence_length - 1])
f1_row += '\n'
f2_row += '\n'
f7_row += '\n'
f1.write(f1_row)
f2.write(f2_row)
f7.write(f7_row)
f1.close()
f2.close()
f7.close()
sequence_list = []
f3 = open("valid_list_item.txt", "w")
f4 = open("valid_list_features.txt", "w")
f8 = open("valid_list_location.txt", "w")
for key in valid_dict.keys():
num_total_sequences = len(valid_dict[key][0])
for i in range(num_total_sequences):
sequence_length = len(valid_dict[key][0][i])
sequence_list.append(sequence_length)
f3_row = str(key) + ' '
f4_row = ''
f8_row = ''
for j in range(sequence_length):
f3_row += str(valid_dict[key][1][i][j]) + ' '
f4_row += str(valid_dict[key][8][i][j])+',' + str(valid_dict[key][3][i][j]) +',' + \
str(valid_dict[key][4][i][j]) +',' + str(valid_dict[key][5][i][j]) + ' '
f8_row = str(valid_dict[key][6][i][sequence_length - 1])
f3_row += '\n'
f4_row += '\n'
f8_row += '\n'
f3.write(f3_row)
f4.write(f4_row)
f8.write(f8_row)
f3.close()
f4.close()
f8.close()
sequence_list = []
f5 = open("test_list_item.txt", "w")
f6 = open("test_list_features.txt", "w")
f9 = open("test_list_location.txt", "w")
for key in test_dict.keys():
num_total_sequences = len(test_dict[key][0])
for i in range(num_total_sequences):
sequence_length = len(test_dict[key][0][i])
sequence_list.append(sequence_length)
f5_row = str(key) + ' '
f6_row = ''
f9_row = ''
for j in range(sequence_length):
f5_row += str(test_dict[key][1][i][j]) + ' '
f6_row += str(test_dict[key][8][i][j])+',' + str(test_dict[key][3][i][j]) +',' + \
str(test_dict[key][4][i][j]) +',' + str(test_dict[key][5][i][j]) + ' '
f9_row = str(test_dict[key][6][i][sequence_length - 1])
f5_row += '\n'
f6_row += '\n'
f9_row += '\n'
f5.write(f5_row)
f6.write(f6_row)
f9.write(f9_row)
f5.close()
f6.close()
f9.close()
train_list_item = []
f = open("train_list_item.txt", "r")
for x in f:
train_list_item.append(x)
f.close()
train_list_features = []
f = open("train_list_features.txt", "r")
for x in f:
train_list_features.append(x)
f.close()
train_list_location = []
f = open("train_list_location.txt", "r")
for x in f:
train_list_location.append(x)
f.close()
valid_list_item = []
f = open("valid_list_item.txt", "r")
for x in f:
valid_list_item.append(x)
f.close()
valid_list_features = []
f = open("valid_list_features.txt", "r")
for x in f:
valid_list_features.append(x)
f.close()
valid_list_location = []
f = open("valid_list_location.txt", "r")
for x in f:
valid_list_location.append(x)
f.close()
test_list_item = []
f = open("test_list_item.txt", "r")
for x in f:
test_list_item.append(x)
f.close()
test_list_features = []
f = open("test_list_features.txt", "r")
for x in f:
test_list_features.append(x)
f.close()
test_list_location = []
f = open("test_list_location.txt", "r")
for x in f:
test_list_location.append(x)
f.close()
self.train_list_item = train_list_item
self.train_list_features = train_list_features
self.train_list_location = train_list_location
self.valid_list_item = valid_list_item
self.valid_list_features = valid_list_features
self.valid_list_location = valid_list_location
self.test_list_item = test_list_item
self.test_list_features = test_list_features
self.test_list_location = test_list_location
def init_basic(self):
train_dict, valid_dict, test_dict = generate_data.get_data()
df = pd.read_csv("new_transE_3.csv")
self.user_length = df['User_id'].max() + 1
# print (self.user_length)
self.item_length = df['Item_id'].max() + 1
self.entity_count_list = []
self.entity_count_list.append(self.user_length)
