async def _custom_accuracy(self, examples, features, dataset, prefix=""):
if not os.path.exists(self.parent.config.output_dir
) and self.parent.config.local_rank in [-1, 0]:
os.makedirs(self.parent.config.output_dir)
self.parent.config.eval_batch_size = (
self.parent.config.per_gpu_eval_batch_size *
max(1, self.parent.config.n_gpu))
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(
dataset,
sampler=eval_sampler,
batch_size=self.parent.config.eval_batch_size,
)
# multi-gpu evaluate
if self.parent.config.n_gpu > 1 and not isinstance(
self.model, torch.nn.DataParallel):
self.model = torch.nn.DataParallel(self.model)
# Eval
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", self.parent.config.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
self.model.eval()
batch = tuple(t.to(self.parent.config.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if self.parent.config.model_type in [
"xlm",
"roberta",
"distilbert",
"camembert",
]:
del inputs["token_type_ids"]
feature_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if self.parent.config.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(self.model, "config") and hasattr(
self.model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
self.parent.config.lang_id).to(
self.parent.config.device)
})
outputs = self.model(**inputs)
for i, feature_index in enumerate(feature_indices):
eval_feature = features[feature_index.item()]
unique_id = int(eval_feature.unique_id)
output = [self.to_list(output[i]) for output in outputs]
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(
" Evaluation done in total %f secs (%f sec per example)",
evalTime,
evalTime / len(dataset),
)
# Compute predictions
output_prediction_file = os.path.join(
self.parent.config.output_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
self.parent.config.output_dir,
"nbest_predictions_{}.json".format(prefix),
)
# XLNet and XLM use a more complex post-processing procedure
if self.parent.config.model_type in ["xlnet", "xlm"]:
start_n_top = (self.model.config.start_n_top if hasattr(
self.model, "config") else
self.model.module.config.start_n_top)
end_n_top = (self.model.config.end_n_top if hasattr(
self.model, "config") else self.model.module.config.end_n_top)
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
self.parent.config.n_best_size,
self.parent.config.max_answer_length,
output_prediction_file,
output_nbest_file,
None,
start_n_top,
end_n_top,
False,
self.tokenizer,
True,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
self.parent.config.n_best_size,
self.parent.config.max_answer_length,
self.parent.config.do_lower_case,
output_prediction_file,
output_nbest_file,
None,
True,
False,
self.parent.config.null_score_diff_threshold,
self.tokenizer,
)
return predictions
def evaluate(args, model, tokenizer, prefix="", calibration=False):
dataset, examples, features = load_and_cache_examples(args,
tokenizer,
evaluate=True,
output_examples=True)
dataset_cached = "./dataset_cached"
if not os.path.exists(dataset_cached):
os.makedirs(dataset_cached)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
calibation_iteration = int(
(len(dataset) * 0.05 + args.eval_batch_size - 1) /
args.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1:
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
print(" Batch size = %d" % args.eval_batch_size)
if args.mkldnn_eval:
from torch.utils import mkldnn as mkldnn_utils
model = mkldnn_utils.to_mkldnn(model)
print(model)
all_results = []
evalTime = 0
nb_eval_steps = 0
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(args.device) for t in batch)
if calibration and nb_eval_steps >= calibation_iteration:
break
with torch.no_grad():
inputs = {'input_ids': batch[0], 'attention_mask': batch[1]}
if args.model_type != 'distilbert':
inputs[
'token_type_ids'] = None if args.model_type == 'xlm' else batch[
2] # XLM don't use segment_ids
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ['xlnet', 'xlm']:
inputs.update({'cls_index': batch[4], 'p_mask': batch[5]})
if nb_eval_steps >= args.warmup:
start_time = timeit.default_timer()
outputs = model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
if nb_eval_steps >= args.warmup:
evalTime += (timeit.default_timer() - start_time)
nb_eval_steps += 1
if args.iter > 0 and nb_eval_steps >= (args.warmup + args.iter):
break
if nb_eval_steps >= args.warmup:
perf = (nb_eval_steps - args.warmup) * args.eval_batch_size / evalTime
if args.eval_batch_size == 1:
print('Latency: %.3f ms' % (evalTime /
(nb_eval_steps - args.warmup) * 1000))
print("Evaluation done in total %f secs (Throughput: %f samples/sec)" %
(evalTime, perf))
else:
logger.info(
"*****no performance, please check dataset length and warmup number *****"
)
# Compute predictions
output_prediction_file = os.path.join(dataset_cached,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
dataset_cached, "nbest_predictions_{}.json".format(prefix))
if args.version_2_with_negative:
output_null_log_odds_file = os.path.join(
dataset_cached, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ['xlnet', 'xlm']:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples, features, all_results, args.n_best_size,
args.max_answer_length, output_prediction_file, output_nbest_file,
output_null_log_odds_file, start_n_top, end_n_top,
args.version_2_with_negative, tokenizer, args.verbose_logging)
elif not calibration and args.iter == 0:
predictions = compute_predictions_logits(
examples, features, all_results, args.n_best_size,
args.max_answer_length, args.do_lower_case, output_prediction_file,
output_nbest_file, output_null_log_odds_file, args.verbose_logging,
args.version_2_with_negative, args.null_score_diff_threshold)
