def train(self, train_df, target_df):
oof = np.zeros((len(train_df), self.cfg.model.n_classes))
cv = 0
for fold_, col in enumerate(self.fold_df.columns):
print(
f'\n========================== FOLD {fold_} ... ==========================\n'
)
logging.debug(
f'\n========================== FOLD {fold_} ... ==========================\n'
)
trn_x, val_x = train_df[self.fold_df[col] == 0], train_df[
self.fold_df[col] > 0]
val_y = target_df[self.fold_df[col] > 0].values
train_loader = factory.get_dataloader(trn_x, self.cfg.data.train)
valid_loader = factory.get_dataloader(val_x, self.cfg.data.valid)
model = factory.get_nn_model(self.cfg).to(device)
criterion = factory.get_loss(self.cfg)
optimizer = factory.get_optim(self.cfg, model.parameters())
scheduler = factory.get_scheduler(self.cfg, optimizer)
best_epoch = -1
best_val_score = -np.inf
mb = master_bar(range(self.cfg.model.epochs))
train_loss_list = []
val_loss_list = []
val_score_list = []
for epoch in mb:
start_time = time.time()
model, avg_loss = self._train_epoch(model, train_loader,
criterion, optimizer, mb)
valid_preds, avg_val_loss = self._val_epoch(
model, valid_loader, criterion)
val_score = factory.get_metrics(self.cfg.common.metrics.name)(
val_y, valid_preds)
train_loss_list.append(avg_loss)
val_loss_list.append(avg_val_loss)
val_score_list.append(val_score)
if self.cfg.scheduler.name != 'ReduceLROnPlateau':
scheduler.step()
elif self.cfg.scheduler.name == 'ReduceLROnPlateau':
scheduler.step(avg_val_loss)
elapsed = time.time() - start_time
mb.write(
f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s'
)
logging.debug(
f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s'
)
if val_score > best_val_score:
best_epoch = epoch + 1
best_val_score = val_score
best_valid_preds = valid_preds
if self.cfg.model.multi_gpu:
best_model = model.module.state_dict()
else:
best_model = model.state_dict()
oof[val_x.index, :] = best_valid_preds
cv += best_val_score * self.fold_df[col].max()
torch.save(best_model,
f'../logs/{self.run_name}/weight_best_{fold_}.pt')
self._save_loss_png(train_loss_list, val_loss_list, val_score_list,
fold_)
print(f'\nEpoch {best_epoch} - val_score: {best_val_score:.4f}')
logging.debug(
f'\nEpoch {best_epoch} - val_score: {best_val_score:.4f}')
print('\n\n===================================\n')
print(f'CV: {cv:.6f}')
logging.debug(f'\n\nCV: {cv:.6f}')
print('\n===================================\n\n')
self.oof = oof.reshape(-1, 5)
return cv
def train_model(run_name, df, fold_df, cfg):
oof = np.zeros(len(df))
cv = 0
for fold_, col in enumerate(fold_df.columns):
print(f'\n========================== FOLD {fold_} ... ==========================\n')
logging.debug(f'\n========================== FOLD {fold_} ... ==========================\n')
trn_x, val_x = df[fold_df[col] == 0], df[fold_df[col] > 0]
val_y = val_x.loc[:33126][cfg.common.target]
val_org_idx = np.where(val_x.index <= 33126)[0]
train_loader = factory.get_dataloader(trn_x, cfg.data.train)
valid_loader = factory.get_dataloader(val_x, cfg.data.valid)
model = factory.get_model(cfg).to(device)
criterion = factory.get_loss(cfg)
optimizer = factory.get_optim(cfg, model.parameters())
scheduler = factory.get_scheduler(cfg, optimizer)
best_epoch = -1
best_val_score = -np.inf
mb = master_bar(range(cfg.data.train.epochs))
train_loss_list = []
val_loss_list = []
val_score_list = []
for epoch in mb:
start_time = time.time()
