def train(model, iterator, optimizer, criterion):
model.train()
for i, batch in enumerate(iterator):
words, x, is_heads, tags, y, seqlens = batch
_y = y # for monitoring
optimizer.zero_grad()
logits, y, _ = model(x, y) # logits: (N, T, VOCAB), y: (N, T)
logits = logits.view(-1, logits.shape[-1]) # (N*T, VOCAB)
y = y.view(-1) # (N*T,)
loss = criterion(logits, y)
loss.backward()
optimizer.step()
if i==0:
print("=====sanity check======")
print("words:", words[0])
print("x:", x.cpu().numpy()[0][:seqlens[0]])
print("tokens:", tokenizer.convert_ids_to_tokens(x.cpu().numpy()[0])[:seqlens[0]])
print("is_heads:", is_heads[0])
print("y:", _y.cpu().numpy()[0][:seqlens[0]])
print("tags:", tags[0])
print("seqlen:", seqlens[0])
print("=======================")
if i%10==0: # monitoring
print(f"step: {i}, loss: {loss.item()}")
def train(model, iterator, optimizer, criterion, sanity_check=False):
model.train()
print("=======================")
print("Training started at {}".format(time.asctime(time.localtime(time.time()))))
for i, batch in enumerate(iterator):
words, x, is_heads, tags, y, seqlens = batch
_y = y # for monitoring
optimizer.zero_grad()
logits, y, _ = model(x, y) # logits: (N, T, VOCAB), y: (N, T)
logits = logits.view(-1, logits.shape[-1]) # (N*T, VOCAB)
y = y.view(-1) # (N*T,)
loss = criterion(logits, y)
loss.backward()
optimizer.step()
if sanity_check:
if i==0:
print("=====sanity check======")
print("words:", words[0])
print("x:", x.cpu().numpy()[0][:seqlens[0]])
print("tokens:", tokenizer.convert_ids_to_tokens(x.cpu().numpy()[0])[:seqlens[0]])
print("is_heads:", is_heads[0])
print("y:", _y.cpu().numpy()[0][:seqlens[0]])
print("tags:", tags[0])
print("seqlen:", seqlens[0])
print("=======================")
if i%100==0: # monitoring
print(f"time: {time.asctime(time.localtime(time.time()))}, step: {i}, loss: {loss.item()}")
print(f"Finished {i} steps training at {time.asctime(time.localtime(time.time()))}\n")
return loss.item()
def train(model, iterator, optimizer, criterion):
model.train()
for i, batch in enumerate(iterator):
tokens_x_2d, entities_x_3d, triggers_y_2d, arguments_y_2d, seqlens_1d, is_heads_2d, words_2d, triggers_2d = batch
optimizer.zero_grad()
logits, y, y_hat = model(tokens_x_2d, entities_x_3d, triggers_y_2d)
logits = logits.view(-1, logits.shape[-1])
y = y.view(-1)
loss = criterion(logits, y)
nn.utils.clip_grad_norm_(model.parameters(), 1.0)
loss.backward()
optimizer.step()
if i == 0:
print("=====sanity check======")
print("tokens:", tokenizer.convert_ids_to_tokens(tokens_x_2d[0])[:seqlens_1d[0]])
print("entities_x_3d:", entities_x_3d[0][:seqlens_1d[0]])
print("is_heads:", is_heads_2d[0])
print("triggers:", triggers_2d[0])
print("triggers_y:", triggers_y_2d[0][:seqlens_1d[0]])
print('triggers_y_hat:', y_hat.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print("seqlen:", seqlens_1d[0])
print("=======================")
if i % 10 == 0: # monitoring
print("step: {}, loss: {}".format(i, loss.item()))
def train(model, iterator, optimizer, criterion):
model.train()
for i, batch in enumerate(iterator):
tokens_x_2d, entities_x_3d, postags_x_2d, triggers_y_2d, arguments_2d, seqlens_1d, head_indexes_2d, words_2d, triggers_2d = batch
optimizer.zero_grad()
trigger_logits, triggers_y_2d, trigger_hat_2d, argument_hidden, argument_keys = model.module.predict_triggers(
tokens_x_2d=tokens_x_2d,
entities_x_3d=entities_x_3d,
postags_x_2d=postags_x_2d,
head_indexes_2d=head_indexes_2d,
triggers_y_2d=triggers_y_2d,
arguments_2d=arguments_2d)
trigger_logits = trigger_logits.view(-1, trigger_logits.shape[-1])
trigger_loss = criterion(trigger_logits, triggers_y_2d.view(-1))
if len(argument_keys) > 0:
argument_logits, arguments_y_1d, argument_hat_1d, argument_hat_2d = model.module.predict_arguments(
argument_hidden, argument_keys, arguments_2d)
argument_loss = criterion(argument_logits, arguments_y_1d)
loss = trigger_loss + 2 * argument_loss
if i == 0:
print("=====sanity check for arguments======")
