def bcn(config, data_file, embeddings, device, chekpoint, dataset, embeddings_type):
# extensions : add 2 languages, use a combination of CoVe embeddings (like ELMo)
inputs = data.Field(lower=True, include_lengths=True, batch_first=True)
labels = data.Field(sequential=False, unk_token=None)
print('Generating train, dev, test splits')
if dataset == 'IWSLT':
# using the IWSLT 2016 TED talk translation task
train, dev, test = datasets.IWSLT.splits(root=data_file, exts=['.en', '.de'], fields=[inputs, inputs])
elif dataset == 'SST-2':
train, dev, test = datasets.SST.splits(text_field=inputs, label_field=labels, root=data_file,
fine_grained=False, train_subtrees=True,
filter_pred=lambda ex: ex.label != 'neutral')
elif dataset == 'SST-5':
train, dev, test = datasets.SST.splits(text_field=inputs, label_field=labels, root=data_file,
fine_grained=True, train_subtrees=True)
elif dataset == 'IMDB':
train, test = datasets.IMDB.splits(text_field=inputs, label_field=labels, root=data_file)
train, dev = train.split(split_ratio=0.9, stratified=True) # 0.9 in order to be close to the paper
elif dataset == 'TREC-6':
train, test = datasets.TREC.splits(text_field=inputs, label_field=labels, root=data_file,
fine_grained=False)
train, dev = train.split(split_ratio=0.9, stratified=True)
elif dataset == 'TREC-50':
train, test = datasets.TREC.splits(text_field=inputs, label_field=labels, root=data_file,
fine_grained=True)
train, dev = train.split()
elif dataset == 'SNLI':
train, dev, test = datasets.SNLI.splits(text_field=inputs, label_field=labels, root=data_file)
else:
print('Invalid dataset name detected...')
return
print('Building vocabulary')
inputs.build_vocab(train, dev, test)
inputs.vocab.load_vectors(vectors=GloVe(name='840B', dim=300, cache=embeddings))
labels.build_vocab(train, dev, test)
train_iter, dev_iter, test_iter = data.BucketIterator.splits(
(train, dev, test), batch_size=config["train_batch_size"], device=torch.device(device) if device >= 0 else None,
sort_within_batch=True)
model = BCN(config=config, n_vocab=len(inputs.vocab), vocabulary=inputs.vocab.vectors, embeddings=embeddings,
num_labels=len(labels.vocab.freqs), embeddings_type=embeddings_type)
bcn_params = [p for n, p in model.named_parameters() if "mtlstm" not in n and p.requires_grad]
criterion = nn.CrossEntropyLoss()
optimizer = Adam(bcn_params, lr=0.001)
if device != -1:
model.to(device)
print(model)
total_params = sum(p.numel() for p in model.parameters())
total_trainable_params = sum(p.numel() for p in bcn_params
if p.requires_grad)
print("Total Params:", number_h(total_params))
print("Total Trainable Params:", number_h(total_trainable_params))
#####################################
# Training Pipeline
#####################################
trainer = BCNTrainer(model=model, train_loader=None, valid_loader=test_iter, criterion=criterion,
device="cpu" if device == -1 else 'cuda',
config=config, optimizers=[optimizer])
state = load_checkpoint(chekpoint)
model.load_state_dict(state["model"])
print('Generating CoVe')
test_loss, y_test, y_pred_test = trainer.test_step()
print("Test cls loss is {}".format(test_loss))
print("\n")
print("F1 on test set is {}".format(f1_macro(y_test, y_pred_test)))
print("\n")
print("Accuracy on test set is {}".format(acc(y_test, y_pred_test)))
print("\n")
return test_loss, f1_macro(y_test, y_pred_test)
def bcn(config, data_file, embeddings, device, dataset, embeddings_type):
# extensions : add 2 languages, use a combination of CoVe embeddings (like ELMo)
name = "test_model"
torch.manual_seed(123)
inputs = data.Field(lower=True, include_lengths=True, batch_first=True)
labels = data.Field(sequential=False, unk_token=None)
print('Generating train, dev, test splits')
if dataset == 'IWSLT':
# using the IWSLT 2016 TED talk translation task
train, dev, test = datasets.IWSLT.splits(root=data_file,
exts=['.en', '.de'],
fields=[inputs, inputs])
