Post-Training with Interrogative Sentences for Enhancing BART-based Korean Question Generator

Post-Training for Question Generator implemented in Python. This repository is based on Post-Training with Interrogative Sentences for Enhancing BART-based Korean Question Generator from AACL-IJCNLP 2022.

Post-training Method List

This list is based on ablation study at (Park et al, 2022.)

1. Korean Spacing(KS)
2. Korean Spacing & Augmentation(KS_AUG)
3. Question Infilling(QI)
4. Question Infilling & Augmentation(QI_AUG)
5. Question Infilling & Korean Spacing(QI_KS)
6. Question Infilling & Korean Spacing & Augmentation(QI_KS_AUG)
7. Only fine-tuning(vanilla)

Directory

├── code
   ├── KS
   ├── KS_AUG
   ├── QI
   ├── QI_AUG
   ├── QI_KS
   ├── QI_KS_AUG
   └── vanilla

All of directory of code has KoBart.py, dataset.py, generate.py, post_dataset.py, post_train.py, train.py

• KoBart.py: Defining model for training. It is based KoBART.
• dataset.py: Utility code for loading and processing fine-tuning dataset.
• generate.py: Inference code. It is based beam search algorithm. Default beam size is 5.
• post_dataset.py: Utility code for loading and processing post-training dataset. Objective function for post-training is implemented in this Python code.
• post_train.py: Main code for post-training.
• train.py: Main code for fine-tuning.

Dataset

[Post-training]
 - Train: 243,425
 - reference
  - AI hub MRC dataset
  - https://www.aihub.or.kr/aihubdata/data/view.do?currMenu=115&topMenu=100&aihubDataSe=realm&dataSetSn=89

[Fine-tuning]
 - Train: 54,369
 - Validation: 6,038
 - Test: 5,574
 - reference
   - KorQuAD dataset
   - https://korquad.github.io/KorQuad%201.0/

Training and Inference

1. Post-training (Not for vanilla)

python post_train.py

2. Fine-tuning

python train.py

3. Inference

python generate.py

Evaluation for ablation study

	BLEU-4	ROUGE-L	METEOR
Po.-T. KoBART	21.05	40.07	34.82
-QI	-0.80	-0.34	-0.42
-DA	-1.93	-0.82	-0.67
-KS	-0.66	-0.18	-0.06
-(QI & DA)	-0.94	-1.16	-0.75
-(KS & DA)	-1.28	-0.49	-0.20
-(KS & DA & QI)	-0.93	-1.26	-0.62

Evaluation code is based on https://github.com/microsoft/unilm/tree/master/unilm-v1/src/qg

Reference

• KoBART
• KoBART Question Generation

Citation

Our paper can be cited as follows:

@project{khu-aici,
   title={Artificial Intelligence Convergence Innovation Human Resources Development (Kyung Hee University)},
   support={Institute of Information & communications Technology Planning & Evaluation (IITP)},
   num={RS-2022-00155911},
   year={2022}

Acknowledgement

This work was partly supported by Institute of Information & communications Technology Planning & Evaluation (IITP) grant funded by the Korea government(MSIT)
(No.RS-2022-00155911, Artificial Intelligence Convergence Innovation Human Resources Development (Kyung Hee University))
and  (No. 2022-0-00951, Development of Uncertainty-Aware Agents Learning by Asking Questions)