self.entity_count_list.append(self.item_length)
time_length = df['new_time'].max() + 1
category_length = df['L2_Category_name'].max() + 1
cluster_length = df['clusters'].max() + 1
poi_type_length = df['POI_Type'].max() + 1
self.type_count = poi_type_length
self.relation_count_list = []
self.relation_count_list.append(time_length)
self.relation_count_list.append(category_length)
self.relation_count_list.append(cluster_length)
self.relation_count_list.append(poi_type_length)
self.vector_length = 50
self.margin = 1.0
self.device = torch.device('cuda')
self.norm = 1
self.learning_rate = 0.01
df3 = pd.read_csv("dict.csv")
user_list = df[['User_id']].values.tolist()
self.user_list = get_unique_column_values(user_list)
busi_list = df[['Item_id']].values.tolist()
self.busi_list = get_unique_column_values(busi_list)
with open('L2.json', 'r') as f:
self.taxo_dict = json.load(f)
with open('poi.json', 'r') as f:
self.poi_dict = json.load(f)
df3 = pd.read_csv("dict.csv")
item_dict = dict()
star_list = []
for index, row in df3.iterrows():
if str(int(row['Item_id'])) not in item_dict:
star_list.clear()
row_dict = dict()
star_list.append(row['stars'])
row_dict['stars'] = row['stars']
row_dict['clusters'] = int(row['clusters'])
row_dict['L2_Category_name'] = [int(row['L2_Category_name'])]
row_dict['POI_Type'] = int(row['POI_Type'])
row_dict['feature_index'] = [int(row['L2_Category_name'])]
row_dict['feature_index'].append(
int(row['clusters']) + category_length)
row_dict['feature_index'].append(
int(row['POI_Type']) + category_length + cluster_length)
row_dict['feature_index'].append(2 * int(row['stars']) - 2 +
category_length +
cluster_length +
poi_type_length)
item_dict[str(int(row['Item_id']))] = row_dict
else:
star_list.append(row['stars'])
item_dict[str(int(row['Item_id']))]['stars'] = (
sum(star_list)) / len(star_list)
item_dict[str(int(row['Item_id']))]['L2_Category_name'].append(
int(row['L2_Category_name']))
item_dict[str(int(row['Item_id']))]['feature_index'].append(
int(row['L2_Category_name']))
self.item_dict = item_dict
def main(num_epochs=1,
n_songs_train=1,
n_songs_val=1,
n_songs_test=1,
batch_size=256,
learning_rate=1e-4):
"""
Main function
"""
# Theano config
theano.config.floatX = 'float32'
train, val, test = None, None, None
try:
train, val, test = use_preparsed_data(outputdir='/zap/tsob/audio/', )
except:
train, val, test = get_data(n_songs_train=n_songs_train,
n_songs_val=n_songs_val,
n_songs_test=n_songs_test,
outputdir='/zap/tsob/audio/',
seed=None)
# Save the returned metadata
np.savez('/zap/tsob/audio/metadata', train, val, test)
# Print the dimensions
print "Data dimensions:"
for datapt in [
train['Xshape'], train['yshape'], val['Xshape'], val['yshape'],
test['Xshape'], test['yshape']
]:
print datapt
# Parse dimensions
n_train = train['yshape'][0]
n_val = val['yshape'][0]
n_test = test['yshape'][0]
n_chan = train['Xshape'][1]
n_feats = train['Xshape'][2]
n_frames = train['Xshape'][3]
print "n_train = {0}".format(n_train)
print "n_val = {0}".format(n_val)
print "n_test = {0}".format(n_test)
print "n_chan = {0}".format(n_chan)
print "n_feats = {0}".format(n_feats)
print "n_frames = {0}".format(n_frames)
# Prepare Theano variables for inputs and targets
input_var = T.tensor4(name='inputs')
target_var = T.fcol(name='targets')
# Create neural network model (depending on first command line parameter)
print("Building model and compiling functions..."),
network = build_cnn(input_var)
print("Done.")