model, avg_loss = train_epoch(model, train_loader, criterion, optimizer, mb, cfg)
valid_preds, avg_val_loss = val_epoch(model, valid_loader, criterion, cfg)
val_score = factory.get_metrics(cfg.common.metrics.name)(val_y, valid_preds[val_org_idx])
train_loss_list.append(avg_loss)
val_loss_list.append(avg_val_loss)
val_score_list.append(val_score)
if cfg.scheduler.name != 'ReduceLROnPlateau':
scheduler.step()
elif cfg.scheduler.name == 'ReduceLROnPlateau':
scheduler.step(avg_val_loss)
elapsed = time.time() - start_time
mb.write(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s')
logging.debug(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s')
if val_score > best_val_score:
best_epoch = epoch + 1
best_val_score = val_score
best_valid_preds = valid_preds
if cfg.model.multi_gpu:
best_model = model.module.state_dict()
else:
best_model = model.state_dict()
oof[val_x.index] = best_valid_preds.reshape(-1)
cv += best_val_score * fold_df[col].max()
torch.save(best_model, f'../logs/{run_name}/weight_best_{fold_}.pt')
save_png(run_name, cfg, train_loss_list, val_loss_list, val_score_list, fold_)
print(f'\nEpoch {best_epoch} - val_score: {best_val_score:.4f}')
logging.debug(f'\nEpoch {best_epoch} - val_score: {best_val_score:.4f}')
print('\n\n===================================\n')
print(f'CV: {cv:.6f}')
logging.debug(f'\n\nCV: {cv:.6f}')
print('\n===================================\n\n')
result = {
'cv': cv,
}
np.save(f'../logs/{run_name}/oof.npy', oof)
return result
def train_cnn(run_name, trn_x, val_x, trn_y, val_y, cfg):
train_loader = factory.get_dataloader(trn_x, trn_y, cfg.data.train)
valid_loader = factory.get_dataloader(val_x, val_y, cfg.data.valid)
model = factory.get_model(cfg).to(device)
criterion = factory.get_loss(cfg)
optimizer = factory.get_optim(cfg, model.parameters())
scheduler = factory.get_scheduler(cfg, optimizer)
best_epoch = -1
best_val_score = -np.inf
best_coef = []
mb = master_bar(range(cfg.data.train.epochs))
train_loss_list = []
val_loss_list = []
val_score_list = []
initial_coef = [0.5, 1.5, 2.5, 3.5, 4.5]
for epoch in mb:
start_time = time.time()
model, avg_loss = train_epoch(model, train_loader, criterion, optimizer, mb, cfg)
valid_preds, avg_val_loss = val_epoch(model, valid_loader, criterion, cfg)
if cfg.model.n_classes > 1:
val_score = quadratic_weighted_kappa(val_y, valid_preds.argmax(1))
cm = confusion_matrix(val_y, valid_preds.argmax(1))
else:
optR = QWKOptimizedRounder()
optR.fit(valid_preds.copy(), val_y, initial_coef)
coef = optR.coefficients()
valid_preds_class = optR.predict(valid_preds.copy(), coef)
val_score = quadratic_weighted_kappa(val_y, valid_preds_class)
cm = confusion_matrix(val_y, valid_preds_class)
# cm = np.round(cm / np.sum(cm, axis=1, keepdims=True), 3)
train_loss_list.append(avg_loss)
val_loss_list.append(avg_val_loss)
val_score_list.append(val_score)
if cfg.scheduler.name != 'ReduceLROnPlateau':
scheduler.step()
elif cfg.scheduler.name == 'ReduceLROnPlateau':
scheduler.step(avg_val_loss)
elapsed = time.time() - start_time
mb.write(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s')
logging.debug(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} val_score: {val_score:.4f} time: {elapsed:.0f}s')
if val_score > best_val_score:
best_epoch = epoch + 1
best_val_score = val_score
best_valid_preds = valid_preds
if cfg.model.multi_gpu:
best_model = model.module.state_dict()
else:
best_model = model.state_dict()
