def load(args, checkpoint_dir):
state_dict = torch.load(os.path.join(checkpoint_dir, 'checkpoint.pth'))
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
if 'module' in k:
namekey = k[7:] # remove `module.`
else:
namekey = k
new_state_dict[namekey] = v
if args.model_type == 'bert':
config = BertConfig.from_json_file(os.path.join(checkpoint_dir, 'config.bin'))
model = BertForSequenceClassification(config)
model.load_state_dict(new_state_dict)
elif args.model_type == 'cnn':
model = CNNModel(n_vocab=args.vocab_size, embed_size=args.embed_size, num_classes=args.num_labels,
num_filters=args.num_filters, filter_sizes=args.filter_sizes, device=args.device)
model.load_state_dict(new_state_dict)
elif args.model_type == 'lstm':
model = LSTMModel(n_vocab=args.vocab_size, embed_size=args.embed_size, num_classes=args.num_labels,
hidden_size=args.hidden_size, device=args.device)
model.load_state_dict(new_state_dict)
elif args.model_type == 'char-cnn':
model = CharCNN(num_features=args.num_features, num_classes=args.num_labels)
model.load_state_dict(new_state_dict)
else:
raise ValueError('model type is not found!')
return model.to(args.device)
def start(config):
global sess
print(config)
model = LSTMModel(config)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
return train(train_set, valid_set, test_set, model)
def main(args):
df = pd.read_csv(args.dataset)
# df = df.iloc[::24,:]
# Preprocess input and reshapes to
# (num_samples, window_size, 1)
processor = DataProcessor(window_size=args.window_size,
forecast_size=args.forecast,
shift=args.shift)
train_X, train_y, test_X, test_y, raw_series = processor.preprocess(df)
# train or load model
lstm = LSTMModel(args.window_size, args.forecast)
print(lstm.model.summary())
if not args.eval_only:
lstm.fit(train_X, train_y, epochs=args.epochs)
lstm.save(args.model_path)
else:
lstm.load(args.model_path)
# evaluation and plots
preds = lstm.predict(test_X[-1].reshape(1, -1, 1))
preds = processor.postprocess(preds)
plot_test_datapoint(test_X[-1], test_y[-1], preds[0], args.forecast)
preds_moving = moving_test_window_preds(lstm,
test_X[0, :],
n_future_preds=1000,
step=args.forecast)
preds_moving = np.array(preds_moving).reshape(-1, 1)
preds_moving = processor.postprocess(preds_moving)
plot_moving_window(df['datetime'], raw_series, preds_moving)
def lstmTrain(args):
data_loader = TextLoader('data', batchSize, numSteps)
args.vocabSize = data_loader.vocab_size
print args.vocabSize
_lstmModel = LSTMModel(args)
with tf.Session() as trainSess:
tf.initialize_all_variables().run()
saver = tf.train.Saver(tf.all_variables())
for currEpoch in xrange(numEpochs):
# For reading batches of training data.
currBatchPointer = 0
# Set the learning rate. Decay after every epoch.
trainSess.run(
tf.assign(_lstmModel.learningRate,
learningRate * decayRate**e))
state = _lstmModel.initialState.eval()
for currBatch in xrange(numBatches):
# Set input and target output data for current batch.
inData = inDataBatches[currBatchPointer]
targetData = targetDataBatches[currBatchPointer]
#print inData
# We will feed the data to the session.
inputFeed = {
_lstmModel.inputData: x,
_lstmModel.targetOutput: y,
_lstmModel.initialState: state
}
trainLoss, state, _ = trainSess.run([
_lstmModel.cost, _lstmModel.final_state,
_lstmModel.trainStep
], inputFeed)
print "epoch".currEpoch
print "trainingLoss".trainLoss
# Save a checkpoint
if currEpoch % 5 == 0:
checkpointPath = os.path.join(args.save_dir,
'lstmModel.ckpt')
saver.save(trainSess,
checkpoint_path,
global_step=currEpoch * numBatches + currBatch)
print "Saving checkpoint".format(checkpoint_path)
def load_model(path_to_state_dict: str, path_to_config_file: str):
with open(path_to_config_file, 'r') as file:
config_file = json.load(file)
Model = LSTMModel(**config_file)
Model.load_state_dict(torch.load(path_to_state_dict))
Model.eval() #LN in eval mode
return Model, config_file
def run_train(train_df):
# init fasttext embedding weights
Main.fasttext_embedding_init()
model_obj = LSTMModel(max_sentence_size=Params.max_sentence_size,
embed_size=Params.embed_size,
vocab_size=len(Params.sentence_tokenizer.word_index) + 1,
lstm_units=Params.lstm_units,
dense_size=Params.dense_size,
label_size=Params.label_size)
model = model_obj.get_model()
reduce_lr = tf.keras.callbacks.ReduceLROnPlateau(monitor='val_loss',
factor=Params.ReduceLROnPlateau_factor,
patience=Params.ReduceLROnPlateau_patience,
min_lr=Params.ReduceLROnPlateau_min_lr)
if Params.optimizer == "sgd":
optimizer = tf.keras.optimizers.SGD(learning_rate=Params.lr)
elif Params.optimizer == "adam":
optimizer = tf.keras.optimizers.Adam(learning_rate=Params.lr, beta_1=0.9, beta_2=0.999)
model.compile(optimizer=optimizer, loss="mean_squared_error", metrics=["accuracy"])
print("------------model summary-------------")
print(model.summary())