# Create a loss expression for training, i.e., a scalar objective we want to minimize
prediction = lasagne.layers.get_output(network)
loss = lasagne.objectives.binary_hinge_loss(prediction, target_var)
loss = loss.mean()
# Create update expressions for training
# Here, we'll use adam
params = lasagne.layers.get_all_params(network, trainable=True)
updates = lasagne.updates.adam(loss,
params,
learning_rate=learning_rate,
beta1=0.95,
beta2=0.999,
epsilon=1e-08)
# Create a loss expression for validation/testing.
# The crucial difference here is that we do a deterministic forward pass
# through the network, disabling dropout layers.
test_prediction = lasagne.layers.get_output(network, deterministic=True)
test_loss = lasagne.objectives.binary_hinge_loss(test_prediction,
target_var)
test_loss = test_loss.mean()
test_pred_fn = theano.function([input_var],
test_prediction,
allow_input_downcast=True)
# As a bonus, also create an expression for the classification accuracy:
test_acc = T.mean(T.eq(T.argmax(test_prediction, axis=1), target_var),
dtype=theano.config.floatX)
# Compile a function performing a training step on a mini-batch (by giving
# the updates dictionary) and returning the corresponding training loss:
train_fn = theano.function(
[input_var, target_var],
loss,
updates=updates,
mode=NanGuardMode( #TODO remove
nan_is_error=True,
inf_is_error=True,
big_is_error=True #TODO remove
), #TODO remove
allow_input_downcast=True)
# Compile a second function computing the validation loss and accuracy:
val_fn = theano.function([input_var, target_var], [test_loss, test_acc],
allow_input_downcast=True)
# Finally, launch the training loop.
print("Starting training...")
train_error_hist = []
# We iterate over epochs:
for epoch in range(num_epochs):
# In each epoch, we do a full pass over the training data:
train_err = 0
train_batches = 0
start_time = time.time()
for batch in iterate_minibatches(train, batch_size, shuffle=True):
inputs, targets = batch
train_err_increment = train_fn(inputs, targets)
train_err += train_err_increment
train_error_hist.append(train_err_increment)
train_batches += 1
# And a full pass over the validation data:
val_err = 0
val_acc = 0
val_batches = 0
for batch in iterate_minibatches(val, batch_size, shuffle=False):
inputs, targets = batch
err, acc = val_fn(inputs, targets)
val_err += err
val_acc += acc
val_batches += 1
# Then we print the results for this epoch:
print("Epoch {} of {} took {:.3f}s".format(epoch + 1, num_epochs,
time.time() - start_time))
print(" training loss:\t\t{:.8f}".format(train_err / train_batches))
print(" validation loss:\t\t{:.8f}".format(val_err / val_batches))
print(" validation accuracy:\t\t{:.2f} %".format(val_acc /
val_batches * 100))
print("Done training.")
# After training, we compute and print the test error:
test_err = 0
test_acc = 0
test_batches = 0
test_predictions = []
for batch in iterate_minibatches(test, batch_size, shuffle=False):
inputs, targets = batch
err, acc = val_fn(inputs, targets)
test_predictions.append(test_pred_fn(inputs))
test_err += err
test_acc += acc
test_batches += 1
print("Final results:")
print(" test loss:\t\t\t{:.6f}".format(test_err / test_batches))
print(" test accuracy:\t\t{:.2f} %".format(test_acc / test_batches * 100))
# Optionally, you could now dump the network weights to a file like this:
timestr = str(time.time())
np.savez('/zap/tsob/audio/model' + timestr + '.npz',
*lasagne.layers.get_all_param_values(network))
np.save('/zap/tsob/audio/train_error_hist' + timestr + '.npy',
train_error_hist)
np.save('/zap/tsob/audio/test_predictions' + timestr + '.npy',
test_predictions)
print "Wrote model to {0}, test error histogram to {1}, and test predictions to {2}".format(