if cfg.model.n_classes == 1:
best_coef = coef
best_cm = cm
print('\n\nCONFUSION MATRIX')
logging.debug('\n\nCONFUSION MATRIX')
print(cm)
logging.debug(cm)
print('\n\n===================================\n')
print(f'CV: {best_val_score:.6f}')
print(f'BEST EPOCH: {best_epoch}')
logging.debug(f'\n\nCV: {best_val_score:.6f}')
logging.debug(f'BEST EPOCH: {best_epoch}\n\n')
print('\n===================================\n\n')
result = {
'cv': best_val_score,
}
np.save(f'../logs/{run_name}/oof.npy', best_valid_preds)
np.save(f'../logs/{run_name}/best_coef.npy', best_coef)
torch.save(best_model, f'../logs/{run_name}/weight_best.pt')
save_png(run_name, cfg, train_loss_list, val_loss_list, val_score_list)
return result
def train(self, train_df, target_df):
oof = np.zeros((len(train_df), self.cfg.model.n_classes))
cv = 0
for fold_, col in enumerate(self.fold_df.columns):
print(f'\n========================== FOLD {fold_ + 1} / {self.n_splits} ... ==========================\n')
logging.debug(f'\n========================== FOLD {fold_ + 1} / {self.n_splits} ... ==========================\n')
trn_x, val_x = train_df[self.fold_df[col] == 0], train_df[self.fold_df[col] > 0]
val_y = target_df[self.fold_df[col] > 0].values
if 'transformer' in self.cfg.model.backbone:
usecols = ['user_id', 'content_id', 'task_container_id', 'timestamp', 'prior_question_elapsed_time',
'prior_question_had_explanation', 'part', 'answered_correctly', 'te_content_id_by_answered_correctly',
'answered_correctly_avg_u']
group = (trn_x[usecols]
.groupby('user_id')
.apply(lambda r: (r['content_id'].values,
r['answered_correctly'].values,
r['timestamp'].values,
r['prior_question_elapsed_time'].values,
r['part'].values,
r['te_content_id_by_answered_correctly'].values,
r['task_container_id'].values)))
train_loader = factory.get_transformer_dataloader(samples=group, df=trn_x, cfg=self.cfg.data.train)
valid_loader = factory.get_transformer_dataloader(samples=group, df=val_x, cfg=self.cfg.data.valid)
else:
train_loader = factory.get_dataloader(trn_x, self.cfg.data.train)
valid_loader = factory.get_dataloader(val_x, self.cfg.data.valid)
model = factory.get_nn_model(self.cfg).to(device)
criterion = factory.get_loss(self.cfg)
optimizer = factory.get_optim(self.cfg, model.parameters())
scheduler = factory.get_scheduler(self.cfg, optimizer)
best_epoch = -1
best_val_score = -np.inf
mb = master_bar(range(self.cfg.model.epochs))
train_loss_list = []
val_loss_list = []
val_score_list = []
for epoch in mb:
start_time = time.time()
with detect_anomaly():
model, avg_loss = self._train_epoch(model, train_loader, criterion, optimizer, mb)
valid_preds, avg_val_loss = self._val_epoch(model, valid_loader, criterion)
val_score = factory.get_metrics(self.cfg.common.metrics.name)(val_y, valid_preds)
train_loss_list.append(avg_loss)
val_loss_list.append(avg_val_loss)
val_score_list.append(val_score)
if self.cfg.scheduler.name != 'ReduceLROnPlateau':
scheduler.step()
elif self.cfg.scheduler.name == 'ReduceLROnPlateau':
scheduler.step(avg_val_loss)
elapsed = time.time() - start_time
mb.write(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.6f} avg_val_loss: {avg_val_loss:.6f} val_score: {val_score:.6f} time: {elapsed:.0f}s')
logging.debug(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.6f} avg_val_loss: {avg_val_loss:.6f} val_score: {val_score:.6f} time: {elapsed:.0f}s')
if val_score > best_val_score:
best_epoch = epoch + 1