# Compute the F1 and exact scores.
if not calibration and args.iter == 0:
results = squad_evaluate(examples, predictions)
bert_task_acc_keys = ['best_f1', 'f1', 'mcc', 'spearmanr', 'acc']
for key in bert_task_acc_keys:
if key in results.keys():
acc = results[key]
break
print("Accuracy: %.5f" % acc)
else:
results = None
return results, perf
def evaluate(args, model, tokenizer, device, prefix=""):
eval_dataset, examples, features = data.load_and_cache_examples(
args.validation,
tokenizer,
args,
evaluate=True,
output_examples=True,
)
eval_dataloader = data.get_dataloader(eval_dataset,
args.per_gpu_eval_batch_size,
evaluate=True)
all_results = []
start_time = timeit.default_timer()
eval_batches = 0
for batch in eval_dataloader:
model.eval()
batch = tuple(t.to(device) for t in batch)
eval_batches += 1
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if args.model_type in [
"xlm", "roberta", "distilbert", "camembert"
]:
del inputs["token_type_ids"]
feature_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(
model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
args.lang_id).to(device)
})
outputs = model(**inputs)
for i, feature_index in enumerate(feature_indices):
# TODO: i and feature_index are the same number! Simplify by removing enumerate?
eval_feature = features[feature_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)",
evalTime,
evalTime / (eval_batches * args.per_gpu_eval_batch_size))
# Compute predictions
output_prediction_file = os.path.join(args.output_data_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
args.output_data_dir, "nbest_predictions_{}.json".format(prefix))
if args.has_unanswerable:
output_null_log_odds_file = os.path.join(
args.output_data_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = squad_metrics.compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_len,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.has_unanswerable,
tokenizer,
logger.level < logging.INFO,
)
else:
predictions = squad_metrics.compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_len,
args.uncased_model,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
logger.level < logging.INFO,
args.has_unanswerable,
args.null_score_diff_thresh,
tokenizer,
)
# Compute the F1 and exact scores.
results = squad_metrics.squad_evaluate(examples, predictions)
return results
def find_answer(self,
question,
context,
n_best_size=20,
max_answer_length=30,
full_sentence=False):
# heavily inspired by "https://github.com/huggingface/transformers/blob/v2.3.0/examples/run_squad.py#L212-L317"
example_id = '55555'
example = SquadExample(example_id, question, context, None, None, None)
features, dataset = squad_convert_examples_to_features(
[example],
self.tokenizer,
self.max_seq_length,
self.doc_stride,
self.max_query_length,
False,
return_dataset='pt')
sampler = SequentialSampler(dataset)
dataloader = DataLoader(dataset, sampler=sampler, batch_size=1)
all_results = []
for batch in dataloader:
self.model.eval()
batch = tuple(t.to(self.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if self.model_type in {"xlm", "roberta", "distilbert"}:
del inputs["token_type_ids"]
example_index = batch[3]
# XLNet and XLM use more arguments for their predictions
if self.model_type in {"xlnet", "xlm"}:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
outputs = self.model(**inputs)
output = [o.detach().cpu().tolist() for o in outputs]
unique_id = int(features[example_index].unique_id)
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
squad_result = SquadResult(
unique_id,
start_logits[0],
end_logits[0],
start_top_index=start_top_index[0],
end_top_index=end_top_index[0],
cls_logits=cls_logits[0],
)
else:
start_logits, end_logits = output
squad_result = SquadResult(unique_id, start_logits[0],
end_logits[0])
all_results.append(squad_result)
# XLNet and XLM use a more complex post-processing procedure
if self.model_type in {"xlnet", "xlm"}:
if hasattr(model, "config"):
start_n_top = self.model.config.start_n_top
end_n_top = self.model.config.end_n_top
else:
start_n_top = self.model.module.config.start_n_top
end_n_top = self.model.module.config.end_n_top
predictions = compute_predictions_log_probs(
[example],
features,
all_results,
n_best_size,
max_answer_length,
'/tmp/pred.out',
'/tmp/nbest.out',
'/tmp/null.out',
start_n_top,
end_n_top,
self.version_2_with_negative,
tokenizer,
self.verbose,
)
else:
predictions = compute_predictions_logits(
[example],
features,
all_results,
n_best_size,
max_answer_length,
self.do_lower_case,
'/tmp/pred.out',
'/tmp/nbest.out',
'/tmp/null.out',
self.verbose,
self.version_2_with_negative,
self.null_score_diff_threshold,
)
prediction = predictions[example_id]
logger.debug(f'found prediction: "{prediction}"')
# empty prediction indicates unknown answer
if not prediction:
logger.debug('empty prediction')
return None
if full_sentence:
doc = self.nlp(context)
for sent in doc.sents:
if prediction in sent.text:
prediction = sent.text
break
return prediction
def predict(self, id_, question, paragraph_texts, paragraph_scores):
# dataset, examples, features = load_and_cache_examples(self.args, self.tokenizer, evaluate=True, output_examples=True)
# processor = SquadV2Processor() if self.args.version_2_with_negative else SquadV1Processor()
# todo convert to single query examples
examples = create_inference_examples(question,
paragraph_texts,
paragraph_scores,
chinese=self.args.chinese,
tokenizer=self.tokenizer)
features, dataset = squad_convert_examples_to_features(
examples=examples,
tokenizer=self.tokenizer,
max_seq_length=self.args.max_seq_length,
doc_stride=self.args.doc_stride,
max_query_length=self.args.max_query_length,
is_training=not evaluate,
return_dataset="pt",
threads=self.args.threads,
tqdm_enabled=False)
# if not os.path.exists(args.output_dir) and args.local_rank in [-1, 0]:
# os.makedirs(args.output_dir)
self.args.eval_batch_size = self.args.per_gpu_eval_batch_size * max(
1, self.args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=self.args.eval_batch_size)
# multi-gpu evaluate
if self.args.n_gpu > 1 and not isinstance(self.model,
torch.nn.DataParallel):
self.model = torch.nn.DataParallel(self.model)