elif dataset == 'SST-2':
train, dev, test = datasets.SST.splits(
text_field=inputs,
label_field=labels,
root=data_file,
fine_grained=False,
train_subtrees=True,
filter_pred=lambda ex: ex.label != 'neutral')
elif dataset == 'SST-5':
train, dev, test = datasets.SST.splits(text_field=inputs,
label_field=labels,
root=data_file,
fine_grained=True,
train_subtrees=True)
elif dataset == 'IMDB':
train, test = datasets.IMDB.splits(text_field=inputs,
label_field=labels,
root=data_file)
train, dev = train.split(
split_ratio=0.9,
stratified=True) # 0.9 in order to be close to the paper
elif dataset == 'TREC-6':
train, test = datasets.TREC.splits(text_field=inputs,
label_field=labels,
root=data_file,
fine_grained=False)
train, dev = train.split(split_ratio=0.9, stratified=True)
elif dataset == 'TREC-50':
train, test = datasets.TREC.splits(text_field=inputs,
label_field=labels,
root=data_file,
fine_grained=True)
train, dev = train.split()
elif dataset == 'SNLI':
train, dev, test = datasets.SNLI.splits(text_field=inputs,
label_field=labels,
root=data_file)
else:
print('Invalid dataset name detected...')
return
print('Building vocabulary')
inputs.build_vocab(train, dev, test)
inputs.vocab.load_vectors(
vectors=GloVe(name='840B', dim=300, cache=embeddings))
labels.build_vocab(train, dev, test)
train_iter, dev_iter, test_iter = data.BucketIterator.splits(
(train, dev, test),
batch_size=config["train_batch_size"],
device=torch.device(device) if device >= 0 else None,
sort_within_batch=True)
model = BCN(config=config,
n_vocab=len(inputs.vocab),
vocabulary=inputs.vocab.vectors,
embeddings=embeddings,
num_labels=len(labels.vocab.freqs),
embeddings_type=embeddings_type)
bcn_params = [
p for n, p in model.named_parameters()
if "mtlstm" not in n and p.requires_grad
]
criterion = nn.CrossEntropyLoss()
optimizer = Adam(bcn_params, lr=0.001)
if device != -1:
model.to(device)
print(model)
total_params = sum(p.numel() for p in model.parameters())
total_trainable_params = sum(p.numel() for p in bcn_params
if p.requires_grad)
print("Total Params:", number_h(total_params))
print("Total Trainable Params:", number_h(total_trainable_params))
#####################################
# Training Pipeline
#####################################
trainer = BCNTrainer(model=model,
train_loader=train_iter,
valid_loader=dev_iter,
criterion=criterion,
device="cpu" if device == -1 else 'cuda',
config=config,
optimizers=[optimizer])
print('Generating CoVe')
####################################################################
# Experiment: logging and visualizing the training process
####################################################################
exp = Experiment(name, config, src_dirs=None, output_dir=EXP_DIR)
exp.add_metric("ep_loss", "line", "epoch loss class", ["TRAIN", "VAL"])
exp.add_metric("ep_f1", "line", "epoch f1", ["TRAIN", "VAL"])
exp.add_metric("ep_acc", "line", "epoch accuracy", ["TRAIN", "VAL"])
exp.add_value("epoch", title="epoch summary")
exp.add_value("progress", title="training progress")
####################################################################
# Training Loop
####################################################################
best_loss = None
early_stopping = EarlyStopping("min", config["patience"])
for epoch in range(1, config["epochs"] + 1):
train_loss = trainer.train_epoch()
print(model.w, model.gama)
val_loss, y, y_pred = trainer.eval_epoch()
# Calculate accuracy and f1-macro on the evaluation set
exp.update_metric("ep_loss", train_loss.item(), "TRAIN")
exp.update_metric("ep_loss", val_loss.item(), "VAL")
exp.update_metric("ep_f1", 0, "TRAIN")
exp.update_metric("ep_f1", f1_macro(y, y_pred), "VAL")
exp.update_metric("ep_acc", 0, "TRAIN")
exp.update_metric("ep_acc", acc(y, y_pred), "VAL")
print()
epoch_log = exp.log_metrics(["ep_loss", "ep_f1", "ep_acc"])
print(epoch_log)
exp.update_value("epoch", epoch_log)
