ChatKBQA

Official resources of "ChatKBQA: A Generate-then-Retrieve Framework for Knowledge Base Question Answering with Fine-tuned Large Language Models". Haoran Luo, Haihong E, Zichen Tang, Shiyao Peng, Yikai Guo, Wentai Zhang, Chenghao Ma, Guanting Dong, Meina Song, Wei Lin, Yifan Zhu, Luu Anh Tuan. Findings of ACL 2024 [paper].

Overview

General Setup

Environment Setup

conda create -n chatkbqa python=3.8
conda activate chatkbqa
pip install torch==1.13.1+cu117 torchvision==0.14.1+cu117 torchaudio==0.13.1 --extra-index-url https://download.pytorch.org/whl/cu117
pip install -r requirement.txt

Freebase KG Setup

Below steps are according to Freebase Virtuoso Setup.

How to install virtuoso backend for Freebase KG.

1. Clone from dki-lab/Freebase-Setup:

cd Freebase-Setup

1. Processed Freebase Virtuoso DB file can be downloaded from Dropbox or Baidu Netdisk (WARNING: 53G+ disk space is needed):

tar -zxvf virtuoso_db.zip

1. Managing the Virtuoso service:

To start service at localhost:3001/sparql:

python3 virtuoso.py start 3001 -d virtuoso_db

and to stop a currently running service at the same port:

python3 virtuoso.py stop 3001

A server with at least 100 GB RAM is recommended.

Download FACC1 mentions for Entity Retrieval.

• Download the mention information (including processed FACC1 mentions and all entity alias in Freebase) from OneDrive or Baidu Netdisk to data/common_data/facc1/.

ChatKBQA/
└── data/
    ├── common_data/                  
        ├── facc1/   
            ├── entity_list_file_freebase_complete_all_mention
            └── surface_map_file_freebase_complete_all_mention                                           

Dataset

Experiments are conducted on 2 KBQA benchmarks WebQSP, CWQ.

WebQSP

WebQSP dataset has been downloaded under data/WebQSP/origin.

ChatKBQA/
└── data/
    ├── WebQSP                  
        ├── origin                    
            ├── WebQSP.train.json                    
            └── WebQSP.test.json                                       

CWQ

CWQ dataset has been downloaded under data/CWQ/origin.

ChatKBQA/
└── data/
    ├── CWQ                 
        ├── origin                    
            ├── ComplexWebQuestions_train.json                   
            ├── ComplexWebQuestions_dev.json      
            └── ComplexWebQuestions_test.json                              

Data Processing

(1) Parse SPARQL queries to S-expressions

• WebQSP:

Run python parse_sparql_webqsp.py and the augmented dataset files are saved as data/WebQSP/sexpr/WebQSP.test[train].json.

• CWQ:

Run python parse_sparql_cwq.py and the augmented dataset files are saved as data/CWQ/sexpr/CWQ.test[train].json.

(2) Prepare data for training and evaluation

• WebQSP:

Run python data_process.py --action merge_all --dataset WebQSP --split test and python data_process.py --action merge_all --dataset WebQSP --split train. The merged data file will be saved as data/WebQSP/generation/merged/WebQSP_test[train].json.

Run python data_process.py --action get_type_label_map --dataset WebQSP --split train. The merged data file will be saved as data/WebQSP/generation/label_maps/WebQSP_train_type_label_map.json.

• CWQ:

Run python data_process.py --action merge_all --dataset CWQ --split test and python data_process.py --action merge_all --dataset CWQ --split train. The merged data file will be saved as data/CWQ/generation/merged/CWQ_test[train].json.

Run python data_process.py --action get_type_label_map --dataset CWQ --split train. The merged data file will be saved as data/CWQ/generation/label_maps/CWQ_train_type_label_map.json.

Note: You can also get the ChatKBQA processed data from TeraBox or Baidu Netdisk, which should be set in data/.

ChatKBQA/
└── data/
    ├── CWQ/                 
        ├── generation/    
        ├── origin/
        └── sexpr/  
    └── WebQSP/                 
        ├── generation/    
        ├── origin/
        └── sexpr/                                               

(3) Prepare data for LLM model

• WebQSP:

Run python process_NQ.py --dataset_type WebQSP. The merged data file will be saved as LLMs/data/WebQSP_Freebase_NQ_test[train]/examples.json.

• CWQ:

Run python process_NQ.py --dataset_type CWQ The merged data file will be saved as LLMs/data/CWQ_Freebase_NQ_test[train]/examples.json.