# Eval!
# logger.info("***** Running evaluation {} *****".format(prefix))
# logger.info(" Num examples = %d", len(dataset))
# logger.info(" Batch size = %d", args.eval_batch_size)
all_results = []
# start_time = timeit.default_timer()
for batch in eval_dataloader:
self.model.eval()
batch = tuple(t.to(self.args.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
# if args.model_type in ["xlm", "roberta", "distilbert", "camembert"]:
# del inputs["token_type_ids"]
feature_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
# if args.model_type in ["xlnet", "xlm"]:
# inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# # for lang_id-sensitive xlm models
# if hasattr(model, "config") and hasattr(model.config, "lang2id"):
# inputs.update(
# {"langs": (torch.ones(batch[0].shape, dtype=torch.int64) * args.lang_id).to(args.device)}
# )
outputs = self.model(**inputs)
for i, feature_index in enumerate(feature_indices):
eval_feature = features[feature_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
# Compute predictions
prefix = ""
output_prediction_file = os.path.join(
self.args.output_dir, "predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
self.args.output_dir, "nbest_predictions_{}.json".format(prefix))
if self.args.version_2_with_negative:
output_null_log_odds_file = os.path.join(
self.args.output_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if self.args.model_type in ["xlnet", "xlm"]:
start_n_top = self.model.config.start_n_top if hasattr(
self.model, "config") else self.model.module.config.start_n_top
end_n_top = self.model.config.end_n_top if hasattr(
self.model, "config") else self.model.module.config.end_n_top
answers, nbest_answers = compute_predictions_log_probs(
examples, features, all_results, self.args.n_best_size,
self.args.max_answer_length, output_prediction_file,
output_nbest_file, output_null_log_odds_file, start_n_top,
end_n_top, self.args.version_2_with_negative, self.tokenizer,
self.args.verbose_logging, self.args.chinese)
else:
answers, nbest_answers = compute_predictions_logits(
examples, features, all_results, self.args.n_best_size,
self.args.max_answer_length, self.args.do_lower_case,
output_prediction_file, output_nbest_file,
output_null_log_odds_file, self.args.verbose_logging,
self.args.version_2_with_negative,
self.args.null_score_diff_threshold, self.tokenizer,
self.args.chinese)
all_answers = []
for answer_id, ans in enumerate(answers):
ans_dict = {
"id": id_,
"answer": answers[ans][0],
"phrase_score": answers[ans][1],
"paragraph_score": paragraph_scores[answer_id],
}
all_answers.append(ans_dict)
return all_answers
def evaluate_ensemble(args, checkpoints, tokenizer, model_class, prefix=""):
dataset, examples, features = load_and_cache_examples(args, tokenizer, evaluate=True, output_examples=True)
if not os.path.exists(args.output_dir) and args.local_rank in [-1, 0]:
os.makedirs(args.output_dir)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset, sampler=eval_sampler, batch_size=args.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1 and not isinstance(model, torch.nn.DataParallel):
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", args.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
model_list = []
for ckpt in checkpoints:
logger.info("Evaluate the following fine_tuned_model: %s", ckpt)
model_list.append(model_class.from_pretrained(ckpt))
for batch in tqdm(eval_dataloader, desc="Evaluating"):
batch = tuple(t.to(args.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if args.model_type in ["xlm", "roberta", "distilbert"]:
del inputs["token_type_ids"]
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ["xlnet", "xlm"]:
raise NotImplementedError
# inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# # for lang_id-sensitive xlm models
# if hasattr(model, "config") and hasattr(model.config, "lang2id"):
# inputs.update(
# {"langs": (torch.ones(batch[0].shape, dtype=torch.int64) * args.lang_id).to(args.device)}
# )
outputs_list = []
for model in model_list:
model.to(args.device)
model.eval()
with torch.no_grad():
outputs = model(**inputs)
outputs_list.append(outputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
start_logits_list, end_logits_list = [], []
for outputs in outputs_list:
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
raise NotImplementedError