# split train-valid
# validation_split=Params.validation_split # dataset sonundan % x'i valid olarak alıyor, yanlış yöntem !
train, valid = train_test_split(train_df,
stratify=train_df[["duplicate"]],
test_size=Params.test_size,
random_state=Params.random_state)
my_callbacks = [
tf.keras.callbacks.EarlyStopping(monitor="val_loss", patience=Params.early_stop_patience),
reduce_lr
]
history = model.fit([np.array(train["q1"].tolist()), np.array(train["q2"].tolist())],
np.array(train["duplicate"].tolist()),
batch_size=Params.batch_size,
epochs=Params.epoch,
validation_data=([np.array(valid["q1"].tolist()), np.array(valid["q2"].tolist())],
np.array(valid["duplicate"].tolist())),
verbose=1,
shuffle=True,
callbacks=my_callbacks)
model.save(os.path.join(Params.model_dir, "model.h5"))
print("-------history---------")
print(history.history)
Main.plot(history)
return model
def training_model(train_data,
test_data,
num_epochs,
batch_size=8,
input_dim=1,
hidden_dim=100,
output_dim=100,
seq_dim=7):
train_loader = DataLoader(dataset=train_data,
batch_size=batch_size,
shuffle=True,
drop_last=True)
test_loader = DataLoader(dataset=train_data,
batch_size=batch_size,
shuffle=True,
drop_last=True)
Mymodel = LSTMModel(input_dim, hidden_dim, 1, output_dim)
loss_function = nn.MSELoss()
optimizer = torch.optim.Adam(Mymodel.parameters(), lr=0.0001)
iters = 0
hisloss = []
for epoch in range(num_epochs):
for data_val, target in train_loader:
# clean the previous gredient
optimizer.zero_grad()
outputs = Mymodel(data_val)
#calculate loss
loss = loss_function(outputs, target)
hisloss.append(loss.item())
# using loss to calculate gredient, stored in model
loss.backward()
# using gredient to update model parameters
optimizer.step()
iters += 1
if iters % 300 == 0:
for test_val, test_target in test_loader:
test_outputs = Mymodel(test_val)
loss2 = loss_function(test_outputs, test_target)
print('Iteration: {}. TrainLoss: {}. TestLoss: {}'.format(
iters, loss.item(), loss2.item()))
torch.save(
Mymodel.state_dict(),
'Trained_model/trained_model_' + str(iters) + '.pkl')
plt.plot(hisloss)
plt.xlabel('Iteration')
plt.ylabel('Training loss')
plt.title('Traing process')
plt.grid(True)
plt.savefig('Trained_model/loss.png')
return Mymodel
def __init__(self, t=DEFAULT_CONSEC_FRAMES):
print("fall detector init")
start_time = time.time()
self.consecutive_frames = t
self.args = self.cli()
argss = [copy.deepcopy(self.args) for _ in range(self.args.num_cams)]
self.model = LSTMModel(h_RNN=32,
h_RNN_layers=2,
drop_p=0.2,
num_classes=7)
self.model.load_state_dict(
torch.load('lstm2.sav', map_location=argss[0].device))
print("Model Loaded")
print("Model loaded in time: " + str(time.time() - start_time))
def test_lstm(data_size: float, epoch: int, batch_size: int = 64):
"""
Evaluate the LSTM model on the DSTC2 data
:param data_size: size of data sliced
:param epoch: number of epochs to train the model
:param batch_size: batch size for each training
:return:
"""
training_data, training_labels = DSTC2.trainset(500).word_vecs(
raw_label=True)
model = LSTMModel(training_data, training_labels, max_feature_length=50)
model.verbose = 1
model.train(data_size, epoch, batch_size)
testing_data, testing_labels = DSTC2.testset(500).word_vecs(raw_label=True)
return 'ld', data_size, epoch, model.predict(testing_data, testing_labels)
def main():
X_train = load_X(X_train_signals_paths)
X_test = load_X(X_test_signals_paths)
y_train = load_y(y_train_path)
y_test = load_y(y_test_path)
# Input Data
training_data_count = len(X_train) # 7352 training series (with 50% overlap between each serie)
test_data_count = len(X_test) # 2947 testing series
n_steps = len(X_train[0]) # 128 timesteps per series
n_input = len(X_train[0][0]) # 9 input parameters per timestep
# Some debugging info
print("Some useful info to get an insight on dataset's shape and normalisation:")
print("(X shape, y shape, every X's mean, every X's standard deviation)")
print(X_test.shape, y_test.shape, np.mean(X_test), np.std(X_test))
print("The dataset is therefore properly normalised, as expected, but not yet one-hot encoded.")