# Save the model if the val loss is the best we've seen so far.
if not best_loss or val_loss < best_loss:
best_loss = val_loss
trainer.best_acc = acc(y, y_pred)
trainer.best_f1 = f1_macro(y, y_pred)
trainer.checkpoint(name=name)
if early_stopping.stop(val_loss):
print("Early Stopping (according to cls loss)....")
break
print("\n" * 2)
return best_loss, trainer.best_acc, trainer.best_f1
def sent_clf(dataset, config, opts, transfer=False):
from logger.experiment import Experiment
opts.name = config["name"]
X_train, y_train, _, X_val, y_val, _ = dataset
vocab = None
if transfer:
opts.transfer = config["pretrained_lm"]
checkpoint = load_checkpoint(opts.transfer)
config["vocab"].update(checkpoint["config"]["vocab"])
dict_pattern_rename(checkpoint["config"]["model"],
{"rnn_": "bottom_rnn_"})
config["model"].update(checkpoint["config"]["model"])
vocab = checkpoint["vocab"]
####################################################################
# Load Preprocessed Datasets
####################################################################
if config["preprocessor"] == "twitter":
preprocessor = twitter_preprocessor()
else:
preprocessor = None
print("Building training dataset...")
train_set = ClfDataset(X_train,
y_train,
vocab=vocab,
preprocess=preprocessor,
vocab_size=config["vocab"]["size"],
seq_len=config["data"]["seq_len"])
print("Building validation dataset...")
val_set = ClfDataset(X_val,
y_val,
seq_len=train_set.seq_len,
preprocess=preprocessor,
vocab=train_set.vocab)
src_lengths = [len(x) for x in train_set.data]
val_lengths = [len(x) for x in val_set.data]
# select sampler & dataloader
train_sampler = BucketBatchSampler(src_lengths, config["batch_size"], True)
val_sampler = SortedSampler(val_lengths)
val_sampler_train = SortedSampler(src_lengths)
train_loader = DataLoader(train_set,
batch_sampler=train_sampler,
num_workers=opts.cores,
collate_fn=ClfCollate())
val_loader = DataLoader(val_set,
sampler=val_sampler,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate())
val_loader_train_dataset = DataLoader(train_set,
sampler=val_sampler_train,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate())
####################################################################
# Model
####################################################################
ntokens = len(train_set.vocab)
model = Classifier(ntokens, len(set(train_set.labels)), **config["model"])
model.to(opts.device)
clf_criterion = nn.CrossEntropyLoss()
lm_criterion = nn.CrossEntropyLoss(ignore_index=0)
embed_parameters = filter(lambda p: p.requires_grad,
model.embed.parameters())
bottom_parameters = filter(
lambda p: p.requires_grad,
chain(model.bottom_rnn.parameters(), model.vocab.parameters()))
if config["model"]["has_att"]:
top_parameters = filter(
lambda p: p.requires_grad,
chain(model.top_rnn.parameters(), model.attention.parameters(),
model.classes.parameters()))
else:
top_parameters = filter(
lambda p: p.requires_grad,
chain(model.top_rnn.parameters(), model.classes.parameters()))
embed_optimizer = optim.ASGD(embed_parameters, lr=0.0001)
rnn_optimizer = optim.ASGD(bottom_parameters)
top_optimizer = Adam(top_parameters, lr=config["top_lr"])
####################################################################
# Training Pipeline
####################################################################
# Trainer: responsible for managing the training process
trainer = SentClfTrainer(model,
train_loader,
val_loader, (lm_criterion, clf_criterion),
[embed_optimizer, rnn_optimizer, top_optimizer],
config,
opts.device,
valid_loader_train_set=val_loader_train_dataset,
unfreeze_embed=config["unfreeze_embed"],
unfreeze_rnn=config["unfreeze_rnn"])
####################################################################
# Experiment: logging and visualizing the training process
####################################################################
# exp = Experiment(opts.name, config, src_dirs=opts.source,
# output_dir=EXP_DIR)
# exp.add_metric("ep_loss_lm", "line", "epoch loss lm",
# ["TRAIN", "VAL"])
# exp.add_metric("ep_loss_cls", "line", "epoch loss class",
# ["TRAIN", "VAL"])
# exp.add_metric("ep_f1", "line", "epoch f1", ["TRAIN", "VAL"])
# exp.add_metric("ep_acc", "line", "epoch accuracy", ["TRAIN", "VAL"])
#
# exp.add_value("epoch", title="epoch summary")
# exp.add_value("progress", title="training progress")
ep_loss_lm = [10000, 10000]
ep_loss_cls = [10000, 10000]
ep_f1 = [0, 0]
ep_acc = [0, 0]
e_log = 0
progress = 0
####################################################################
# Resume Training from a previous checkpoint
####################################################################
if transfer:
print("Transferring Encoder weights ...")