print('arguments_y_1d:', arguments_y_1d)
print("arguments_2d[0]:", arguments_2d[0]['events'])
print("argument_hat_2d[0]:", argument_hat_2d[0]['events'])
print("=======================")
else:
loss = trigger_loss
nn.utils.clip_grad_norm_(model.parameters(), 1.0)
loss.backward()
optimizer.step()
if i == 0:
print("=====sanity check======")
print(
"tokens_x_2d[0]:",
tokenizer.convert_ids_to_tokens(
tokens_x_2d[0])[:seqlens_1d[0]])
print("entities_x_3d[0]:", entities_x_3d[0][:seqlens_1d[0]])
print("postags_x_2d[0]:", postags_x_2d[0][:seqlens_1d[0]])
print("head_indexes_2d[0]:", head_indexes_2d[0][:seqlens_1d[0]])
print("triggers_2d[0]:", triggers_2d[0])
print("triggers_y_2d[0]:",
triggers_y_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print('trigger_hat_2d[0]:',
trigger_hat_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print("seqlens_1d[0]:", seqlens_1d[0])
print("arguments_2d[0]:", arguments_2d[0])
print("=======================")
if i % 10 == 0: # monitoring
print("step: {}, loss: {}".format(i, loss.item()))
def train(model, iterator, optimizer, criterio):
model.train()
# batch_size 24 step 600
for i, batch in enumerate(iterator):
#
tokens_x_2d, entities_x_3d, postags_x_2d, triggers_y_2d, arguments_2d, seqlens_1d, head_indexes_2d, words_2d, triggers_2d, \
pre_sent_tokens_x, next_sent_tokens_x, pre_sent_len, next_sent_len, maxlen = batch
# maxlen = max(seqlens_1d)
# pre_sent_len_max = max(pre_sent_len)
# next_sent_len_max = max(next_sent_len)
pre_sent_flags = []
next_sent_flags = []
pre_sent_len_mat = []
next_sent_len_mat = []
for i in pre_sent_len:
tmp = [[1] * 768] * i + [[0] * 768] * (maxlen - i)
pre_sent_flags.append(tmp)
pre_sent_len_mat.append([i] * 768)
for i in next_sent_len:
tmp = [[1] * 768] * i + [[0] * 768] * (maxlen - i)
next_sent_flags.append(tmp)
next_sent_len_mat.append([i] * 768)
optimizer.zero_grad()
# trigger_logits, triggers_y_2d, trigger_hat_2d, argument_hidden, argument_keys = model.module.predict_triggers(tokens_x_2d=tokens_x_2d, entities_x_3d=entities_x_3d,
trigger_logits, triggers_y_2d, trigger_hat_2d = model.predict_triggers(
tokens_x_2d=tokens_x_2d,
entities_x_3d=entities_x_3d,
postags_x_2d=postags_x_2d,
head_indexes_2d=head_indexes_2d,
triggers_y_2d=triggers_y_2d,
arguments_2d=arguments_2d,
pre_sent_tokens_x=pre_sent_tokens_x,
next_sent_tokens_x=next_sent_tokens_x,
pre_sent_flags=pre_sent_flags,
next_sent_flags=next_sent_flags,
pre_sent_len_mat=pre_sent_len_mat,
next_sent_len_mat=next_sent_len_mat)
# print("trigger_logits 1 " + "="*100)
# print(trigger_logits.shape)
trigger_logits = trigger_logits.view(-1, trigger_logits.shape[-1])
print("trigger_check " + "=" * 100)
print(torch.argmax(trigger_logits, 1).to('cpu').numpy().tolist())
print(triggers_y_2d.view(1, -1).to('cpu').numpy().tolist())
# print("trigger_logits 2 " + "="*100)
# print(trigger_logits.shape)
# print("triggers_y_2d 1 " + "="*100)
# print(triggers_y_2d.shape)
# print("triggers_y_2d 2 " + "=" * 100)
# print(triggers_y_2d.view(-1).shape)
# 这里计算损失函数很有意思，本来model输出的结果trigger_logits： batch_size * sentence_len * 分类数 ，标准结果是 batch_size * sentence_len； 这里句子中每个词对应一个标签
# 然后直接将 batch_size和sentence合在一起了，不再区分词是哪个句子中的，直接计算整个batch中词分类的效果
# CrossEntropyLoss的输入： 预测结果（2维）： batch_size * 分类数 标准结果（一维）： batch_size ; 当然具体在这里不是batch_size 而是 batch_size * sentence_len
trigger_loss = criterion(trigger_logits, triggers_y_2d.view(-1))
# print("triggers_loss 1 " + "=" * 100)
# print(trigger_loss.shape)
loss = trigger_loss
# 梯度裁剪
# nn.utils.clip_grad_norm_(model.parameters(), 1.0)
loss.backward()
optimizer.step()
if i == 0:
print("=====sanity check======")
print(
"tokens_x_2d[0]:",
tokenizer.convert_ids_to_tokens(
tokens_x_2d[0])[:seqlens_1d[0]])
print("entities_x_3d[0]:", entities_x_3d[0][:seqlens_1d[0]])
print("postags_x_2d[0]:", postags_x_2d[0][:seqlens_1d[0]])
print("head_indexes_2d[0]:", head_indexes_2d[0][:seqlens_1d[0]])
print("triggers_2d[0]:", triggers_2d[0])
print("triggers_y_2d[0]:",