for lr in learning_rate:
arch = cfg.arch
if arch['name'] == 'LSTM1' or arch['name'] == 'LSTM2':
net = LSTMModel()
elif arch['name'] == 'Res_LSTM':
net = Res_LSTMModel()
elif arch['name'] == 'Res_Bidir_LSTM':
net = Res_Bidir_LSTMModel()
elif arch['name'] == 'Bidir_LSTM1' or arch['name'] == 'Bidir_LSTM2':
net = Bidir_LSTMModel()
else:
print("Incorrect architecture chosen. Please check architecture given in config.py. Program will exit now! :( ")
sys.exit()
net.apply(init_weights)
print(diag)
opt = torch.optim.Adam(net.parameters(), lr=lr)
criterion = nn.CrossEntropyLoss()
net = net.float()
params = train(net, X_train, y_train, X_test, y_test, opt=opt, criterion=criterion, epochs=epochs, clip_val=clip_val)
evaluate(params['best_model'], X_test, y_test, criterion)
plot(params['epochs'], params['train_loss'], params['test_loss'], 'loss', lr)
plot(params['epochs'], params['train_accuracy'], params['test_accuracy'], 'accuracy', lr)
def main(_):
vocabulary = Vocabulary()
vocabulary.load_vocab(FLAGS.vocab_file)
if os.path.isdir(FLAGS.checkpoint_path):
FLAGS.checkpoint_path =\
tf.train.latest_checkpoint(FLAGS.checkpoint_path)
model = LSTMModel(vocabulary.vocab_size, sampling=True,
lstm_size=FLAGS.lstm_size, num_layers=FLAGS.num_layers,
use_embedding=FLAGS.use_embedding,
embedding_size=FLAGS.embedding_size)
model.load(FLAGS.checkpoint_path)
start = vocabulary.encode(FLAGS.start_string)
arr = model.predict(FLAGS.max_length, start, vocabulary.vocab_size)
print(vocabulary.decode(arr))
def test_lstm_reuters(data_size: float, epoch: int, batch_size: int = 64):
"""
Evaluate the LSTM model on the Reuters data
:param data_size: size of data sliced
:param epoch: number of epochs to train the model
:param batch_size: batch size for each training
:return:
"""
reuters = Reuters(num_words=500, maxlen=500)
training_data, training_labels = reuters.training_set()
testing_data, testing_labels = reuters.testing_set()
model = LSTMModel(training_data,
training_labels,
max_feature_length=500,
top_words=5000)
model.verbose = 1
model.train(data_size, epoch, batch_size)
return 'lr', data_size, epoch, model.predict(testing_data, testing_labels)
def main():
# create instance of config
config = Config()
# create instance of datadeal
datadeal = DataDeal(config)
#get input data
train_in, train_out, valid_in, valid_out, scaler, valid_x = datadeal.data_Deal()
# create instance of model
model = LSTMModel(config)
# get result
pre_value, act_value = model.run_Session(train_in, train_out, valid_in, valid_out)
#model.run_Session(train_in, train_out, valid_in, valid_out)
# calculate RMSE
value_pre, value_real = datadeal.inv_Scale(scaler = scaler, valid_x = valid_x, data_pre = pre_value, data_act = act_value)
# save result
with open(config.dir_output + "result_2.txt", "w") as f:
f.write("PRE" + "\t" + "ACT" + "\n")
for i in range(len(value_pre)):
f.write(str(int(value_pre[i])) + "\t" + str(int(value_real[i])) + "\n")
def evaluation(provincename, cityname, modelpath, data):
lat, long = get_location_using_baidu(provincename+cityname)
Mymodel = LSTMModel(1, 100, 1, 100)
Mymodel.load_state_dict(torch.load(modelpath))
series = data.loc[(data["provinceName"] == provincename) & (data["cityName"] == cityname), "ts"].values.tolist()
series = np.reshape(series,(-1,3))
if np.isnan(series[-1][0]):
series = series[:-1]
diff_series = np.diff(series,axis = 0)
n = len(diff_series)
predict_series = np.array(series[0:7,0:1])
store_diff = np.array(diff_series[0:7,0:1])
for i in range(n-7):
seq = np.array(diff_series[i:i+7])
total_recover = np.sum(seq[:,1])
total_death = np.sum(seq[:,2])
seq = seq[:,0:1]
mean = np.mean(seq[:,0],axis = 0)
std = np.std(seq[:,0],axis = 0)
seq -= mean
if std!=0:
seq /= std
tensor_seq = torch.tensor(seq, dtype=torch.float, requires_grad=False)