dict_pattern_rename(checkpoint["model"], {
"encoder": "bottom_rnn",
"decoder": "vocab"
})
load_state_dict_subset(model, checkpoint["model"])
print(model)
####################################################################
# Training Loop
####################################################################
best_loss = None
early_stopping = EarlyStopping("min", config["patience"])
for epoch in range(0, config["epochs"]):
train_loss = trainer.train_epoch()
val_loss, y, y_pred = trainer.eval_epoch(val_set=True)
_, y_train, y_pred_train = trainer.eval_epoch(train_set=True)
# exp.update_metric("ep_loss_lm", train_loss[0], "TRAIN")
ep_loss_lm[0] = train_loss[0]
# exp.update_metric("ep_loss_lm", val_loss[0], "VAL")
ep_loss_lm[1] = val_loss[0]
# exp.update_metric("ep_loss_cls", train_loss[1], "TRAIN")
# exp.update_metric("ep_loss_cls", val_loss[1], "VAL")
ep_loss_cls[0] = train_loss[1]
ep_loss_cls[1] = val_loss[1]
# exp.update_metric("ep_f1", f1_macro(y_train, y_pred_train),
# "TRAIN")
ep_f1[0] = f1_macro(y_train, y_pred_train)
# exp.update_metric("ep_f1", f1_macro(y, y_pred), "VAL")
ep_f1[1] = f1_macro(y, y_pred)
# exp.update_metric("ep_acc", acc(y_train, y_pred_train), "TRAIN")
# exp.update_metric("ep_acc", acc(y, y_pred), "VAL")
ep_acc[0] = acc(y_train, y_pred_train)
ep_acc[1] = acc(y, y_pred)
# print('Train lm Loss : {}\nVal lm Loss : {}\nTrain cls Loss : {}\nVal cls Loss : {}\n Train f1 : {}\nVal f1 : {}\nTrain acc : {}\n Val acc : {}'.format(
# ep_loss_lm[0], ep_loss_lm[1], ep_loss_cls[0], ep_loss_cls[1], ep_f1[0], ep_f1[1], ep_acc[0], ep_acc[1]
# ))
# epoch_log = exp.log_metrics(["ep_loss_lm", "ep_loss_cls","ep_f1", "ep_acc"])
epoch_log = 'Train lm Loss : {}\nVal lm Loss : {}\nTrain cls Loss : {}\nVal cls Loss : {}\n Train f1 : {}\nVal f1 : {}\nTrain acc : {}\n Val acc : {}'.format(
ep_loss_lm[0], ep_loss_lm[1], ep_loss_cls[0], ep_loss_cls[1],
ep_f1[0], ep_f1[1], ep_acc[0], ep_acc[1])
print(epoch_log)
