XNLI task

XNLI is an evaluation corpus for language transfer and cross-lingual sentence classification.
In our experiments, we only use Chinese XNLI dataset.

Dataset

The official XNLI corpus can be find HERE
Download the corpus and save data at [XNLI_DATA_PATH]
We only use Chinese data.

Train and Evaluate

Download ChineseBERT model and save at [CHINESEBERT_PATH].
To be simplify, XNLI is a classification task with four classes, so you have to modify [CHINESEBERT_PATH]/config.json file, and set "num_labels":4.
Run the following scripts to train and evaluate.

python XNLI_trainer.py \
  --bert_path [CHINESEBERT_PATH] \
  --data_dir [XNLI_DATA_PATH] \
  --save_path [OUTPUT_PATH] \
  --max_epoch=5 \
  --batch_size=8 \
  --lr=3e-5 \
  --gpus=0,1

Result

The evaluation metric is Accuracy.
Result of our model and previous SOTAs are:

base model:

Model	Dev	Test
ERNIE	79.7	78.6
BERT	79.0	78.2
BERT-wwm	79.4	78.7
RoBERTa	80.0	78.8
MacBERT	80.3	79.3
ChineseBERT	80.5	79.6

large model:

Model	Dev	Test
RoBERTa	82.1	81.2
MacBERT	82.4	81.3
ChineseBERT	82.7	81.6