add_seq = torch.tensor([[lat], [long], [total_recover], [total_death], [mean], [std]])
tensor_seq = torch.cat([tensor_seq,add_seq])
tensor_seq.resize_(1, 13, 1)
predictions = np.array(Mymodel(tensor_seq).tolist()[0])
real_diff = predictions * std + mean
store_diff = np.append(store_diff,[real_diff],axis = 0)
if i>=n-7:
print (diff_series)
print ([real_diff[0],0,0])
diff_series = np.append(diff_series,[real_diff[0],0,0],axis = 0)
predict_series = np.append(predict_series,[np.array(list(map(sum,zip(predict_series[-1],real_diff))))],axis = 0)
else:
predict_series = np.append(predict_series,[np.array(list(map(sum,zip(series[i+6][0:1],real_diff))))],axis = 0)
return series, predict_series, provincename+cityname, store_diff, diff_series
def main(_):
if os.path.exists(checkpoint_path) is False:
os.makedirs(checkpoint_path)
# 读取训练文本
with open(datafile, 'r', encoding='utf-8') as f:
train_data = f.read()
# 加载/生成 词典
vocabulary = Vocabulary()
if FLAGS.vocab_file:
vocabulary.load_vocab(FLAGS.vocab_file)
else:
vocabulary.build_vocab(train_data)
vocabulary.save(FLAGS.vocab_file)
input_ids = vocabulary.encode(train_data)
g = batch_generator(input_ids, FLAGS.batch_size, FLAGS.num_steps)
model = LSTMModel(vocabulary.vocab_size,
batch_size=FLAGS.batch_size,
num_steps=FLAGS.num_steps,
lstm_size=FLAGS.lstm_size,
num_layers=FLAGS.num_layers,
learning_rate=FLAGS.learning_rate,
train_keep_prob=FLAGS.train_keep_prob,
use_embedding=FLAGS.use_embedding,
embedding_size=FLAGS.embedding_size)
model.train(
g,
FLAGS.max_steps,
checkpoint_path,
FLAGS.save_every_n,
FLAGS.log_every_n,
)
print('Basic Dialog RNN Model.')
elif args.base_model == 'GRU':
model = GRUModel(D_m,
D_e,
D_h,
n_classes=n_classes,
dropout=args.dropout)
print('Basic GRU Model.')
elif args.base_model == 'LSTM':
model = LSTMModel(D_m,
D_e,
D_h,
n_classes=n_classes,
dropout=args.dropout)
print('Basic LSTM Model.')
else:
print('Base model must be one of DialogRNN/LSTM/GRU/Transformer')
raise NotImplementedError
name = 'Base'
if cuda:
model.cuda()
# for daily_dialog_bert2.pkl
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_dataset,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if os.path.exists(os.path.join(args.model, 'checkpoint.pth.tar')):
# load existing model
model_info = torch.load(os.path.join(args.model, 'checkpoint.pth.tar'))
print("==> loading existing model '{}' ".format(model_info['arch']))
original_model = models.__dict__[model_info['arch']](pretrained=False)
model = LSTMModel(original_model, model_info['arch'],
model_info['num_classes'], model_info['lstm_layers'],
model_info['hidden_size'], model_info['fc_size'])
# print(model)
model.cuda()
model.load_state_dict(model_info['state_dict'])
best_prec = model_info['best_prec']
cur_epoch = model_info['epoch']
else:
if not os.path.isdir(args.model):
os.makedirs(args.model)
# load and create model
print("==> creating model '{}' ".format(args.arch))
original_model = models.__dict__[args.arch](pretrained=True)
model = LSTMModel(original_model, args.arch,
len(train_dataset.classes), args.lstm_layers,
args.hidden_size, args.fc_size)
def __init__(self, env, obs_space, action_space, ignoreLTL, gnn_type,
dumb_ac, freeze_ltl):
super().__init__()
# Decide which components are enabled
self.use_progression_info = "progress_info" in obs_space
self.use_text = not ignoreLTL and (gnn_type == "GRU" or gnn_type
== "LSTM") and "text" in obs_space
self.use_ast = not ignoreLTL and ("GCN"
in gnn_type) and "text" in obs_space
self.gnn_type = gnn_type
self.device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
self.action_space = action_space
self.dumb_ac = dumb_ac
self.freeze_pretrained_params = freeze_ltl
if self.freeze_pretrained_params:
print("Freezing the LTL module.")