# start_logits = output[0]
# start_top_index = output[1]
# end_logits = output[2]
# end_top_index = output[3]
# cls_logits = output[4]
# result = SquadResult(
# unique_id,
# start_logits,
# end_logits,
# start_top_index=start_top_index,
# end_top_index=end_top_index,
# cls_logits=cls_logits,
# )
else:
start_logits, end_logits = output
start_logits_list.append(start_logits)
end_logits_list.append(end_logits)
if args.model_type in ["xlnet", "xlm"]:
raise NotImplementedError
else:
start_logits_list = np.array(start_logits_list)
end_logits_list = np.array(end_logits_list)
#Ensembling method (eg max/avg/etc)
start_logits = list(start_logits_list.mean(axis=0))
end_logits = list(end_logits_list.mean(axis=0))
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)", evalTime, evalTime / len(dataset))
# Compute predictions
output_prediction_file = os.path.join(args.output_dir, "predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(args.output_dir, "nbest_predictions_{}.json".format(prefix))
if args.version_2_with_negative:
output_null_log_odds_file = os.path.join(args.output_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
raise NotImplementedError
# start_n_top = model.config.start_n_top if hasattr(model, "config") else model.module.config.start_n_top
# end_n_top = model.config.end_n_top if hasattr(model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.version_2_with_negative,
tokenizer,
args.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
args.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
args.verbose_logging,
args.version_2_with_negative,
args.null_score_diff_threshold,
tokenizer,
)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
return results
def test_epoch_end(self, outputs):
example_indices = torch.cat([x["example_indices"] for x in outputs
]).detach().cpu().tolist()
start_logits = torch.cat([x["start_logits"]
for x in outputs]).detach().cpu().tolist()
end_logits = torch.cat([x["end_logits"]
for x in outputs]).detach().cpu().tolist()
if "cls_logits" in list(outputs[0].keys()):
start_top_index = torch.cat([
x["start_top_index"] for x in outputs
]).detach().cpu().tolist()
end_top_index = torch.cat([x["end_top_index"] for x in outputs
]).detach().cpu().tolist()
cls_logits = torch.cat([x["cls_logits"]
for x in outputs]).detach().cpu().tolist()
examples = self.trainer.datamodule.test_examples
features = self.trainer.datamodule.test_features
all_results = []
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index]
unique_id = int(eval_feature.unique_id)
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
from transformers.data.processors.squad import SquadResult
if "cls_logits" in list(outputs[0].keys()):
result = SquadResult(
unique_id,
start_logits[i],
end_logits[i],
start_top_index=start_top_index[i],
end_top_index=end_top_index[i],
cls_logits=cls_logits[i],
)
else:
result = SquadResult(unique_id, start_logits[i], end_logits[i])
all_results.append(result)
# Compute predictions
output_prediction_file = os.path.join(
self.trainer.checkpoint_callback.dirpath, "predictions_eval.json")
output_nbest_file = os.path.join(
self.trainer.checkpoint_callback.dirpath,
"nbest_predictions_eval.json")
if self.version_2_with_negative:
output_null_log_odds_file = os.path.join(
self.trainer.checkpoint_callback.dirpath,
"null_odds_eval.json")
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if self.hparams.model_type in ["xlnet", "xlm"]:
start_n_top = self.model.config.start_n_top if hasattr(
self.model, "config") else self.model.module.config.start_n_top
end_n_top = self.model.config.end_n_top if hasattr(
self.model, "config") else self.model.module.config.end_n_top
from transformers.data.metrics.squad_metrics import compute_predictions_log_probs
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
self.hparams.n_best_size,
self.hparams.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
self.version_2_with_negative,
self.trainer.datamodule.tokenizer,
False # Not want to do verbose logging
)
else:
from transformers.data.metrics.squad_metrics import compute_predictions_logits
predictions = compute_predictions_logits(
examples,
features,
all_results,
self.hparams.n_best_size,
self.hparams.max_answer_length,
self.hparams.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
False, # Not want to do verbose logging
self.version_2_with_negative,
self.hparams.null_score_diff_threshold,
self.trainer.datamodule.tokenizer)