'model' + timestr + '.npz', 'train_error_hist' + timestr + '.npy',
'test_predictions' + timestr + '.npy')
from keras.callbacks import ModelCheckpoint
import tensorflow as tf
import keras.backend.tensorflow_backend as tfback
from sklearn.model_selection import train_test_split
import generate_data
save_name = 'simplecnn_009'
people = [
'Tim', 'Dan', 'Malachi', 'Grant', 'Jess', 'Lindsey', 'Sydney', 'Kate'
]
X, y = generate_data.get_data(people=people)
pickle.dump(people, open('fitted_models/' + 'ids_' + save_name + '.sav', 'wb'))
X = X / 255
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.15)
checkpoint_loss = ModelCheckpoint(filepath='fitted_models/' + save_name +
'_minloss',
save_weights_only=True,
monitor='val_loss',
mode='min',
verbose=1,
save_best_only=True)
def test_get_data(mocker, make_wb_and_ws):
mock_function = mocker.patch('generate_data.make_dict_repeatable')
wb, _ = make_wb_and_ws(GL.GL_EXECEL_SHEET_DATA_NAME)
get_data(wb)
mock_function.assert_called_once_with(wb, GL.GL_EXECEL_SHEET_DATA_NAME)
from prompt_toolkit import prompt
from prompt_toolkit.completion import WordCompleter
from generate_data import get_data
if __name__ == "__main__":
periodList = WordCompleter([
"1d", "5d", "1mo", "3mo", "6mo", "1y", "2y", "5y", "10y", "ytd", "max"
])
intervalList = WordCompleter([
"1m",
"2m",
"5m",
"15m",
"30m",
"60m",
"90m",
"1h",
"1d",
"5d",
"1wk",
"1mo",
"3mo",
])
symbol = prompt("Ticker name: ", default="AAPL")
period = prompt("Period? ", completer=periodList, default="1mo")
interval = prompt("Interval? ", completer=intervalList, default="5m")
file_name = prompt("FileName? ", default="data.csv")
get_data(symbol, period, interval, file_name)
def train():
trainset = get_data('train')
testset = get_data('dev')
global_step = tf.train.get_or_create_global_step()
steps_per_period = len(trainset)
warmup_steps = tf.constant(cfg.BASE.warmup_periods * steps_per_period,
dtype=tf.float32,
name='warmup_steps')
train_steps = tf.constant(cfg.BASE.epochs * steps_per_period,
dtype=tf.float32,
name='train_steps')
warmup_lr = tf.to_float(global_step) / tf.to_float(warmup_steps) \
* cfg.BASE.lr
decay_lr = tf.train.cosine_decay(cfg.BASE.lr,
global_step=tf.to_float(global_step) -
warmup_steps,
decay_steps=train_steps - warmup_steps,
alpha=0.01)
learn_rate = tf.where(
tf.to_float(global_step) < warmup_steps, warmup_lr, decay_lr)
optimizer = tf.train.AdamOptimizer(learn_rate)
iterator = tf.data.Iterator.from_structure(
trainset.dataset.output_types,
trainset.dataset.output_shapes,
output_classes=trainset.dataset.output_classes)
train_init_op = iterator.make_initializer(trainset.dataset)
test_init_op = iterator.make_initializer(testset.dataset)
trainable = tf.placeholder(dtype=tf.bool, name='training')
dropout_rate_position = tf.placeholder(tf.float32,
shape=(),
name='drop_out')
gradients, loss, att, ctc, acc = get_tower_results(iterator, optimizer,
dropout_rate_position,
trainable)
avg_tower_gradients = average_gradients(gradients)
grads, all_vars = zip(*avg_tower_gradients)
clipped, gnorm = tf.clip_by_global_norm(grads, 0.25)
grads_and_vars = list(zip(clipped, all_vars))
apply_gradient_op = optimizer.apply_gradients(grads_and_vars,
global_step=global_step)
with tf.Session(config=tf.ConfigProto(allow_soft_placement=True)) as sess:
loader = tf.train.Saver(tf.global_variables())
saver = tf.train.Saver(tf.global_variables(), max_to_keep=5)
sess.run(tf.global_variables_initializer())
try:
print('=> Restoring weights from: %s ... ' %
cfg.BASE.initial_weight)
loader.restore(sess, cfg.BASE.initial_weight)
except:
print('=> %s does not exist !!!' % cfg.BASE.initial_weight)
print('=> Now it starts to train LM from scratch ...')