triggers_y_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print('trigger_hat_2d[0]:',
trigger_hat_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print("seqlens_1d[0]:", seqlens_1d[0])
print("arguments_2d[0]:", arguments_2d[0])
print("=======================")
if i % 10 == 0: # monitoring
print("step: {}, loss: {}".format(i, loss.item()))
def train(model, iterator, optimizer, criterion):
model.train()
decision_criterion = nn.BCEWithLogitsLoss()
for i, batch in enumerate(iterator):
tokens_x_2d, entities_x_3d, postags_x_2d, triggers_y_2d, arguments_2d, seqlens_1d, head_indexes_2d, words_2d, triggers_2d = batch
optimizer.zero_grad()
trigger_logits, triggers_y_2d, trigger_hat_2d, argument_hidden, argument_keys, trigger_info, auxiliary_feature = model.module.predict_triggers(tokens_x_2d=tokens_x_2d, entities_x_3d=entities_x_3d,
postags_x_2d=postags_x_2d, head_indexes_2d=head_indexes_2d,
triggers_y_2d=triggers_y_2d, arguments_2d=arguments_2d)
trigger_logits = trigger_logits.view(-1, trigger_logits.shape[-1])
trigger_loss = criterion(trigger_logits, triggers_y_2d.view(-1))
loss = trigger_loss
# if len(argument_keys) > 0:
# argument_logits, arguments_y_1d, argument_hat_1d, argument_hat_2d = model.module.predict_arguments(argument_hidden, argument_keys, arguments_2d)
# argument_loss = criterion(argument_logits, arguments_y_1d)
# input('Look at batch shape')
# print(arguments_y_1d.shape)
# input('The shape of argument y 1d')
# loss = trigger_loss + 2 * argument_loss
# if i == 0:
# print("=====sanity check for arguments======")
# print('arguments_y_1d:', arguments_y_1d)
# print("arguments_2d[0]:", arguments_2d[0]['events'])
# print("argument_hat_2d[0]:", argument_hat_2d[0]['events'])
# print("=======================")
# else:
# loss = trigger_loss
for module_arg in ARGUMENTS:
if len(argument_keys) > 0:
argument_logits, arguments_y_1d, argument_hat_1d, argument_hat_2d = model.module.module_predict_arguments(argument_hidden, argument_keys, arguments_2d, module_arg)
argument_loss = criterion(argument_logits, arguments_y_1d)
loss += 2 * argument_loss
# meta classifier
module_decisions_logit, module_decisions_y, argument_hat_2d = model.module.meta_classifier(argument_keys, arguments_2d, trigger_info, argument_logits, argument_hat_1d, auxiliary_feature, module_arg)
module_decisions_logit = module_decisions_logit.view(-1)
# print('Module decision logit \n {}'.format(module_decisions_logit))
# print('Module decision true \n {}'.format(module_decisions_y))
# print('module decision logit shape={}'.format(module_decisions_logit.shape))
# print('module decision true shape={}'.format(module_decisions_y.shape))
# input('')
decision_loss = decision_criterion(module_decisions_logit, module_decisions_y)
loss += 2 * decision_loss
if i == 0:
print("=====sanity check for arguments======")
print('arguments_y_1d:', arguments_y_1d)
print("arguments_2d[0]:", arguments_2d[0]['events'])
print("argument_hat_2d[0]:", argument_hat_2d[0]['events'])
print("module decision y = {}".format(module_decisions_y))
print("module decision pred = {}".format(torch.round(torch.sigmoid(module_decisions_logit))))
print("=======================")
#else:
#loss = trigger_loss
nn.utils.clip_grad_norm_(model.parameters(), 1.0)
loss.backward()
optimizer.step()
if i == 0:
print("=====sanity check======")
print("tokens_x_2d[0]:", tokenizer.convert_ids_to_tokens(tokens_x_2d[0])[:seqlens_1d[0]])
print("entities_x_3d[0]:", entities_x_3d[0][:seqlens_1d[0]])
print("postags_x_2d[0]:", postags_x_2d[0][:seqlens_1d[0]])
print("head_indexes_2d[0]:", head_indexes_2d[0][:seqlens_1d[0]])
print("triggers_2d[0]:", triggers_2d[0])
print("triggers_y_2d[0]:", triggers_y_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print('trigger_hat_2d[0]:', trigger_hat_2d.cpu().numpy().tolist()[0][:seqlens_1d[0]])
print("seqlens_1d[0]:", seqlens_1d[0])
print("arguments_2d[0]:", arguments_2d[0])
print("=======================")
if i % 100 == 0: # monitoring
print("step: {}, loss: {}".format(i, loss.item()))