# Compute the F1 and exact scores.
from transformers.data.metrics.squad_metrics import squad_evaluate
results = squad_evaluate(examples, predictions)
return results
def evaluate(args, config, model, tokenizer, prefix="", global_step=0):
dataset, examples, features = load_and_cache_examples(args,
config,
tokenizer,
evaluate=True,
output_examples=True)
config['eval'][
'eval_batch_size'] = config.eval.per_gpu_eval_batch_size * max(
1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=config.eval.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1 and not isinstance(model, torch.nn.DataParallel):
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", config.eval.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(args.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if config.model.model_type in [
"xlm", "roberta", "distilbert", "camembert"
]:
del inputs["token_type_ids"]
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if config.model.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(
model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
config.input.lang_id).to(args.device)
})
outputs = model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)",
evalTime, evalTime / len(dataset))
# Compute predictions
output_prediction_file = os.path.join(config.output.log_dir,
f"predictions_{prefix}.json")
output_nbest_file = os.path.join(
config.output.log_dir,
f"nbest_{config.model.n_best_size}_predictions_{prefix}.json")
if config.input.version_2_with_negative:
output_null_log_odds_file = os.path.join(config.output.log_dir,
f"null_odds_{prefix}.json")
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if config.model.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
config.model.n_best_size,
config.model.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
config.input.version_2_with_negative,
tokenizer,
config.output.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
config.model.n_best_size,
config.model.max_answer_length,
config.model.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
config.output.verbose_logging,
config.input.version_2_with_negative,
config.model.null_score_diff_threshold,
tokenizer,
)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
# Save eval results to output file as well
if prefix == "-1":
# evaluate at the end of training, store in the log_dir directly
output_eval_file = os.path.join(config.output.log_dir,
"eval_results.tsv")
else:
# there is a 'prefix' subfolder
output_eval_file = os.path.join(config.output.log_dir, prefix,
"eval_results.tsv")
if not os.path.exists(
output_eval_file): # file does not exist yet. write header first
with open(output_eval_file, "a") as writer:
writer.write("global_step\t" + "\t".join(results.keys()) +
"\n") # write header
with open(output_eval_file, "a") as writer:
logger.info("***** Eval results {} *****".format(prefix))
for key in sorted(results.keys()):
logger.info(" %s = %s", key, str(results[key]))
line = [str(global_step)] + [str(r) for r in results.values()]
writer.write("\t".join(line) + "\n")
return results
def evaluate(args: Args,
model,
tokenizer,
dataset,
examples,
features,
suffix="",
return_raw=False):
if args.no_cuda is None:
args.no_cuda = not _is_gpu_available()
if args.predictions_folder:
assert args.eval_file, "Need name of the eval file to save predictions!"
device = torch.device(
"cuda" if torch.cuda.is_available() and not args.no_cuda else "cpu")
n_gpu = 0 if args.no_cuda else torch.cuda.device_count()
eval_batch_size = args.per_gpu_eval_batch_size * max(1, n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=eval_batch_size)
model.to(device)
# multi-gpu evaluate
if n_gpu > 1 and not isinstance(model, torch.nn.DataParallel):
model = torch.nn.DataParallel(model)
# Eval!
click.echo(
f"Generating predictions for model {click.style(args.model_path, fg='blue')}, "
f"running on {click.style(str(device), fg='green')}")
click.echo(" Num examples = %d" % len(dataset))
click.echo(" Batch size = %d" % eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if args.model_type in [
"xlm", "roberta", "distilbert", "camembert"
]:
del inputs["token_type_ids"]
feature_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(
model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
args.lang_id).to(device)
})
outputs = model(**inputs)
for i, feature_index in enumerate(feature_indices):
eval_feature = features[feature_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
eval_time = timeit.default_timer() - start_time
logger.info(
f"Evaluation done in total {eval_time} secs ({eval_time / len(dataset)} sec per example)"
)
eval_file = args.eval_file
predictions_folder = args.predictions_folder
v2 = args.v2
if predictions_folder:
out_file = get_output_predictions_file_name(eval_file,
predictions_folder, suffix)
logger.info(f"Saving predictions in {out_file}")
# Compute predictions
file_name = os.path.basename(out_file)
output_prediction_file = os.path.join(predictions_folder, file_name)
# output_nbest_file = os.path.join(predictions_folder, f"nbest-{file_name}")
output_nbest_file = None
if v2:
output_null_log_odds_file = os.path.join(predictions_folder,
f"null-odds-{file_name}")
else:
output_null_log_odds_file = None
else:
logger.info("Not saving predictions...")
output_prediction_file = None
output_nbest_file = None
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.v2,
tokenizer,
args.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
args.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
args.verbose_logging,
args.v2,
args.null_score_diff_threshold,
tokenizer,
)
# Compute the F1 and exact scores.
# results = squad_evaluate(examples, predictions)
# return results
if return_raw:
return predictions
else:
return squad_evaluate(examples, predictions)
def answer_question(self, ranked_examples):
squad_examples = [SquadExample(
qas_id=str(x['id']),
question_text=x['question'],
context_text=x['document'],
answer_text=None,
start_position_character=None,
title='',
answers=[],
) for x in ranked_examples]
squad_features, squad_dataset = squad_convert_examples_to_features(
examples=squad_examples,
tokenizer=self.tokenizer,
max_seq_length=512,
doc_stride=128,
max_query_length=64,
is_training=False,
return_dataset="pt",
threads=cpu_count(),
)
eval_batch_size = self.per_gpu_eval_batch_size * max(1, self.n_gpu)
eval_sampler = SequentialSampler(squad_dataset)
eval_dataloader = DataLoader(squad_dataset, sampler=eval_sampler, batch_size=eval_batch_size)
# multi-gpu evaluate
if self.n_gpu > 1 and not isinstance(self.model, torch.nn.DataParallel):
self.model = torch.nn.DataParallel(self.model)