# exp.update_value("epoch", epoch_log)
e_log = epoch_log
# print('')
# Save the model if the val loss is the best we've seen so far.
# if not best_loss or val_loss[1] < best_loss:
# best_loss = val_loss[1]
# trainer.best_acc = acc(y, y_pred)
# trainer.best_f1 = f1_macro(y, y_pred)
# trainer.checkpoint(name=opts.name, timestamp=True)
best_loss = val_loss[1]
trainer.best_acc = acc(y, y_pred)
trainer.best_f1 = f1_macro(y, y_pred)
trainer.checkpoint(name=opts.name, tags=str(epoch))
# if early_stopping.stop(val_loss[1]):
# print("Early Stopping (according to classification loss)....")
# break
print("\n" * 2)
return best_loss, trainer.best_acc, trainer.best_f1
def clf_features_baseline_runner(yaml,
word2idx,
idx2word,
weights,
cluster=False):
if cluster is False:
from logger.experiment import Experiment
# torch.manual_seed(0)
# torch.backends.cudnn.deterministic = True
# torch.backends.cudnn.benchmark = False
opts, config = train_options(yaml)
####################################################################
# Data Loading and Preprocessing
####################################################################
X_train, y_train, X_val, y_val, X_test, y_test = load_dataset(
config["data"]["dataset"])
# load word embeddings
# if config["data"]["embeddings"] == "wiki.en.vec":
# word2idx, idx2word, weights = load_word_vectors_from_fasttext(
# os.path.join(EMB_DIR, config["data"]["embeddings"]),
# config["data"]["embeddings_dim"])
# else:
# word2idx, idx2word, weights = load_word_vectors(
# os.path.join(EMB_DIR, config["data"]["embeddings"]),
# config["data"]["embeddings_dim"])
####################################################################
# Linguistic Features Loading and Selection
####################################################################
# Any features/lexicon should be in the form of a dictionary
# For example: lex = {'word':[0., 1., ..., 0.]}
# load affect features
print("Loading linguistic features...")
# todo: streamline feature loading pipeline
features, feat_length = load_features(config["data"]["features"])
# assert ... same len
# build dataset
print("Building training dataset...")
train_set = ClfDataset(X_train,
y_train,
word2idx,
feat_length=feat_length,
features_dict=features)
print("Building validation dataset...")
val_set = ClfDataset(X_test,
y_test,
word2idx,
features_dict=features,
feat_length=feat_length)
test_set = ClfDataset(X_test,
y_test,
word2idx,
features_dict=features,
feat_length=feat_length)
train_set.truncate(500)
val_set.truncate(100)
src_lengths = [len(x) for x in train_set.data]
val_lengths = [len(x) for x in val_set.data]
test_lengths = [len(x) for x in test_set.data]
# select sampler & dataloader
train_sampler = BucketBatchSampler(src_lengths, config["batch_size"], True)
val_sampler = SortedSampler(val_lengths)
val_sampler_train = SortedSampler(src_lengths)
test_sampler = SortedSampler(test_lengths)
train_loader = DataLoader(train_set,
batch_sampler=train_sampler,
num_workers=opts.cores,
collate_fn=ClfCollate_withFeatures())
val_loader = DataLoader(val_set,
sampler=val_sampler,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate_withFeatures())
val_loader_train_dataset = DataLoader(train_set,
sampler=val_sampler_train,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate_withFeatures())
test_loader = DataLoader(test_set,
sampler=test_sampler,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate_withFeatures())
####################################################################
# Model
####################################################################
model = BaselineConcClassifier(ntokens=weights.shape[0],
nclasses=len(set(train_set.labels)),
feat_size=feat_length,
**config["model"])
model.word_embedding.embedding.weight = nn.Parameter(
torch.from_numpy(weights), requires_grad=False)
model.to(opts.device)
print(model)
####################################################################
# Count total parameters of model
####################################################################
total_params = sum(p.numel() for p in model.parameters())
total_trainable_params = sum(p.numel() for p in model.parameters()
if p.requires_grad)
print("Total Params:", number_h(total_params))