self.env_model = getEnvModel(env, obs_space)
# Define text embedding
if self.use_progression_info:
self.text_embedding_size = 32
self.simple_encoder = nn.Sequential(
nn.Linear(obs_space["progress_info"], 64), nn.Tanh(),
nn.Linear(64, self.text_embedding_size),
nn.Tanh()).to(self.device)
print(
"Linear encoder Number of parameters:",
sum(p.numel() for p in self.simple_encoder.parameters()
if p.requires_grad))
elif self.use_text:
self.word_embedding_size = 32
self.text_embedding_size = 32
if self.gnn_type == "GRU":
self.text_rnn = GRUModel(
obs_space["text"], self.word_embedding_size, 16,
self.text_embedding_size).to(self.device)
else:
assert (self.gnn_type == "LSTM")
self.text_rnn = LSTMModel(
obs_space["text"], self.word_embedding_size, 16,
self.text_embedding_size).to(self.device)
print(
"RNN Number of parameters:",
sum(p.numel() for p in self.text_rnn.parameters()
if p.requires_grad))
elif self.use_ast:
hidden_dim = 32
self.text_embedding_size = 32
self.gnn = GNNMaker(self.gnn_type, obs_space["text"],
self.text_embedding_size).to(self.device)
print(
"GNN Number of parameters:",
sum(p.numel() for p in self.gnn.parameters()
if p.requires_grad))
# Memory specific code.
self.image_embedding_size = self.env_model.size()
self.memory_rnn = nn.LSTMCell(self.image_embedding_size,
self.semi_memory_size)
self.embedding_size = self.semi_memory_size
print("embedding size:", self.embedding_size)
if self.use_text or self.use_ast or self.use_progression_info:
self.embedding_size += self.text_embedding_size
if self.dumb_ac:
# Define actor's model
self.actor = PolicyNetwork(self.embedding_size, self.action_space)
# Define critic's model
self.critic = nn.Sequential(nn.Linear(self.embedding_size, 1))
else:
# Define actor's model
self.actor = PolicyNetwork(self.embedding_size,
self.action_space,
hiddens=[64, 64, 64],
activation=nn.ReLU())
# Define critic's model
self.critic = nn.Sequential(nn.Linear(self.embedding_size, 64),
nn.Tanh(), nn.Linear(64, 64),
nn.Tanh(), nn.Linear(64, 1))
# Initialize parameters correctly
self.apply(init_params)
train_data = Corpus('data/train.dat')
valid_data = Corpus('data/valid.dat')
test_data = Corpus('data/test.dat')
# =================================================
# Build model
# =================================================
print('=' * 89)
print('building model...')
print('=' * 89)
n = len(corpus.vocab)
# model = RNNModel(args.model, n, EMBED_SIZE, NUM_HID, NUM_LAY)
model = LSTMModel(n, EMBED_SIZE, NUM_HID, glove_path, corpus.word2idx)
if args.cuda:
model.cuda()
# criterion = nn.CrossEntropyLoss()
# =================================================
# Utility functions
# =================================================
# *** do not use ***
eval_batch_size = 10
# train_data = batchify(corpus.train, BATCH_SIZE)
# valid_data = batchify(corpus.valid, eval_batch_size)
# test_data = batchify(corpus.test, eval_batch_size)
# -*- coding: utf-8 -*-
# @Author: LogicJake
# @Date: 2018-11-13 19:02:55
# @Last Modified time: 2018-11-18 20:46:42
from preprocessing import Preprocessing
from model import LSTMModel
if __name__ == '__main__':
preprocessing = Preprocessing('../..//dataset/input.csv',
'../../dataset/output.csv')
preprocessing.reformat()
model = LSTMModel()
model.train()
def train(trainX, trainY, epoch, lr, batchSize, modelPath, lookBack, method):
lossFilePath = "../model/loss_ResRNN-4.pkl"
output = open(lossFilePath, 'wb')
lossList = []
n = trainX.shape[0]
print("trainx num is:", n)
batchNum = n // batchSize - 1
print("batch num is:", batchNum)
if method == "RNN":
net = RNNModel(inputDim=1,
hiddenNum=100,
outputDim=1,
layerNum=1,
cell="RNN")
if method == "LSTM":
net = LSTMModel(inputDim=1,
hiddenNum=100,
outputDim=1,
layerNum=1,
cell="LSTM")
if method == "GRU":
net = GRUModel(inputDim=1,
hiddenNum=100,
outputDim=1,
layerNum=1,
cell="GRU")
if method == "ResRNN":
#net = ResidualRNNModel(inputDim=1, hiddenNum=100, outputDim=1, layerNum=1, cell="RNNCell")