# Eval!
logger.info("***** Running evaluation of QA *****")
logger.info(" Num examples = %d", len(squad_dataset))
logger.info(" Batch size = %d", eval_batch_size)
all_results = []
for batch in tqdm(eval_dataloader, desc="Evaluating reader"):
self.model.eval()
batch = tuple(t.to(self.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if self.model_type in ["xlm", "roberta", "distilbert"]:
del inputs["token_type_ids"]
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if self.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm self.models
if hasattr(self.model, "config") and hasattr(self.model.config, "lang2id"):
inputs.update(
{"langs": (torch.ones(batch[0].shape, dtype=torch.int64) * self.lang_id).to(self.device)}
)
outputs = self.model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = squad_features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
# Compute predictions
output_prediction_file = os.path.join(self.model_name_or_path, "predictions.json")
output_nbest_file = os.path.join(self.model_name_or_path, "nbest_predictions.json")
if True:
output_null_log_odds_file = os.path.join(self.model_name_or_path, "null_odds.json")
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if self.model_type in ["xlnet", "xlm"]:
start_n_top = self.model.config.start_n_top if hasattr(self.model, "config") else self.model.module.config.start_n_top
end_n_top = self.model.config.end_n_top if hasattr(self.model, "config") else self.model.module.config.end_n_top
predictions = compute_predictions_log_probs(
squad_examples,
squad_features,
all_results,
n_best_size=self.n_best_size,
max_answer_length=self.max_answer_length,
output_prediction_file=output_prediction_file,
output_nbest_file=output_nbest_file,
output_null_log_odds_file=output_null_log_odds_file,
start_n_top=start_n_top,
end_n_top=end_n_top,
version_2_with_negative=True,
tokenizer=self.okenizer,
verbose_logging=True,
)
else:
predictions = compute_predictions_logits(
squad_examples,
squad_features,
all_results,
n_best_size=self.n_best_size,
max_answer_length=self.max_answer_length,
do_lower_case=True,
output_prediction_file=output_prediction_file,
output_nbest_file=output_nbest_file,
output_null_log_odds_file=output_null_log_odds_file,
verbose_logging=True,
version_2_with_negative=True,
null_score_diff_threshold=0.0,
tokenizer=self.tokenizer,
)
logger.info('predictions: {}'.format(predictions))
with open(output_nbest_file) as f:
output_nbest = json.load(f)
return output_nbest
def __get_predictions(self, dataloader, features, samples, prefix=""):
self.model.eval()
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
all_results = []
for batch in tqdm(dataloader, desc="Evaluating"):
batch = tuple(t.to(device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if self.model_type in ["xlm", "roberta", "distilbert"]:
del inputs["token_type_ids"]
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if self.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
outputs = self.model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
#compute predictions
output_prediction_file = os.path.join(
self.output_dir, "predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
self.output_dir, "nbest_predictions_{}.json".format(prefix))
output_null_log_odds_file = os.path.join(
self.output_dir, "null_odds_{}.json".format(prefix))
# XLNet and XLM use a more complex post-processing procedure
if self.model_type in ["xlnet", "xlm"]:
start_n_top = self.model.config.start_n_top if hasattr(
self.model, "config") else self.model.module.config.start_n_top
end_n_top = self.model.config.end_n_top if hasattr(
self.model, "config") else self.model.module.config.end_n_top
predictions = compute_predictions_log_probs(
samples,
features,
all_results,
self.n_best_size,
self.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
True,
self.tokenizer,
False,
)
else:
predictions = compute_predictions_logits(
samples, features, all_results, self.n_best_size,
self.max_answer_length, True, output_prediction_file,
output_nbest_file, output_null_log_odds_file, False, True,
self.null_score_diff_threshold, self.tokenizer)
return predictions
def evaluate(model, tokenizer, output_dir, prefix="", bs=2):
dataset, examples, features = load_and_cache_examples(tokenizer,
evaluate=True,
output_examples=True)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
eval_batch_size = bs
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=eval_batch_size)