print("Total Trainable Params:", number_h(total_trainable_params))
if config["class_weights"]:
class_weights = class_weigths(train_set.labels, to_pytorch=True)
class_weights = class_weights.to(opts.device)
criterion = nn.CrossEntropyLoss(weight=class_weights)
else:
criterion = nn.CrossEntropyLoss()
clf_parameters = filter(lambda p: p.requires_grad, model.parameters())
clf_optimizer = Adam(clf_parameters, weight_decay=1e-5)
####################################################################
# Training Pipeline
####################################################################
_outputs = []
def batch_callback(i_batch, losses, batch_outputs):
_outputs.append(batch_outputs)
if trainer.step % config["log_interval"] == 0:
outputs = list(zip(*_outputs))
_losses = numpy.array(losses[-config["log_interval"]:]).mean(0)
exp.update_metric("clf-loss", _losses)
_y_hat = torch.cat(outputs[0]).max(-1)[1].cpu().data.numpy()
_y = torch.cat(outputs[1]).cpu().data.numpy()
f1 = f1_score(_y, _y_hat, average='macro')
exp.update_metric("f1-train", f1)
losses_log = exp.log_metrics(["clf-loss", 'f1-train'])
exp.update_value("progress",
trainer.progress_log + "\n" + losses_log)
# clean lines and move cursor back up N lines
print("\n\033[K" + losses_log)
print("\033[F" * (len(losses_log.split("\n")) + 2))
_outputs.clear()
# Trainer: responsible for managing the training process
trainer = ClfTrainer_withFeatures(
model=model,
train_loader=train_loader,
valid_loader=val_loader,
valid_loader_train_set=val_loader_train_dataset,
test_loader=test_loader,
criterion=criterion,
optimizers=clf_optimizer,
config=config,
device=opts.device,
batch_end_callbacks=None)
####################################################################
# Experiment: logging and visualizing the training process
####################################################################
if cluster is False:
exp = Experiment(opts.name,
config,
src_dirs=opts.source,
output_dir=EXP_DIR)
exp.add_metric("ep_loss", "line", "epoch loss", ["TRAIN", "VAL"])
exp.add_metric("ep_f1", "line", "epoch f1", ["TRAIN", "VAL"])
exp.add_metric("ep_acc", "line", "epoch accuracy", ["TRAIN", "VAL"])
exp.add_metric("ep_pre", "line", "epoch precision", ["TRAIN", "VAL"])
exp.add_metric("ep_rec", "line", "epoch recall", ["TRAIN", "VAL"])
exp.add_value("epoch", title="epoch summary", vis_type="text")
exp.add_value("progress", title="training progress", vis_type="text")
####################################################################
# Training Loop
####################################################################
best_loss = None
early_stopping = Early_stopping("min", config["patience"])
for epoch in range(config["epochs"]):
train_loss = trainer.train_epoch()
val_loss, y, y_pred = trainer.eval_epoch(val_set=True)
_, y_train, y_pred_train = trainer.eval_epoch(train_set=True)
# Calculate accuracy and f1-macro on the evaluation set
if cluster is False:
exp.update_metric("ep_loss", train_loss.item(), "TRAIN")
exp.update_metric("ep_loss", val_loss.item(), "VAL")
exp.update_metric("ep_f1", f1_macro(y_train, y_pred_train),
"TRAIN")
exp.update_metric("ep_f1", f1_macro(y, y_pred), "VAL")
exp.update_metric("ep_acc", acc(y_train, y_pred_train), "TRAIN")
exp.update_metric("ep_acc", acc(y, y_pred), "VAL")
exp.update_metric("ep_pre", precision_macro(y_train, y_pred_train),
"TRAIN")
exp.update_metric("ep_pre", precision_macro(y, y_pred), "VAL")
exp.update_metric("ep_rec", recall_macro(y_train, y_pred_train),
"TRAIN")
exp.update_metric("ep_rec", recall_macro(y, y_pred), "VAL")
print()
epoch_log = exp.log_metrics(
["ep_loss", "ep_f1", "ep_acc", "ep_pre", "ep_rec"])
print(epoch_log)
exp.update_value("epoch", epoch_log)
exp.save()
else:
print("epoch: {}, train loss: {}, val loss: {}, f1: {}".format(
epoch, train_loss.item(), val_loss.item(), f1_macro(y,
y_pred)))
# Save the model if the validation loss is the best we've seen so far.
if not best_loss or val_loss < best_loss:
best_loss = val_loss
trainer.best_val_loss = best_loss
trainer.acc = acc(y, y_pred)
trainer.f1 = f1_macro(y, y_pred)
trainer.precision = precision_macro(y, y_pred)
trainer.recall = recall_macro(y, y_pred)
trainer.checkpoint(name=opts.name, verbose=False)
if early_stopping.stop(val_loss):
print("Early Stopping...")
