Files
Castor/common/evaluators/pit2015_evaluator.py
Victor Yang 10e4e56817 Add twitter url dataset (#145)
* add prediction/qrel files dump option

* fix comment

* add twitter-url dataset, minor refactor

* fix minor error
2018-09-08 11:16:23 +08:00

35 lines
1.5 KiB
Python

import torch
import torch.nn.functional as F
from .evaluator import Evaluator
class PIT2015Evaluator(Evaluator):
def get_scores(self):
self.model.eval()
self.data_loader.init_epoch()
n_dev_correct = 0
total_loss = 0
acc_total = 0
rel_total = 0
pre_total = 0
for batch_idx, batch in enumerate(self.data_loader):
sent1, sent2 = self.get_sentence_embeddings(batch)
scores = self.model(sent1, sent2, batch.ext_feats, batch.dataset.word_to_doc_cnt, batch.sentence_1_raw, batch.sentence_2_raw)
prediction = torch.max(scores, 1)[1].view(batch.label.size()).data
gold_label = batch.label.data
n_dev_correct += (prediction == gold_label).sum().item()
acc_total += ((prediction == batch.label.data) * (prediction == 1)).sum().item()
total_loss += F.nll_loss(scores, batch.label, size_average=False).item()
rel_total += gold_label.sum().item()
pre_total += prediction.sum().item()
del scores
precision = acc_total / pre_total
recall = acc_total / rel_total
f1 = 2 * precision * recall / (precision + recall)
accuracy = 100. * n_dev_correct / len(self.data_loader.dataset.examples)
avg_loss = total_loss / len(self.data_loader.dataset.examples)
return [accuracy, avg_loss, precision, recall, f1], ['accuracy', 'cross_entropy_loss', 'precision', 'recall', 'f1']