LLM-driven Dialogue State Tracking

Thank you for your interest in our work, and this is the original implementation of "Towards LLM-driven Dialogue State Tracking", accepted to EMNLP 2023.

Local Setup

conda create -n LDST python=3.7
conda activate LDST
pip install -r requirements.txt

Data preparation

The two benchmark Datasets can be downloaded at:

• MultiWOZ: https://github.com/budzianowski/multiwoz
• SGD Dataset: https://github.com/google-research-datasets/dstc8-schema-guided-dialogue

We use the data processing script provided by DST-as-Prompting for data pre-processing, post-processing and evaluation.

Trainnig (finetune.py)

WORLD_SIZE=4 CUDA_VISIBLE_DEVICES=0,1,2,3 torchrun \
--nproc_per_node=4 \
--master_port=1234 \
finetune.py \
--base_model 'decapoda-research/llama-7b-hf' \
--data_path './Data/MultiWOZ_2.2_preprocess/train_LLM_few-shot-1percent.json' \
--output_dir './LDST_MULTIWOZ22_few-shot_1percent' \
--num_epochs=2 \
--cutoff_len=512 \
--group_by_length \
--lora_target_modules='[q_proj,k_proj,v_proj,o_proj]' \
--micro_batch_size=8 \

This should take ~30 hours to train on a single Nvidia 3090 GPU. At the end of training, the model's fine-tuned weights will be stored in $output_dir.

Inference ( generate.py)

You can load the weights that we have provided directly from the \checkpoint folder, and make inference.

Zero-shot setting inference:

CUDA_VISIBLE_DEVICES=0 python generate_zero-shot.py \
    --load_8bit \
    --base_model 'decapoda-research/llama-7b-hf' \
    --lora_weights './Checkpoint_files/Zero-shot_MultiWOZ2-2_except-attraction-domain' \
    --testfile_name './Data/MULTIWOZ22_preprocess/test_LLM.json' \
    --testfile_idx './Data/MULTIWOZ22_preprocess/test_LLM.idx' \
    --output_file './LDST_result_MULTIWOZ22_zero-shot_attraction-domain/test_LLM_result.txt' \
    --except_domain 'attraction'

• --except_domain: indicates the unseen domains during training which is the only different parameter between zero-shot inference and few-shot inference.

Few-shot setting inference:

CUDA_VISIBLE_DEVICES=0 python generate_few-shot.py \
    --load_8bit \
    --base_model 'decapoda-research/llama-7b-hf' \
    --lora_weights './Checkpoint_files/Few-shot_MultiWOZ2-4_1percent' \
    --testfile_name './Data/MULTIWOZ24_preprocess/test_LLM.json' \
    --testfile_idx './Data/MULTIWOZ24_preprocess/test_LLM.idx' \
    --output_file './LDST_result_MULTIWOZ24_few-shot-1percent/test_LLM_result.txt' 

Evaluation

python postprocess.py --data_dir "$DATA_DIR" --out_dir "$DATA_DIR/dummy/" --test_idx "$DATA_DIR/test.idx" \
    --prediction_txt "$output_dir/generated_predictions.txt"

python eval.py --data_dir "$DATA_DIR" --prediction_dir "$DATA_DIR/dummy/" \
    --output_metric_file "$DATA_DIR/dummy/prediction_score"

Checkpoint files

We provide all the fine-tuning weights in the Checkpoint_files folder.

Example output

Instruction: Track the state of the slot <hotel-area> in the input dialogue.

Input: [USER] I need to book a hotel in the east that has 4 stars. [SYSTEM] I can help you with that. What is your price range? [domain] hotel, [slot] area, it indicates area or place of the hotel. This slot is categorical and you can only choose from the following available values: centre, east, north, south, west. If the slot is not mentioned in the dialogue, just return NONE. So the value of slot <hotel-area> is

LDST Ouput: East

Citation

If this work proves beneficial or use our code for your research, citing our paper would be greatly appreciated.

@inproceedings{feng-etal-2023-ldst,
    title = "Towards LLM-driven Dialogue State Tracking",
    author = "Feng, Yujie  and
      Lu, Zexin  and
      Liu, Bo  and
      Zhan, Liming and
      Wu, Xiaoming",
    booktitle = "Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing (EMNLP)",
    month = dec,
    year = "2023",
    address = "Singapore",
    publisher = "Association for Computational Linguistics",
}