net = ResRNNModel(inputDim=1, hiddenNum=100, outputDim=1, resDepth=-1)
if method == "attention":
net = AttentionRNNModel(inputDim=1,
hiddenNum=100,
outputDim=1,
seqLen=lookBack)
if method == "ANN":
net = ANNModel(inputDim=lookBack, hiddenNum=100, outputDim=1)
if method == "new":
net = DecompositionNetModel(inputDim=lookBack,
fchiddenNum=100,
rnnhiddenNum=100,
outputDim=1)
optimizer = optim.RMSprop(net.parameters(), lr=lr, momentum=0.9)
#scheduler = torch.optim.lr_scheduler.ReduceLROnPlateau(optimizer, 'min')
#optimizer = optim.SGD(net.parameters(), lr=0.001)
t1 = time.time()
for i in range(epoch):
trainX, trainY = shuffle(trainX, trainY, random_state=epoch)
batchStart = 0
lossSum = 0
for j in range(batchNum):
x = trainX[batchStart:batchStart + batchSize, :, :]
y = trainY[batchStart:batchStart + batchSize]
x = torch.from_numpy(x)
y = torch.from_numpy(y)
x, y = Variable(x), Variable(y)
optimizer.zero_grad()
if method == "new":
pred = net.forward(x, batchSize=batchSize)
# criterion = nn.MSELoss()
#loss = criterion(pred, y)
loss = MSE_Loss(pred, y)
else:
pred = net.forward(x, batchSize=batchSize)
criterion = nn.MSELoss()
loss = criterion(pred, y)
lossSum += loss.data.numpy()[0]
if j % 30 == 0 and j != 0:
print("current loss is:", lossSum / 10)
lossList.append(lossSum / 10)
lossSum = 0
#net.zero_grad()
loss.backward()
optimizer.step()
#scheduler.step(loss)
batchStart += batchSize
print("%d epoch is finished!" % i)
t2 = time.time()
print("train time:", t2 - t1)
p.dump(lossList, output, -1)
torch.save(net, modelPath)
max_step = 20000
# Directory where the checkpoints will be saved
checkpoint_dir = './training_checkpoints'
# Name of the checkpoint files
checkpoint_prefix = os.path.join(checkpoint_dir, "ckpt_{step}")
input_ids = vocabulary.encode(train_data)
batch_data = batch_generator(input_ids, batch_size, seq_len)
model = LSTMModel(vocabulary.vocab_size,
batch_size=batch_size,
num_steps=seq_len,
lstm_size=128,
num_layers=2,
sampling=False,
drop_out=0.5,
use_embedding=False,
embedding_size=128)
optimizer = tf.keras.optimizers.Adam(learning_rate=0.001)
loss_fn = tf.losses.SparseCategoricalCrossentropy(from_logits=True)
# define metrics
train_loss = tf.keras.metrics.Mean(name='train_loss')
step = 0
for nb, (X, y) in enumerate(batch_data):
start = time.time()
train_loss.reset_states()
step += 1
# Constructs the newtork.
network = args.network.lower()
vocab_size = len(vocab)
num_classes = len(train_ds.label_list)
pad_token_id = vocab.to_indices('[PAD]')
if network == 'bow':
model = BoWModel(vocab_size, num_classes, padding_idx=pad_token_id)
elif network == 'bigru':
model = GRUModel(vocab_size,
num_classes,
direction='bidirect',
padding_idx=pad_token_id)
elif network == 'bilstm':
model = LSTMModel(vocab_size,
num_classes,
direction='bidirect',
padding_idx=pad_token_id)
elif network == 'bilstm_attn':
lstm_hidden_size = 196
attention = SelfInteractiveAttention(hidden_size=2 * stm_hidden_size)
model = BiLSTMAttentionModel(attention_layer=attention,
vocab_size=vocab_size,
lstm_hidden_size=lstm_hidden_size,
num_classes=num_classes,
padding_idx=pad_token_id)
elif network == 'birnn':
model = RNNModel(vocab_size,
num_classes,
direction='bidirect',
padding_idx=pad_token_id)
elif network == 'cnn':
def main(path_to_data: str,
cache_dir: str,
texts_col: str,
labels_col: str,
n_classes: int,
batch_size: int,
batch_size_eval: int,
min_lr: int,
max_lr: int,
n_epochs: int,
cuda: int = 0):
'''
'''
df = pd.read_csv(path_to_data)
if os.path.isdir(cache_dir):
logger.info('Cache dir found here {}'.format(cache_dir))
pass
else:
logger.info('Creating cache dir')
os.mkdir(cache_dir)
# Preprocess
optimal_length = get_length(df, texts_col)
X, vocab_size = encode_texts(df,
texts_col,
max_seq_length=optimal_length,
return_vocab_size=True)
y = get_labels(df, labels_col, n_classes)
train_loader, test_loader = create_TorchLoaders(
X,
y,
test_size=0.10,
batch_size=batch_size,
batch_size_eval=batch_size_eval)
Model = LSTMModel(vocab_size=vocab_size, n_classes=n_classes)