for epoch in range(1, 1 + cfg.BASE.epochs):
#初始化数据集
sess.run(train_init_op)
train_epoch_loss, test_epoch_loss = [], []
train_epoch_acc, test_epoch_acc = [], []
train_epoch_ctc, test_epoch_ctc = [], []
train_epoch_att, test_epoch_att = [], []
pbar = tqdm(range(len(trainset) + 1))
for i in pbar:
try:
_, train_step_loss,train_step_acc,train_step_ctc,train_step_att, \
global_step_val = sess.run(
[apply_gradient_op, loss,acc,ctc,att,
global_step],feed_dict={
trainable: True,
dropout_rate_position:0.1
})
train_epoch_loss.append(train_step_loss)
train_epoch_acc.append(train_step_acc)
train_epoch_ctc.append(train_step_ctc)
train_epoch_att.append(train_step_att)
pbar.set_description("loss:%.2f" % train_step_loss)
pbar.set_postfix(acc=train_step_acc)
except tf.errors.OutOfRangeError:
break
sess.run(test_init_op)
while True:
try:
test_step_loss, test_step_acc, test_step_ctc, test_step_att = sess.run(
[loss, acc, ctc, att],
feed_dict={
trainable: False,
dropout_rate_position: 0.0
})
test_epoch_loss.append(test_step_loss)
test_epoch_acc.append(test_step_acc)
test_epoch_ctc.append(test_step_ctc)
test_epoch_att.append(test_step_att)
except tf.errors.OutOfRangeError:
break
train_epoch_loss, test_epoch_loss = np.mean(
train_epoch_loss), np.mean(test_epoch_loss)
train_epoch_ctc, test_epoch_ctc = np.mean(
train_epoch_ctc), np.mean(test_epoch_ctc)
train_epoch_att, test_epoch_att = np.mean(
train_epoch_att), np.mean(test_epoch_att)
train_epoch_acc, test_epoch_acc = np.mean(
train_epoch_acc), np.mean(test_epoch_acc)
ckpt_file = "./logs_lm_tf/lm_train_loss=%.4f.ckpt" % train_epoch_loss
log_time = time.strftime('%Y-%m-%d %H:%M:%S',
time.localtime(time.time()))
print(
"=> Epoch: %2d Time: %s Tr_loss: %.2f Tr_acc: %.2f Te_acc: %.2f "
" tr_ctc: %.2f tr_att: %.2f " %
(epoch, log_time, train_epoch_loss, train_epoch_acc,
test_epoch_acc, train_epoch_ctc, train_epoch_att))
saver.save(sess, ckpt_file, global_step=epoch)
res_dict = {
"theta_a_est": theta_a_est.tolist(),
"theta_b_est": theta_b_est.tolist(),
"theta_a": true_theta_a.tolist(),
"theta_b": true_theta_b.tolist(),
"alpha": alpha_est,
"counters": counters
}
with open(dest_file, 'w') as outfile:
json.dump(res_dict, outfile)
print('Source: {0}'.format(source_file))
print('Destination: {0}'.format(dest_file))
def read_results(source_file: str):
with open(source_file, 'r') as input_file:
params = json.load(input_file)
return {k: (np.array(v) if "theta" in k else v) for k, v in params.items()}
if __name__ == "__main__":
X = get_data(params_file_path)["X"].astype(int)
single_run(X, verbose=True)
# theta_1, theta_2, alpha = single_run(X, verbose=True)
#dest_file = os.path.join(os.getcwd(), 'saved_simulations', 'test.json')
#repeat_experiment(params_file_path, dest_file)
#read_results(dest_file)
from typing import Dict, Tuple
import transE_model as model_definition
import torch
import torch.nn as nn
import torch.optim as optim
import dataset as ds
import numpy as np
import pickle
import pandas as pd
import random
import json
from torch.utils import data as torch_data
import generate_data
import inside_category
train_dict, valid_dict, test_dict = generate_data.get_data()
df = pd.read_csv("../data/new_transE_3.csv")
user_length = df['User_id'].max() + 1
item_length = df['Item_id'].max() + 1
time_length = df['new_time'].max() + 1
category_length = df['L2_Category_name'].max() + 1
cluster_length = df['clusters'].max() + 1
poi_type_length = df['POI_Type'].max() + 1
relation_count_list = []
relation_count_list.append(time_length)
relation_count_list.append(category_length)
relation_count_list.append(cluster_length)
relation_count_list.append(poi_type_length)
def train(gen, dis, original_model, num_epochs, dis_updates, gen_updates):
batch_size = 100
loss_fn = nn.BCELoss()
gen_optimizer = optim.Adam(gen.parameters(), lr = 0.0002)
dis_optimizer = optim.Adam(dis.parameters(), lr = 0.0002)
l = int(num_epochs / batch_size)
epochs = trange(l, desc="Training...")