Note: You can also get the processed ChatKBQA SFT data from TeraBox or Baidu Netdisk, which should be set in LLMs/data.

ChatKBQA/
└── LLMs/
    ├── data/                 
        ├── CWQ_Freebase_NQ_test/                    
        ├── CWQ_Freebase_NQ_train/    
        ├── WebQSP_Freebase_NQ_test/                 
        ├── WebQSP_Freebase_NQ_train/      
        └── dataset_info.json                              

Fine-tuning, Retrieval and Evaluation

The following is an example of LLaMa2-7b fine-tuning and retrieval (num_beam = 15) on WebQSP and LLaMa2-13b fine-tuning and retrieval (num_beam = 8) on CWQ, respectively.

(1) Train and test LLM model for Logical Form Generation

• WebQSP:

Train LLMs for Logical Form Generation:

CUDA_VISIBLE_DEVICES=3 nohup python -u LLMs/LLaMA/src/train_bash.py --stage sft --model_name_or_path meta-llama/Llama-2-7b-hf --do_train  --dataset_dir LLMs/data --dataset WebQSP_Freebase_NQ_train --template llama2  --finetuning_type lora --lora_target q_proj,v_proj --output_dir Reading/LLaMA2-7b/WebQSP_Freebase_NQ_lora_epoch100/checkpoint --overwrite_cache --per_device_train_batch_size 4 --gradient_accumulation_steps 4  --lr_scheduler_type cosine --logging_steps 10 --save_steps 1000 --learning_rate 5e-5  --num_train_epochs 100.0 --plot_loss  --fp16 >> train_LLaMA2-7b_WebQSP_Freebase_NQ_lora_epoch100.txt 2>&1 &

Beam-setting LLMs for Logical Form Generation:

CUDA_VISIBLE_DEVICES=3 nohup python -u LLMs/LLaMA/src/beam_output_eva.py --model_name_or_path meta-llama/Llama-2-7b-hf --dataset_dir LLMs/data --dataset WebQSP_Freebase_NQ_test --template llama2 --finetuning_type lora --checkpoint_dir Reading/LLaMA2-7b/WebQSP_Freebase_NQ_lora_epoch100/checkpoint --num_beams 15 >> predbeam_LLaMA2-7b_WebQSP_Freebase_NQ_lora_epoch100.txt 2>&1 &

python run_generator_final.py --data_file_name Reading/LLaMA2-7b/WebQSP_Freebase_NQ_lora_epoch100/evaluation_beam/generated_predictions.jsonl

• CWQ:

Train LLMs for Logical Form Generation:

CUDA_VISIBLE_DEVICES=2 nohup python -u LLMs/LLaMA/src/train_bash.py --stage sft --model_name_or_path meta-llama/Llama-2-13b-hf --do_train  --dataset_dir LLMs/data --dataset CWQ_Freebase_NQ_train --template default  --finetuning_type lora --lora_target q_proj,v_proj --output_dir Reading/LLaMA2-13b/CWQ_Freebase_NQ_lora_epoch10/checkpoint --overwrite_cache --per_device_train_batch_size 4 --gradient_accumulation_steps 4  --lr_scheduler_type cosine --logging_steps 10 --save_steps 1000 --learning_rate 5e-5  --num_train_epochs 10.0 --plot_loss  --fp16 >> train_LLaMA2-13b_CWQ_Freebase_NQ_lora_epoch10.txt 2>&1 &

Beam-setting LLMs for Logical Form Generation:

CUDA_VISIBLE_DEVICES=3 nohup python -u LLMs/LLaMA/src/beam_output_eva.py --model_name_or_path meta-llama/Llama-2-13b-hf --dataset_dir LLMs/data --dataset CWQ_Freebase_NQ_test --template default --finetuning_type lora --checkpoint_dir Reading/LLaMA2-13b/CWQ_Freebase_NQ_lora_epoch10/checkpoint --num_beams 8 >> predbeam_LLaMA2-13b_CWQ_Freebase_NQ_lora_epoch10.txt 2>&1 &

python run_generator_final.py --data_file_name Reading/LLaMA2-13b/CWQ_Freebase_NQ_lora_epoch10/evaluation_beam/generated_predictions.jsonl

(2) Evaluate KBQA result with Retrieval

• WebQSP:

Evaluate KBQA result with entity-retrieval and relation-retrieval:

