claim_detection / code /prediction.py
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import torch
from args import args, config
from tqdm import tqdm
from items_dataset import items_dataset
def test_predict(test_loader, device, model, min_label=1, max_label=3):
model.eval()
result = []
for i, test_batch in enumerate(tqdm(test_loader)):
batch_text = test_batch['batch_text']
input_ids = test_batch['input_ids'].to(device)
token_type_ids = test_batch['token_type_ids'].to(device)
attention_mask = test_batch['attention_mask'].to(device)
#labels = test_batch['labels'].to(device)
crf_mask = test_batch["crf_mask"].to(device)
sample_mapping = test_batch["overflow_to_sample_mapping"]
output = model(input_ids=input_ids, token_type_ids=token_type_ids, attention_mask=attention_mask, labels=None, crf_mask=crf_mask)
if args.use_crf:
prediction = model.crf.decode(output[0], crf_mask)
else:
prediction = torch.max(output[0], -1).indices
#make result of every sample
sample_id = -1
sample_result= {"text_a" : test_batch['batch_text'][0]}
for batch_id in range(len(sample_mapping)):
change_sample = False
if sample_id != sample_mapping[batch_id]: change_sample = True
#print(i, id)
if change_sample:
sample_id = sample_mapping[batch_id]
sample_result= {"text_a" : test_batch['batch_text'][sample_id]}
decode_span_table = torch.zeros(len(test_batch['batch_text'][sample_id]))
spans = items_dataset.cal_agreement_span(None, agreement_table=prediction[batch_id], min_agree=min_label, max_agree=max_label)
#decode spans
for span in spans:
#print(span)
if span[0]==0: span[0]+=1
if span[1]==1: span[1]+=1
while(True):
start = test_batch[batch_id].token_to_chars(span[0])
if start != None or span[0]>=span[1]:
break
span[0]+=1
while(True):
end = test_batch[batch_id].token_to_chars(span[1])
if end != None or span[0]>=span[1]:
break
span[1]-=1
if span[0]<span[1]:
de_start = test_batch[batch_id].token_to_chars(span[0])[0]
de_end = test_batch[batch_id].token_to_chars(span[1]-1)[0]
#print(de_start, de_end)
#if(de_start>512): print(de_start, de_end)
decode_span_table[de_start:de_end]=2 #insite
decode_span_table[de_start]=1 #begin
if change_sample:
sample_result["predict_span_table"] = decode_span_table
#sample_result["boundary"] = test_batch["boundary"][id]
result.append(sample_result)
model.train()
return result
def add_sentence_table(result):
pattern =":;。,?!~!: "
for sample in result:
boundary_list = []
for i, char in enumerate(sample['text_a']):
if char in pattern:
boundary_list.append(i)
boundary_list.append(len(sample['text_a'])+1)
start=0
end =0
pre_states =False
sample["predict_sentence_table"] = torch.zeros(len(sample["predict_span_table"]))
for boundary in boundary_list:
end = boundary
if(sum(sample["predict_span_table"][start:end])>0):
if pre_states:
sample["predict_sentence_table"][start-1:end] = 2
else:
sample["predict_sentence_table"][start:end] = 2
sample["predict_sentence_table"][start] = 1
pre_states=True
else: pre_states =False
start = end+1