KGML

About

Source code of the paper Knowledge-Aware Meta-learning for Low-Resource Text Classification.

If you find this repository useful in your research, please cite the following paper:

@inproceedings{yao2021knowledge,
  title={Knowledge-Aware Meta-learning for Low-Resource Text Classification},
  author={Yao, Huaxiu and Wu, Yingxin and Al-Shedivat, Maruan and Wei, Ying and Xing, Eric P.},
  booktitle={Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing},
  year={2021} 
}

Preprocess Knowledge Graph

1. Download LibKGE in folder kg_preprocess/

   git clone git@github.com:uma-pi1/kge.git

2. Pretrain Knowledge Graph

   python -m kge start rescal.yaml

3. Preprocess Knowledge Graph, c.f. knowledge_subgraph.ipynb (Note the name of model file needs to be change accrodingly).

After preprocessing, the following files will be in the folder data/wn18rr_kg

vocab.pt  
wn18rr_edge_attr.pt  
wn18rr_edge_index.pt  
wn18rr_edge_type.pt  
wn18rr_knn_edge_index.pt  
wn18rr_x.pt

Unsupervised KGML

I. Datasets

• Twitter

  Please refer to https://github.com/TalwalkarLab/leaf/tree/master/data/sent140 and run preprocess.sh via

  ./preprocess.sh -s niid --sf 1.0 -k 50 -t user --tf 0.8
  

  Put generated data and embedding file into folder data/twitter. Ensure there are four file/folders under data/twitter:

  test/     train/   val/   embs.json
  
  

II. Training

SEED=0
python train.py --dataset twitter  --use_context 0  --use_kg 1 --experiment_name twitter_kg_$SEED --meta_batch_size 2 --support_size 50 --sampling_type meta_batch_groups --uniform_over_groups 10  --num_epochs 200 --epochs_per_eval 1 --n_test_per_dist 2000 --optimizer adam --seed $SEED 

III. Testing

python test_on_groups.py --dataset twitter  --eval_on test --use_context 0 --use_kg 1 --ckpt_folders twitter_kg_0_0_xxxx --n_test_dists 30

Supervised KGML

I. Datasets

We put preprocessed data in Google Drive

II. Training and Testing

See run.sh in supervised folder for more details