for t in epochs:
if t % 1000 == 0 and t > 0:
generate_fake_samples(gen, original_model)
for i in range(dis_updates):
# Discriminator: x~Data, z~noise Maximize log-likelihood:
# maximize D | log(D(x)) + log(1 - D(G(z)))
dis.zero_grad()
samples = get_latent_samples(batch_size)
fake_data = gen(samples).detach()
real_data = torch.from_numpy(get_data(batch_size)).float().type(dtype)
true_label = torch.ones(batch_size)
# train discriminator on real data
real_output = dis(real_data)
dis_real_loss = loss_fn(real_output.view(-1), true_label)
dis_real_loss.backward() # back-prop
# train discriminator on fake data
fake_label = torch.zeros(batch_size)
fake_output = dis(fake_data)
dis_fake_loss = loss_fn(fake_output.view(-1), fake_label)
dis_fake_loss.backward()
# Update weights
dis_optimizer.step()
# Generator: z~noise, make discriminator accept generator output:
# Maximize log likelihood of generated data according to discriminator
# maximize G | log(D(G(z))
for i in range(gen_updates):
gen.zero_grad()
# another forward pass on D
samples = get_latent_samples(batch_size)
fake_data = gen(samples)
fake_output_for_gen = dis(fake_data)
# we maximize log(D(G(z)) by using the true label
true_label = torch.ones(batch_size)
gen_loss = loss_fn(fake_output_for_gen.view(-1), true_label)
gen_loss.backward()
# Update weights
gen_optimizer.step()
if t % 10 == 0:
monitor_string = monitor(
real_output,
fake_output,
fake_output_for_gen,
dis_fake_loss,
dis_real_loss,
gen_loss)
epochs.set_postfix_str(monitor_string)
return
def main(
num_epochs=1,
n_songs_train=1,
n_songs_val=1,
n_songs_test=1,
batch_size=256,
learning_rate=1e-4
):
"""
Main function
"""
# Theano config
theano.config.floatX = 'float32'
train, val, test = None, None, None
try:
train, val, test = use_preparsed_data(
outputdir='/zap/tsob/audio/',
)
except:
train, val, test = get_data(
n_songs_train=n_songs_train,
n_songs_val=n_songs_val,
n_songs_test=n_songs_test,
outputdir='/zap/tsob/audio/',
seed=None
)
# Save the returned metadata
np.savez('/zap/tsob/audio/metadata', train, val, test)
# Print the dimensions
print "Data dimensions:"
for datapt in [train['Xshape'], train['yshape'],
val['Xshape'], val['yshape'],
test['Xshape'], test['yshape']]:
print datapt
# Parse dimensions
n_train = train['yshape'][0]
n_val = val['yshape'][0]
n_test = test['yshape'][0]
n_chan = train['Xshape'][1]
n_feats = train['Xshape'][2]
n_frames = train['Xshape'][3]
print "n_train = {0}".format(n_train)
print "n_val = {0}".format(n_val)
print "n_test = {0}".format(n_test)
print "n_chan = {0}".format(n_chan)
print "n_feats = {0}".format(n_feats)
print "n_frames = {0}".format(n_frames)
# Prepare Theano variables for inputs and targets
input_var = T.tensor4(name='inputs')
target_var = T.fcol(name='targets')
# Create neural network model (depending on first command line parameter)
print("Building model and compiling functions..."),
network = build_cnn(input_var)
print("Done.")
# Create a loss expression for training, i.e., a scalar objective we want to minimize
prediction = lasagne.layers.get_output(network)
loss = lasagne.objectives.binary_hinge_loss(prediction, target_var)
loss = loss.mean()
# Create update expressions for training
# Here, we'll use adam
params = lasagne.layers.get_all_params(
network,
trainable=True
)
updates = lasagne.updates.adam(
loss,
params,
learning_rate=learning_rate,
beta1=0.95,
beta2=0.999,
epsilon=1e-08
)