best_val_score = val_score
best_valid_preds = valid_preds
if self.cfg.model.multi_gpu:
best_model = model.module.state_dict()
else:
best_model = model.state_dict()
oof[val_x.index, :] = best_valid_preds
cv += best_val_score * self.fold_df[col].max()
torch.save(best_model, f'../logs/{self.run_name}/weight_best_{fold_}.pt')
# self._save_loss_png(train_loss_list, val_loss_list, val_score_list, fold_)
print(f'\nEpoch {best_epoch} - val_score: {best_val_score:.6f}')
logging.debug(f'\nEpoch {best_epoch} - val_score: {best_val_score:.6f}')
print('\n\n===================================\n')
print(f'CV: {cv:.6f}')
logging.debug(f'\n\nCV: {cv:.6f}')
print('\n===================================\n\n')
self.oof = oof
return cv
def train_ordinal_reg(run_name, trn_x, val_x, trn_y, val_y, cfg):
ordinal_val_preds = np.zeros_like(val_y)
for i, col in enumerate(trn_y.columns[1:]):
print(f'\n\n==================== {col} ====================')
logging.debug(f'\n\n==================== {col} ====================')
train_loader = factory.get_dataloader(trn_x, trn_y[col], cfg.data.train)
valid_loader = factory.get_dataloader(val_x, val_y[col], cfg.data.valid)
model = factory.get_model(cfg).to(device)
criterion = factory.get_loss(cfg)
optimizer = factory.get_optim(cfg, model.parameters())
scheduler = factory.get_scheduler(cfg, optimizer)
best_epoch = -1
best_val_loss = np.inf
mb = master_bar(range(cfg.data.train.epochs))
train_loss_list = []
val_loss_list = []
val_score_list = []
initial_coef = [0.5, 1.5, 2.5, 3.5, 4.5]
for epoch in mb:
start_time = time.time()
model, avg_loss = train_epoch(model, train_loader, criterion, optimizer, mb, cfg)
valid_preds, avg_val_loss = val_epoch(model, valid_loader, criterion, cfg)
train_loss_list.append(avg_loss)
val_loss_list.append(avg_val_loss)
if cfg.scheduler.name != 'ReduceLROnPlateau':
scheduler.step()
elif cfg.scheduler.name == 'ReduceLROnPlateau':
scheduler.step(avg_val_loss)
elapsed = time.time() - start_time
mb.write(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} time: {elapsed:.0f}s')
logging.debug(f'Epoch {epoch+1} - avg_train_loss: {avg_loss:.4f} avg_val_loss: {avg_val_loss:.4f} time: {elapsed:.0f}s')
if avg_val_loss < best_val_loss:
best_epoch = epoch + 1
best_val_loss = avg_val_loss
best_valid_preds = valid_preds
if cfg.model.multi_gpu:
best_model = model.module.state_dict()
else:
best_model = model.state_dict()
print(f'epoch: {best_epoch} loss: {best_val_loss}')
ordinal_val_preds[:, i] = 1 / (1 + np.exp(-1 * best_valid_preds))
np.save(f'../logs/{run_name}/oof_{col}.npy', best_valid_preds)
torch.save(best_model, f'../logs/{run_name}/weight_best_{col}.pt')
valid_preds = np.sum(ordinal_val_preds, axis=1)
val_y = (np.sum(val_y.values, axis=1) - 1).astype(int)
optR = QWKOptimizedRounder()
optR.fit(valid_preds.copy(), val_y, initial_coef)
best_coef = optR.coefficients()
valid_preds_class = optR.predict(valid_preds.copy(), best_coef)
best_val_score = quadratic_weighted_kappa(val_y, valid_preds_class)
cm = confusion_matrix(val_y, valid_preds_class)
print('\n\nCONFUSION MATRIX')
logging.debug('\n\nCONFUSION MATRIX')
print(cm)
logging.debug(cm)
print('\n\n===================================\n')
print(f'CV: {best_val_score:.6f}')
logging.debug(f'\n\nCV: {best_val_score:.6f}')
print('\n===================================\n\n')
result = {
'cv': best_val_score,
}
np.save(f'../logs/{run_name}/best_coef.npy', best_coef)
return result