CUDA_VISIBLE_DEVICES=1 nohup python -u eval_final.py --dataset WebQSP --pred_file Reading/LLaMA2-7b/WebQSP_Freebase_NQ_lora_epoch100/evaluation_beam/beam_test_top_k_predictions.json >> predfinal_LLaMA2-7b_WebQSP_Freebase_NQ_lora_epoch100.txt 2>&1 &

Evaluate KBQA result with golden-entities and relation-retrieval:

CUDA_VISIBLE_DEVICES=4 nohup python -u eval_final.py --dataset WebQSP --pred_file Reading/LLaMA2-7b/WebQSP_Freebase_NQ_lora_epoch100/evaluation_beam/beam_test_top_k_predictions.json --golden_ent >> predfinalgoldent_LLaMA2-7b_WebQSP_Freebase_NQ_lora_epoch100.txt 2>&1 &

• CWQ:

Evaluate KBQA result with entity-retrieval and relation-retrieval:

CUDA_VISIBLE_DEVICES=4 nohup python -u eval_final_cwq.py --dataset CWQ --pred_file Reading/LLaMA2-13b/CWQ_Freebase_NQ_lora_epoch10/evaluation_beam/beam_test_top_k_predictions.json >> predfinal_LLaMA2-13b_CWQ_Freebase_NQ_lora_epoch10.txt 2>&1 &

Evaluate KBQA result with golden-entities and relation-retrieval:

CUDA_VISIBLE_DEVICES=5 nohup python -u eval_final_cwq.py --dataset CWQ --pred_file Reading/LLaMA2-13b/CWQ_Freebase_NQ_lora_epoch10/evaluation_beam/beam_test_top_k_predictions.json --golden_ent >> predfinalgoldent_LLaMA2-13b_CWQ_Freebase_NQ_lora_epoch10.txt 2>&1 &

Note: You can also get the ChatKBQA checkpoints and evaluations from TeraBox or Baidu Netdisk, which should be set in Reading/.

ChatKBQA/
└── Reading/
    ├── LLaMA2-7b/                 
        └── WebQSP_Freebase_NQ_lora_epoch100/  
            ├── checkpoint/    
            └── evaluation_beam/  
    └── LLaMA2-13b/                 
        └── CWQ_Freebase_NQ_lora_epoch10/  
            ├── checkpoint/    
            └── evaluation_beam/                                              

BibTex

If you find this work is helpful for your research, please cite:

@inproceedings{luo2024chatkbqa,
    title = "{C}hat{KBQA}: A Generate-then-Retrieve Framework for Knowledge Base Question Answering with Fine-tuned Large Language Models",
    author = "Luo, Haoran  and
      E, Haihong  and
      Tang, Zichen  and
      Peng, Shiyao  and
      Guo, Yikai  and
      Zhang, Wentai  and
      Ma, Chenghao  and
      Dong, Guanting  and
      Song, Meina  and
      Lin, Wei  and
      Zhu, Yifan  and
      Luu, Anh Tuan",
    editor = "Ku, Lun-Wei  and
      Martins, Andre  and
      Srikumar, Vivek",
    booktitle = "Findings of the Association for Computational Linguistics ACL 2024",
    month = aug,
    year = "2024",
    address = "Bangkok, Thailand and virtual meeting",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2024.findings-acl.122",
    pages = "2039--2056",
    abstract = "Knowledge Base Question Answering (KBQA) aims to answer natural language questions over large-scale knowledge bases (KBs), which can be summarized into two crucial steps: knowledge retrieval and semantic parsing. However, three core challenges remain: inefficient knowledge retrieval, mistakes of retrieval adversely impacting semantic parsing, and the complexity of previous KBQA methods. To tackle these challenges, we introduce ChatKBQA, a novel and simple generate-then-retrieve KBQA framework, which proposes first generating the logical form with fine-tuned LLMs, then retrieving and replacing entities and relations with an unsupervised retrieval method, to improve both generation and retrieval more directly. Experimental results show that ChatKBQA achieves new state-of-the-art performance on standard KBQA datasets, WebQSP, and CWQ. This work can also be regarded as a new paradigm for combining LLMs with knowledge graphs (KGs) for interpretable and knowledge-required question answering.",
}

For further questions, please contact: haoran.luo@ieee.org.

Acknowledgement

This repo benefits from PEFT, LLaMA-Efficient-Tuning, SimCSE, GMT-KBQA and DECAF. Thanks for their wonderful works.