# Eval!
print("***** Running evaluation {} *****".format(prefix))
print(" Num examples = %d" % len(dataset))
print(" Batch size = %d" % eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(model.config, "lang2id"):
inputs.update({
"langs": (torch.ones(batch[0].shape, dtype=torch.int64) *
args.lang_id).to(device)
})
outputs = model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
print(" Evaluation done in total %f secs (%f sec per example)" %
(evalTime, evalTime / len(dataset)))
# Compute predictions
output_prediction_file = os.path.join(output_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
output_dir, "nbest_predictions_{}.json".format(prefix))
output_null_log_odds_file = os.path.join(
output_dir, "null_odds_{}.json".format(prefix))
# XLNet and XLM use a more complex post-processing procedure
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
20,
30,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
True,
tokenizer,
False,
)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
return results
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.version_2_with_negative,
tokenizer,
args.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
args.do_lower_case,
def evaluate(args, model, tokenizer, prefix=""):
dataset, examples, features = load_and_cache_examples(args,
tokenizer,
evaluate=True,
output_examples=True)
if not os.path.exists(args.output_dir) and args.local_rank in [-1, 0]:
os.makedirs(args.output_dir)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1:
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", args.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(args.device) for t in batch)
with torch.no_grad():
inputs = {'input_ids': batch[0], 'attention_mask': batch[1]}
if args.model_type != 'distilbert':
inputs[
'token_type_ids'] = None if args.model_type == 'xlm' else batch[
2] # XLM don't use segment_ids
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ['xlnet', 'xlm']:
inputs.update({'cls_index': batch[4], 'p_mask': batch[5]})
outputs = model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)",
evalTime, evalTime / len(dataset))
# Compute predictions
output_prediction_file = os.path.join(args.output_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
args.output_dir, "nbest_predictions_{}.json".format(prefix))
if args.version_2_with_negative:
output_null_log_odds_file = os.path.join(
args.output_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ['xlnet', 'xlm']:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples, features, all_results, args.n_best_size,
args.max_answer_length, output_prediction_file, output_nbest_file,
output_null_log_odds_file, start_n_top, end_n_top,
args.version_2_with_negative, tokenizer, args.verbose_logging)
else:
predictions = compute_predictions_logits(
examples, features, all_results, args.n_best_size,
args.max_answer_length, args.do_lower_case, output_prediction_file,
output_nbest_file, output_null_log_odds_file, args.verbose_logging,
args.version_2_with_negative, args.null_score_diff_threshold)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
return results
def evaluate(args,
model,
tokenizer,
prefix="",
save_dir='',
save_log_path=None):
dataset, examples, features = load_and_cache_examples(args,
tokenizer,
evaluate=True,
output_examples=True)
if not save_dir and args.local_rank in [-1, 0]:
os.makedirs(save_dir)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1 and not isinstance(model, torch.nn.DataParallel):
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", args.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
# y_cls_correct = 0
# y_cls_incorrect = 0
y_cls_tp, y_cls_tn, y_cls_fp, y_cls_fn = 0, 0, 0, 0
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(args.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
if args.model_type in [
"xlm", "roberta", "distilbert", "camembert"
]:
del inputs["token_type_ids"]
example_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(
model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
args.lang_id).to(args.device)
})
outputs = model(**inputs)
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
is_impossible = eval_feature.is_impossible
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits, logits_cls, prob_cls = output
prob_cls = np.asarray(prob_cls, dtype=np.float)
predict_cls = np.argmax(prob_cls)
if predict_cls == int(not is_impossible):
if is_impossible:
y_cls_tn += 1
else:
y_cls_tp += 1
else:
if is_impossible:
y_cls_fp += 1
else:
y_cls_fn += 1
result = SquadResult(unique_id, start_logits, end_logits)
# Add cls prediction
if args.force_cls_pred:
result.prob_cls = prob_cls
all_results.append(result)
# print(y_cls_correct, y_cls_incorrect)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)",
evalTime, evalTime / len(dataset))
# Compute predictions
output_prediction_file = os.path.join(save_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
save_dir, "nbest_predictions_{}.json".format(prefix))
if args.version_2_with_negative:
output_null_log_odds_file = os.path.join(
save_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.version_2_with_negative,
tokenizer,
args.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
args.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
args.verbose_logging,
args.version_2_with_negative,
args.null_score_diff_threshold,
tokenizer,
)
if args.force_cls_pred:
example_index_to_features = collections.defaultdict(list)
for feature in features:
example_index_to_features[feature.example_index].append(feature)
unique_id_to_result = {}
for result in all_results:
unique_id_to_result[result.unique_id] = result
n_force = 0
for example_index, example in enumerate(examples):
eval_features = example_index_to_features[example_index]
prob = []
for eval_feature in eval_features:
eval_result = unique_id_to_result[eval_feature.unique_id]
prob.append(eval_result.prob_cls[0])
if np.mean(prob) >= 0.8:
predictions[example.qas_id] = ""
n_force += 1
print("\n")
print("num of force prediction:", n_force)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
cls_accuracy = (y_cls_tn + y_cls_tp) / (y_cls_tn + y_cls_tp + y_cls_fn +
y_cls_fp)
cls_no_ans_accuracy = y_cls_tn / (y_cls_tn + y_cls_fp)
cls_has_ans_accuracy = y_cls_tp / (y_cls_tp + y_cls_fn)
# Add CLS accuracy to result
results.update({
'cls_accuracy': cls_accuracy,
'cls_no_ans_accuracy': cls_no_ans_accuracy,
'cls_has_ans_accuracy': cls_has_ans_accuracy
})
# save log to file
if save_log_path:
util.save_json_file(save_log_path, results)
return results
def evaluate(args, model, tokenizer, prefix="", adapter_names=None):
dataset, examples, features = load_and_cache_examples(args,
tokenizer,
evaluate=True,
output_examples=True)
if not os.path.exists(args.output_dir) and args.local_rank in [-1, 0]:
os.makedirs(args.output_dir)
args.eval_batch_size = args.per_gpu_eval_batch_size * max(1, args.n_gpu)
# Note that DistributedSampler samples randomly
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=args.eval_batch_size)
# multi-gpu evaluate
if args.n_gpu > 1 and not isinstance(model, torch.nn.DataParallel):
model = torch.nn.DataParallel(model)