break
print("\n")
# return trainer.best_val_loss, trainer.acc, trainer.f1, trainer.precision, trainer.recall
#################
# Test
#################
_, y_test_, y_test_predicted = trainer.eval_epoch(test_set=True)
f1_test = f1_macro(y_test_, y_test_predicted)
acc_test = acc(y_test_, y_test_predicted)
print("#" * 33)
print("F1 for test set: {}".format(f1_test))
print("Accuracy for test set: {}".format(acc_test))
print("#" * 33)
return trainer.best_val_loss, trainer.acc, trainer.f1, trainer.precision, trainer.recall, f1_test, acc_test
#####################################################################
# Load Trained Model
#####################################################################
model.to(device)
print(model)
#####################################################################
# Evaluate Trained Model on test set & Calculate predictions
#####################################################################
labels, predicted, posteriors, attentions, texts = test_clf(model=model, iterator=test_loader,
device=device)
# avg_posteriors = numpy.mean(numpy.stack(posteriors, axis=0), axis=0)
# predictions = numpy.argmax(avg_posteriors, 1)
accuracy = acc(labels, predicted)
f1 = f1_macro(labels, predicted)
print("{}".format(checkpoint_name))
print("Test F1: {}".format(f1))
print("")
# words = []
# for sample in texts:
# sample_words = []
# if 0 in sample:
# sample = numpy.delete(sample, numpy.where(sample == 0))
# for id in sample:
# sample_words.append(idx2word[id])
# words.append(sample_words)
#
# # json for neat vision
def sent_clf_no_aux(dataset, config, opts, transfer=False):
from logger.experiment import Experiment
opts.name = config["name"]
X_train, y_train, X_val, y_val = dataset
vocab = None
if transfer:
opts.transfer = config["pretrained_lm"]
checkpoint = load_checkpoint(opts.transfer)
config["vocab"].update(checkpoint["config"]["vocab"])
dict_pattern_rename(checkpoint["config"]["model"],
{"rnn_": "bottom_rnn_"})
config["model"].update(checkpoint["config"]["model"])
vocab = checkpoint["vocab"]
####################################################################
# Data Loading and Preprocessing
####################################################################
if config["preprocessor"] == "twitter":
preprocessor = twitter_preprocessor()
else:
preprocessor = None
print("Building training dataset...")
train_set = ClfDataset(X_train,
y_train,
vocab=vocab,
preprocess=preprocessor,
vocab_size=config["vocab"]["size"],
seq_len=config["data"]["seq_len"])
print("Building validation dataset...")