config_dict = {
"vocab_size": vocab_size,
"n_classes": n_classes,
"max_length": optimal_length
}
if n_classes > 2:
criterion = torch.nn.CrossEntropyLoss()
else:
criterion = torch.nn.BCEWithLogitsLoss()
optim = torch.optim.Adam(Model.parameters())
## Heuristic
opt_cycle = ((((len(X) * (1 - 0.10)) / batch_size) * n_epochs) * 0.25) / 2
schedul = torch.optim.lr_scheduler.CyclicLR(optim,
min_lr,
max_lr,
step_size_up=opt_cycle,
step_size_down=opt_cycle,
mode="exp_range",
cycle_momentum=False,
gamma=0.999)
if cuda == 1:
Model.cuda()
device = "cuda"
else:
device = "cpu"
metrics = {
"training_loss": [],
"eval_loss": [],
"training_f1": [],
"eval_f1": []
}
logger.info("Starting training for {} epochs".format(n_epochs))
for epoch in range(n_epochs):
Model.train()
progress = progressbar.ProgressBar()
for batch in progress(train_loader):
batch = tuple(t for t in batch)
inputs, labels = batch #unpacking
inputs = inputs.to(device, dtype=torch.long)
labels = labels.to(device, dtype=torch.float)
preds = Model(inputs)
loss = criterion(preds, labels)
## Metrics computation
metrics["training_loss"].append(loss.item())
preds = preds.to("cpu").detach().numpy()
preds = flat_pred(preds, 0.5)
tmp_f1 = f1_score(labels.to("cpu").detach().numpy(),
preds,
average='macro')
metrics["training_f1"].append(tmp_f1)
## Backward pass ##
loss.backward()
optim.step() #Gradient descent
schedul.step()
Model.zero_grad()
logger.info(
"Epoch {} done with: training loss: {}\n training f1: {}".format(
epoch, loss.item(), tmp_f1))
## Eval
progress = progressbar.ProgressBar()
Model.eval()
for batch in progress(test_loader):
with torch.no_grad(): #computationaly efficient
batch = tuple(t for t in batch)
inputs, labels = batch
inputs = inputs.to(device, dtype=torch.long)
labels = labels.to(device, dtype=torch.float)
preds = Model(inputs)
eval_loss = criterion(preds, labels)
## Eval metrics
metrics["eval_loss"].append(eval_loss.item())
preds = preds.to("cpu").detach().numpy()
preds = flat_pred(preds, 0.5)
tmp_f1 = f1_score(labels.to("cpu").detach().numpy(),
preds,
average='macro') ## detach
metrics["eval_f1"].append(tmp_f1)
logger.info(
"Evaluation at iteration {} done: eval loss: {}\n eval f1: {}".
format(epoch, eval_loss.item(), tmp_f1))
## Bring back model to cpu
Model.cpu()
## Get/Save param dict
logger.info('Saving model in cache dir {}'.format(cache_dir))
torch.save(Model.state_dict(), os.path.join(cache_dir, 'state_dict.pt'))
with open(os.path.join(cache_dir, 'config_model.json'), 'w') as file:
json.dump(config_dict, file)
test_loader = DataLoader(
test_dataset,
batch_size=32,
shuffle=False,
num_workers=4,
collate_fn=lstm_collate_fn,
)
###############################################################################
encoder_cnn = EncoderCNN(emb_size)
encoder_cnn = encoder_cnn.to(device)
if model == "lstm":
f_rnn = LSTMModel(emb_size,
emb_size,
emb_size,
device,
bidirectional=False)
b_rnn = LSTMModel(emb_size,
emb_size,
emb_size,
device,
bidirectional=False)
f_rnn = f_rnn.to(device)
b_rnn = b_rnn.to(device)
criterion = nn.CrossEntropyLoss()
params_to_train = (list(encoder_cnn.parameters()) + list(f_rnn.parameters()) +
list(b_rnn.parameters()))
optimizer = torch.optim.SGD(params_to_train, lr=2e-1, momentum=0.9)
scheduler = lr_scheduler.StepLR(optimizer, step_size=2, gamma=0.5)
#Checking if graphic card is able to process cuda operation
if using_gpu:
device = "cuda:2"
print("Training on GPU")
else:
device = "cpu"
print("Training on CPU")
os.path.dirname(os.path.abspath(__file__))
#Hyperparameter for Models
modelparameters = [
34, 128, 35, 2, 1, 0.2
] #inputnNeurons, hidden hize, output neurons,layers, directions, dropout
model = LSTMModel(modelparameters[0], modelparameters[1],
modelparameters[2], modelparameters[3],
modelparameters[4],
modelparameters[5]) #creating the model
model.to(device)
#Hyperparameter of the Training
batch_size = 6
valid_batch_size = 11
epochs = 500
learning_rate = 0.001
print_every = 5
criterion = nn.MSELoss()
