This is the official repository of the paper:

Article Reranking by Memory-enhanced Key Sentence Matching for Detecting Previously Fact-checked Claims.

Qiang Sheng, Juan Cao, Xueyao Zhang, Xirong Li, and Lei Zhong.

Proceedings of the Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (ACL-IJCNLP 2021)

PDF / Poster / Code / Chinese Dataset / Chinese Blog 1 / Chinese Blog 2

There are two experimental datasets, including the Twitter Dataset, and the firstly proposed Weibo Dataset. Note that you can download the Weibo Dataset only after an "Application to Use the Chinese Dataset for Detecting Previously Fact-Checked Claim" has been submitted.

python==3.6.10
torch==1.6.0
torchvision==0.7.0
transformers==3.2.0

After you download the dataset (the way to access is described here), move the FN_11934_filtered.json and DN_27505_filtered.json into the path MTM/dataset/Weibo/raw:

mkdir MTM/dataset/Weibo/raw
mv FN_11934_filtered.json MTM/dataset/Weibo/raw
mv DN_27505_filtered.json MTM/dataset/Weibo/raw

cd MTM/preprocess/tokenize
sh run_weibo.sh

cd MTM/preprocess/ROT

You can refer to the run_weibo.sh, which includes three steps:

1. Prepare RougeBert's Training data:

   python prepare_for_rouge.py --dataset Weibo --pretrained_model bert-base-chinese
   

2. Training:

   CUDA_VISIBLE_DEVICES=0 python main.py --debug False \
   --dataset Weibo --pretrained_model bert-base-chinese --save './ckpts/Weibo' \
   --rouge_bert_encoder_layers 1 --rouge_bert_regularize 0.01 \
   --fp16 True
   

   then you can get ckpts/Weibo/[EPOCH].pt.

3. Vectorize the claims and articles (get embeddings):

   CUDA_VISIBLE_DEVICES=0 python get_embeddings.py \
   --dataset Weibo --pretrained_model bert-base-chinese \
   --rouge_bert_model_file './ckpts/Weibo/[EPOCH].pt' \
   --batch_size 1024 --embeddings_type static
   

cd MTM/preprocess/PMB

1. Prepare the clustering data:

   mkdir data
   mkdir data/Weibo
   

   and you can get data/Weibo/clustering_training_data_[TS_SMALL]<dist<[TS_LARGE].pkl after running calculate_init_thresholds.ipynb.

2. Kmeans clustering. You can refer to the run_weibo.sh:

   python kmeans_clustering.py --dataset Weibo --pretrained_model bert-base-chinese --clustering_data_file 'data/Weibo/clustering_training_data_[TS_SMALL]<dist<[TS_LARGE].pkl'
   

   then you can get data/Weibo/kmeans_cluster_centers.npy.

Besides, it is available to see some cases of key sentences selection in key_sentences_selection_cases_Weibo.ipynb.

cd MTM/model
mkdir data
mkdir data/Weibo

You can refer to the run_weibo.sh:

CUDA_VISIBLE_DEVICES=0 python main.py --debug False --save 'ckpts/Weibo' \
--dataset 'Weibo' --pretrained_model 'bert-base-chinese' \
--rouge_bert_model_file '../preprocess/ROT/ckpts/Weibo/[EPOCH].pt' \
--memory_init_file '../preprocess/PMB/data/Weibo/kmeans_cluster_centers.npy' \
--claim_sentence_distance_file './data/Weibo/claim_sentence_distance.pkl' \
--pattern_sentence_distance_init_file './data/Weibo/pattern_sentence_distance_init.pkl' \
--memory_updated_step 0.3 --lambdaQ 0.6 --lambdaP 0.4 \
--selected_sentences 3 \
--lr 5e-6 --epochs 10 --batch_size 32 \

then the results and ranking reports will be saved in ckpts/Weibo.

The description of the dataset can be seen at here.

cd MTM/preprocess/tokenize
sh run_twitter.sh

cd MTM/preprocess/ROT

You can refer to the run_twitter.sh, which includes three steps:

1. Prepare RougeBert's Training data:

   python prepare_for_rouge.py --dataset Twitter --pretrained_model bert-base-uncased
   

2. Training:

   CUDA_VISIBLE_DEVICES=0 python main.py --debug False \
   --dataset Twitter --pretrained_model bert-base-uncased --save './ckpts/Twitter' \
   --rouge_bert_encoder_layers 1 --rouge_bert_regularize 0.05 \
   --fp16 True
   

   then you can get ckpts/Twitter/[EPOCH].pt.

3. Vectorize the claims and articles (get embeddings):

   CUDA_VISIBLE_DEVICES=0 python get_embeddings.py \
   --dataset Twitter --pretrained_model bert-base-uncased \
   --rouge_bert_model_file './ckpts/Twitter/[EPOCH].pt' \
   --batch_size 1024 --embeddings_type static
   

cd MTM/preprocess/PMB

1. Prepare the clustering data:

   mkdir data
   mkdir data/Twitter
   

   and you can get data/Twitter/clustering_training_data_[TS_SMALL]<dist<[TS_LARGE].pkl after running calculate_init_thresholds.ipynb.

2. Kmeans clustering. You can refer to the run_twitter.sh:

   python kmeans_clustering.py --dataset Twitter --pretrained_model bert-base-uncased --clustering_data_file 'data/Twitter/clustering_training_data_[TS_SMALL]<dist<[TS_LARGE].pkl'
   

   then you can get data/Twitter/kmeans_cluster_centers.npy.

Besides, it is available to see some cases of key sentences selection in key_sentences_selection_cases_Twitter.ipynb.

cd MTM/model
mkdir data
mkdir data/Twitter

You can refer to the run_twitter.sh:

CUDA_VISIBLE_DEVICES=0 python main.py --debug False --save 'ckpts/Twitter' \
--dataset 'Twitter' --pretrained_model 'bert-base-uncased' \
--rouge_bert_model_file '../preprocess/ROT/ckpts/Twitter/[EPOCH].pt' \
--memory_init_file '../preprocess/PMB/data/Twitter/kmeans_cluster_centers.npy' \
--claim_sentence_distance_file './data/Twitter/claim_sentence_distance.pkl' \
--pattern_sentence_distance_init_file './data/Twitter/pattern_sentence_distance_init.pkl' \
--memory_updated_step 0.3 --lambdaQ 0.6 --lambdaP 0.4 \
--selected_sentences 5 \
--lr 1e-4 --epochs 10 --batch_size 16 \

then the results and ranking reports will be saved in ckpts/Twitter.

@inproceedings{MTM,
  author    = {Qiang Sheng and
               Juan Cao and
               Xueyao Zhang and
               Xirong Li and
               Lei Zhong},
  title     = {Article Reranking by Memory-Enhanced Key Sentence Matching for Detecting
               Previously Fact-Checked Claims},
  booktitle = {Proceedings of the 59th Annual Meeting of the Association for Computational
               Linguistics and the 11th International Joint Conference on Natural
               Language Processing, {ACL/IJCNLP} 2021},
  pages     = {5468--5481},
  publisher = {Association for Computational Linguistics},
  year      = {2021},
  url       = {https://doi.org/10.18653/v1/2021.acl-long.425},
  doi       = {10.18653/v1/2021.acl-long.425},
}