val_set = ClfDataset(X_val,
y_val,
seq_len=train_set.seq_len,
preprocess=preprocessor,
vocab=train_set.vocab)
src_lengths = [len(x) for x in train_set.data]
val_lengths = [len(x) for x in val_set.data]
# select sampler & dataloader
train_sampler = BucketBatchSampler(src_lengths, config["batch_size"], True)
val_sampler = SortedSampler(val_lengths)
val_sampler_train = SortedSampler(src_lengths)
train_loader = DataLoader(train_set,
batch_sampler=train_sampler,
num_workers=opts.cores,
collate_fn=ClfCollate())
val_loader = DataLoader(val_set,
sampler=val_sampler,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate())
val_loader_train_dataset = DataLoader(train_set,
sampler=val_sampler_train,
batch_size=config["batch_size"],
num_workers=opts.cores,
collate_fn=ClfCollate())
####################################################################
# Model
####################################################################
ntokens = len(train_set.vocab)
model = NaiveClassifier(ntokens,
len(set(train_set.labels)),
attention=config["model"]["has_att"],
**config["model"])
model.to(opts.device)
criterion = nn.CrossEntropyLoss()
if config["gu"]:
embed_parameters = filter(lambda p: p.requires_grad,
model.embed.parameters())
bottom_parameters = filter(lambda p: p.requires_grad,
chain(model.bottom_rnn.parameters()))
if config["model"]["has_att"]:
top_parameters = filter(
lambda p: p.requires_grad,
chain(model.attention.parameters(),
model.classes.parameters()))
else:
top_parameters = filter(lambda p: p.requires_grad,
model.classes.parameters())
embed_optimizer = Adam(embed_parameters)
rnn_optimizer = Adam(bottom_parameters)
top_optimizer = Adam(top_parameters)
# Trainer: responsible for managing the training process
trainer = SentClfNoAuxTrainer(
model,
train_loader,
val_loader,
criterion, [embed_optimizer, rnn_optimizer, top_optimizer],
config,
opts.device,
valid_loader_train_set=val_loader_train_dataset,
unfreeze_embed=config["unfreeze_embed"],
unfreeze_rnn=config["unfreeze_rnn"])
else:
parameters = filter(lambda p: p.requires_grad, model.parameters())
optimizer = optim.Adam(parameters, lr=config["top_lr"])
# Trainer: responsible for managing the training process
trainer = SentClfNoAuxTrainer(
model,
train_loader,
val_loader,
criterion, [optimizer],
config,
opts.device,
valid_loader_train_set=val_loader_train_dataset)
####################################################################
# Experiment: logging and visualizing the training process
####################################################################
exp = Experiment(opts.name,
config,
src_dirs=opts.source,
output_dir=EXP_DIR)
exp.add_metric("ep_loss", "line", "epoch loss class", ["TRAIN", "VAL"])
exp.add_metric("ep_f1", "line", "epoch f1", ["TRAIN", "VAL"])
exp.add_metric("ep_acc", "line", "epoch accuracy", ["TRAIN", "VAL"])
exp.add_value("epoch", title="epoch summary")
exp.add_value("progress", title="training progress")
####################################################################
# Resume Training from a previous checkpoint
####################################################################
if transfer:
print("Transferring Encoder weights ...")
dict_pattern_rename(checkpoint["model"], {"encoder": "bottom_rnn"})
load_state_dict_subset(model, checkpoint["model"])
print(model)
####################################################################
# Training Loop
####################################################################
best_loss = None
early_stopping = EarlyStopping("min", config["patience"])
for epoch in range(1, config["epochs"] + 1):
train_loss = trainer.train_epoch()
val_loss, y, y_pred = trainer.eval_epoch(val_set=True)
_, y_train, y_pred_train = trainer.eval_epoch(train_set=True)
# Calculate accuracy and f1-macro on the evaluation set
exp.update_metric("ep_loss", train_loss.item(), "TRAIN")
exp.update_metric("ep_loss", val_loss.item(), "VAL")
exp.update_metric("ep_f1", f1_macro(y_train, y_pred_train), "TRAIN")
exp.update_metric("ep_f1", f1_macro(y, y_pred), "VAL")
exp.update_metric("ep_acc", acc(y_train, y_pred_train), "TRAIN")
exp.update_metric("ep_acc", acc(y, y_pred), "VAL")
print()
epoch_log = exp.log_metrics(["ep_loss", "ep_f1", "ep_acc"])
print(epoch_log)
exp.update_value("epoch", epoch_log)
###############################################################
# Unfreezing the model after X epochs
###############################################################
# Save the model if the val loss is the best we've seen so far.
if not best_loss or val_loss < best_loss:
best_loss = val_loss
trainer.best_acc = acc(y, y_pred)
trainer.best_f1 = f1_macro(y, y_pred)
trainer.checkpoint(name=opts.name)
if early_stopping.stop(val_loss):
print("Early Stopping (according to cls loss)....")
break
print("\n" * 2)
return best_loss, trainer.best_acc, trainer.best_f1