optimizer = torch.optim.Adam(model.parameters(), lr=learning_rate)
home_directory = os.path.dirname(os.path.abspath(__file__))
training_path = ""
help='number of output units for model (default: 30)')
parser.add_argument('--seed', type=int, default=1111,
help='random seed (default: 1111)')
parser.add_argument('--model_type', type=str, default='none',
help='model type to execute (default: none, pass VRAE for executing)')
args = parser.parse_args()
curr_time = strftime("%Y%m%d%H%M%S", localtime())
# args.cuda = torch.cuda.is_available()
# initialize model and params
if args.model == 'LSTM':
model = LSTMModel(cuda=args.cuda)
elif args.model == 'TCN':
channel_sizes = [args.nhid] * args.levels
model = TCNModel(args.nhid, args.opsize, channel_sizes, args.ksize, args.dropout, 128, use_cuda=args.cuda)
elif args.model == 'SOCIAL':
model = Social_Model(cuda=args.cuda)
elif args.model == 'VRAE':
model = VRAE(sequence_length=30, number_of_features=2, block='GRU')
if args.mode == 'train':
logger_dir = './runs/' + args.model + '/' + curr_time + '/'
model_dir = './models/' + args.model + '/' + curr_time + '/'
os.makedirs(model_dir)
else:
logger_dir=None
model_dir=args.model_dir
print("Creating dictionary...")
dictionary = Dictionary(query_files)
with open("./saved/dictionary.pkl", "wb") as f:
pickle.dump(dictionary, f)
nchar = len(dictionary)
max_seq_len = dictionary.max_seq_len
lr = args.lr
clip = args.clip
batch_size = args.batch_size
eval_batch_size = 10
best_val_loss = None
if args.model == 'LSTM':
model = LSTMModel(nchar, args.nhid, args.nlayers, max_seq_len, args.dropout)
if args.load_latest:
latest = max([f for f in os.listdir("./saved/lstm")])
latest_path = os.path.join("./saved/lstm", latest)
model = model.load_state_dict(torch.load(latest_path))
model = model.to(device)
save(model, args.save)
criterion = nn.NLLLoss(ignore_index=0)
optimizer = torch.optim.Adam(model.parameters(), lr=lr)
# At any point you can hit Ctrl + C to break out of training early.
try:
print("Start training...")
for epoch in tqdm(range(1, args.epochs+1)):
import torch
from dataset import SquaresDataset
from model import LSTMModel
import train_test_old
import train_test
FRAME_WIDTH = 10
LSTM_INPUT_SIZE = 50
LSTM_HIDDEN_SIZE = 32
BATCH_SIZE = 32
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
model = LSTMModel(LSTM_INPUT_SIZE, LSTM_HIDDEN_SIZE)
model = model.to(device)
squares_dataset_train = SquaresDataset(frame_width=FRAME_WIDTH, n=1000)
squares_dataset_test = SquaresDataset(frame_width=FRAME_WIDTH, n=100)
xtion1_train_loader = torch.utils.data.DataLoader(squares_dataset_train,
batch_size=BATCH_SIZE)
xtion1_test_loader = torch.utils.data.DataLoader(squares_dataset_test,
batch_size=BATCH_SIZE)
train_test.train(model,
xtion1_train_loader,
xtion1_test_loader,
n_classes=2,
epochs=2)
target_pl_train_X, target_pl_train_Y, target_pl_train_bi_X, target_pl_train_weight = utils_data.get_zx_pl_data() init_embedding = utils_data.get_embedding(FLAGS.target) # init_bi_embedding = utils_data.get_bi_embedding(FLAGS.target) tfConfig = tf.ConfigProto() tfConfig.gpu_options.per_process_gpu_memory_fraction = FLAGS.memory with tf.Graph().as_default(), tf.Session(config=tfConfig) as sess: if FLAGS.target == "zx": vocab_size = 4704 bi_vocab_size = 250734 if FLAGS.model == "lstm": m = LSTMModel(config.hidden_size, config.max_grad_norm, config.num_layers, vocab_size, config.embedding_size, config.num_classes, config.learning_rate, config.bi_direction, init_embedding) elif FLAGS.model == "lstmlm": m = LSTMLMModel(config.hidden_size, config.max_grad_norm, config.num_layers, vocab_size, config.embedding_size, config.num_classes, config.learning_rate, config.bi_direction, init_embedding) sess.run(tf.global_variables_initializer()) best_valid_f1 = 0. model_path = "model/%s_%s_%s_%s_%s.ckpt" % (FLAGS.model, FLAGS.source, FLAGS.target, str(FLAGS.pl), FLAGS.name) saver = tf.train.Saver() # saver.restore(sess, model_path) for epoch in range(config.max_epochs):