# Eval!
logger.info("***** Running evaluation {} *****".format(prefix))
logger.info(" Num examples = %d", len(dataset))
logger.info(" Batch size = %d", args.eval_batch_size)
all_results = []
start_time = timeit.default_timer()
for batch in tqdm(eval_dataloader, desc="Evaluating"):
model.eval()
batch = tuple(t.to(args.device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
"adapter_names": adapter_names,
}
if args.model_type in [
"xlm", "roberta", "distilbert", "camembert"
]:
del inputs["token_type_ids"]
feature_indices = batch[3]
# XLNet and XLM use more arguments for their predictions
if args.model_type in ["xlnet", "xlm"]:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
# for lang_id-sensitive xlm models
if hasattr(model, "config") and hasattr(
model.config, "lang2id"):
inputs.update({
"langs":
(torch.ones(batch[0].shape, dtype=torch.int64) *
args.lang_id).to(args.device)
})
outputs = model(**inputs)
for i, feature_index in enumerate(feature_indices):
# TODO: i and feature_index are the same number! Simplify by removing enumerate?
eval_feature = features[feature_index.item()]
unique_id = int(eval_feature.unique_id)
output = [to_list(output[i]) for output in outputs]
# Some models (XLNet, XLM) use 5 arguments for their predictions, while the other "simpler"
# models only use two.
if len(output) >= 5:
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(
unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits,
)
else:
start_logits, end_logits = output
result = SquadResult(unique_id, start_logits, end_logits)
all_results.append(result)
evalTime = timeit.default_timer() - start_time
logger.info(" Evaluation done in total %f secs (%f sec per example)",
evalTime, evalTime / len(dataset))
# Compute predictions
output_prediction_file = os.path.join(args.output_dir,
"predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
args.output_dir, "nbest_predictions_{}.json".format(prefix))
if args.version_2_with_negative:
output_null_log_odds_file = os.path.join(
args.output_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
# XLNet and XLM use a more complex post-processing procedure
if args.model_type in ["xlnet", "xlm"]:
start_n_top = model.config.start_n_top if hasattr(
model, "config") else model.module.config.start_n_top
end_n_top = model.config.end_n_top if hasattr(
model, "config") else model.module.config.end_n_top
predictions = compute_predictions_log_probs(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
start_n_top,
end_n_top,
args.version_2_with_negative,
tokenizer,
args.verbose_logging,
)
else:
predictions = compute_predictions_logits(
examples,
features,
all_results,
args.n_best_size,
args.max_answer_length,
args.do_lower_case,
output_prediction_file,
output_nbest_file,
output_null_log_odds_file,
args.verbose_logging,
args.version_2_with_negative,
args.null_score_diff_threshold,
tokenizer,
)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
return results
def evaluate(self, dataset, examples, features, prefix=""):
eval_batch_size = 8
eval_sampler = SequentialSampler(dataset)
eval_dataloader = DataLoader(dataset,
sampler=eval_sampler,
batch_size=eval_batch_size)
all_results = []
for batch in tqdm(eval_dataloader, desc="Evaluating"):
self._model.eval()
batch = tuple(t.to(self._device) for t in batch)
with torch.no_grad():
inputs = {
"input_ids": batch[0],
"attention_mask": batch[1],
"token_type_ids": batch[2],
}
example_indices = batch[3]
if self._model_name in ['xlnet']:
inputs.update({"cls_index": batch[4], "p_mask": batch[5]})
print("Coding: inputs ", inputs)
outputs = self._model(**inputs)
# feature is needed
for i, example_index in enumerate(example_indices):
eval_feature = features[example_index.item()]
unique_id = int(eval_feature.unique_id)
print("Coding: unique_id ", unique_id)
output = [self._to_list(output[i]) for output in outputs]
start_logits = output[0]
start_top_index = output[1]
end_logits = output[2]
end_top_index = output[3]
cls_logits = output[4]
result = SquadResult(unique_id,
start_logits,
end_logits,
start_top_index=start_top_index,
end_top_index=end_top_index,
cls_logits=cls_logits)
all_results.append(result)
# Compute predictions
output_dir = os.getcwd()
output_prediction_file = os.path.join(
output_dir, "predictions_{}.json".format(prefix))
output_nbest_file = os.path.join(
output_dir, "nbest_predictions_{}.json".format(prefix))
version_2_with_negative = True
output_null_log_odds_file = None
if version_2_with_negative:
output_null_log_odds_file = os.path.join(
output_dir, "null_odds_{}.json".format(prefix))
else:
output_null_log_odds_file = None
n_best_size = 20
max_answer_length = 30
verbose_logging = True
if self._model_name in ['xlnet']:
start_n_top = self._model.config.start_n_top
end_n_top = self._model.config.end_n_top
predictions = compute_predictions_log_probs(
examples, features, all_results, n_best_size,
max_answer_length, output_prediction_file, output_nbest_file,
output_null_log_odds_file, start_n_top, end_n_top,
version_2_with_negative, self._tokenizer, verbose_logging)
# Compute the F1 and exact scores.
results = squad_evaluate(examples, predictions)
return results