# Create a loss expression for validation/testing.
# The crucial difference here is that we do a deterministic forward pass
# through the network, disabling dropout layers.
test_prediction = lasagne.layers.get_output(network, deterministic=True)
test_loss = lasagne.objectives.binary_hinge_loss(
test_prediction,
target_var
)
test_loss = test_loss.mean()
test_pred_fn = theano.function(
[input_var],
test_prediction,
allow_input_downcast=True
)
# As a bonus, also create an expression for the classification accuracy:
test_acc = T.mean(T.eq(T.argmax(test_prediction, axis=1), target_var),
dtype=theano.config.floatX)
# Compile a function performing a training step on a mini-batch (by giving
# the updates dictionary) and returning the corresponding training loss:
train_fn = theano.function(
[input_var, target_var],
loss,
updates=updates,
mode=NanGuardMode( #TODO remove
nan_is_error=True, inf_is_error=True, big_is_error=True #TODO remove
), #TODO remove
allow_input_downcast=True
)
# Compile a second function computing the validation loss and accuracy:
val_fn = theano.function(
[input_var, target_var],
[test_loss, test_acc],
allow_input_downcast=True
)
# Finally, launch the training loop.
print("Starting training...")
train_error_hist = []
# We iterate over epochs:
for epoch in range(num_epochs):
# In each epoch, we do a full pass over the training data:
train_err = 0
train_batches = 0
start_time = time.time()
for batch in iterate_minibatches(
train, batch_size, shuffle=True
):
inputs, targets = batch
train_err_increment = train_fn(inputs, targets)
train_err += train_err_increment
train_error_hist.append(train_err_increment)
train_batches += 1
# And a full pass over the validation data:
val_err = 0
val_acc = 0
val_batches = 0
for batch in iterate_minibatches(val, batch_size, shuffle=False):
inputs, targets = batch
err, acc = val_fn(inputs, targets)
val_err += err
val_acc += acc
val_batches += 1
# Then we print the results for this epoch:
print("Epoch {} of {} took {:.3f}s".format(
epoch + 1, num_epochs, time.time() - start_time))
print(" training loss:\t\t{:.8f}".format(train_err / train_batches))
print(" validation loss:\t\t{:.8f}".format(val_err / val_batches))
print(" validation accuracy:\t\t{:.2f} %".format(
val_acc / val_batches * 100))
print("Done training.")
# After training, we compute and print the test error:
test_err = 0
test_acc = 0
test_batches = 0
test_predictions = []
for batch in iterate_minibatches(test, batch_size, shuffle=False):
inputs, targets = batch
err, acc = val_fn(inputs, targets)
test_predictions.append( test_pred_fn(inputs) )
test_err += err
test_acc += acc
test_batches += 1
print("Final results:")
print(" test loss:\t\t\t{:.6f}".format(test_err / test_batches))
print(" test accuracy:\t\t{:.2f} %".format(
test_acc / test_batches * 100))
# Optionally, you could now dump the network weights to a file like this:
timestr = str(time.time())
np.savez('/zap/tsob/audio/model'+timestr+'.npz', *lasagne.layers.get_all_param_values(network))
np.save('/zap/tsob/audio/train_error_hist'+timestr+'.npy', train_error_hist)
np.save('/zap/tsob/audio/test_predictions'+timestr+'.npy', test_predictions)
print "Wrote model to {0}, test error histogram to {1}, and test predictions to {2}".format(
'model'+timestr+'.npz',
'train_error_hist'+timestr+'.npy',
'test_predictions'+timestr+'.npy'
)
# Setup Adam optimizers for both G and D
optimizerD = optim.Adam(netD.parameters(), lr=lr_d, betas=(beta_g, 0.999))
optimizerG = optim.Adam(netG.parameters(), lr=lr_g, betas=(beta_d, 0.999))
# Lists to keep track of progress
iters = 0
print("Starting Training Loop...")
# For each epoch
for epoch in range(num_epochs):
# get random permutation of the noise and the true data
dis_loss = gen_loss = D_x = D_G_z1 = D_G_z2 = g_grads_norm = d_grads_norm = 0
# generate data
real_data = torch.from_numpy(gd.get_data(
batch_size, target_dist)).float().to(device) # read data
# (1) Update D network: maximizing log(D(x)) + log(1 - D(G(z)))
# An equivalent method is to minimize -(y_t*log(D(x) + (1 - y_t)*log(1 - D(G(z))))) with gradient descent
# accumulate errors from genuine and fake examples in the batch and make the update step
netD.train()
netD.zero_grad()
# run true examples through the network
label = torch.full((batch_size, ), real_label, device=device) # set labels
output = netD(real_data).view(-1) # get network output
errD_real = criterion(output, label) # calc. average BCE error
errD_real.backward() # calc gradients for discriminator
D_x += output.sum().item() # average value given to true distribution