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Bertserini: Baseline on CMRC QA (in Chinese)

  1. Clone the repo with git clone https://github.com/castorini/bertserini.git
  2. pip install -r requirements.txt --find-links https://download.pytorch.org/whl/torch_stable.html

Download PreBuilt Wikipedia Index

We have indexed the 2018 Wikipedia Chinese dump. You can download the prepared index here:

cd indexes
wget https://rgw.cs.uwaterloo.ca/JIMMYLIN-bucket0/pyserini-indexes/lucene-index.zhwiki-20181201-paragraphs.tar.gz
tar -xvf lucene-index.zhwiki-20181201-paragraphs.tar.gz
rm lucene-index.zhwiki-20181201-paragraphs.tar.gz
cd ..

It contains the indexed 20181201 Chinese Wikipedia dump with Anserini.

Download the pre-trained models

We have uploaded the finetuned checkpoints to the huggingface models:
bertserini-bert-base-cmrc

To run our finetuned model, just set --model_name_or_path rsvp-ai/<MODEL_NAME>.
For example: --model_name_or_path rsvp-ai/bertserini-bert-base-cmrc.

Inferencing and evaluating

Prepare the datasets:

cd data
wget https://worksheets.codalab.org/rest/bundles/0xb70e5e281fcd437d9aa8f1c4da107ae4/contents/blob/
mv index.html cmrc2018_dev.json
wget https://worksheets.codalab.org/rest/bundles/0x72252619f67b4346a85e122049c3eabd/contents/blob/
mv index.html cmrc2018_dev_squad.json
cd ..

Inferencing CMRC under the open-domain setting

For rsvp-ai/bertserini-bert-base-cmrc

python -m bertserini.experiments.inference --dataset_path data/cmrc2018_dev_squad.json \
                                           --index_path indexes/lucene-index.zhwiki-20181201-paragraphs \
                                           --model_name_or_path rsvp-ai/bertserini-bert-base-cmrc \
                                           --output prediction/cmrc2018_pred.json \
                                           --support_no_answer False \
                                           --topk 10 \
                                           --language zh \
                                           --strip_accents

Evaluation

mkdir temp
python -m bertserini.experiments.evaluate --eval_data data/cmrc2018_dev.json \
                                          --search_file prediction/cmrc2018_pred.json \
                                          --output_path temp \
                                          --dataset cmrc

Expected results:

## rsvp-ai/bertserini-bert-base-cmrc, this is bert-base-chinese finetuned on the chinese reading comprehension dataset(CMRC)
(0.5, {'f1_score': 68.42519791441855, 'exact_match': 51.94159676918298, 'total_count': 3219, 'skip_count': 0})

Replication Log