CAG

This repository contains the code, data and models for the paper Not All Contexts Are Equal: Teaching LLMs Credibility-aware Generation.

QuickStart

Running CAG for Question Answering Using Our Demo

Step 1: Download the Model

You can download our Credibility-aware Generation model from HuggingFace Hub.

CAG 7B model | CAG 13B model | CAG Mistral 7B model

Step 2: Install Required Environment

pip install -r requirements.txt

Step 3: Run the Demo

python demo.py

CAGB

Access to the CAGB is available through the datasets folder in our repository or via the Hugging Face.

The CAGB contains 3 scenarios with a total of seven datasets.

• Open-domain QA
  • 2WikiMultiHopQA
  • HotpotQA
  • Musique
  • RGB
• Time-sensitive QA
  • EvoTempQA
• Misinformation Polluted QA
  • NewsPollutedQA

Each dataset contains data files under three settings: concat means that the documents are randomly sorted and directly concatenated, rerank means that the documents are reranked according to relevance, where the document with the highest relevance is closest to the question, and cred means that the documents are randomly sorted, with a credibility label marked before each document.

Data files containing qstart are used to evaluate models with instruction following capabilities, with their questions located at the front of the prompt. Data files without qstart are used to evaluate language models, to enable them to avoid forgetting the question, and the questions in these files are located at the end of the prompt.

Evaluate

Set up CAG prompt in Fastchat, add the following code in Fastchat/fastchat/conversations.py

register_conv_template(
    Conversation(
        name="CAG",
        system_message="A chat between a curious user and an artificial intelligence assistant. "
        "The assistant gives helpful, detailed, and polite answers to the user's questions."
        "The assistant answers questions based on given passages. Each article has a credibility rating that is categorized as: high, medium, or low. Credibility reflects the relevance and accuracy of the article to the question. The assistant's answer will need to synthesize the content and credibility of multiple articles.",
        roles=("USER", "ASSISTANT"),
        sep_style=SeparatorStyle.ADD_COLON_TWO,
        sep=" ",
        sep2="</s>",
    )
)

Setting-type indicates the scenario to be evaluated, options include: concat, rerank, cred.

#Eval the LM
bash scripts/llama7b.sh

#Eval Chatgpt
bash scripts/chatgpt.sh

#Eval CAG
bash scripts/cag-7b.sh

Training

Our training data is available here.

We use FastChat to fine-tune the LLaMA 7B, 13B model and use axolotl to fine-tune the Mistral 7B model.

Citation

@misc{pan2024contexts,
      title={Not All Contexts Are Equal: Teaching LLMs Credibility-aware Generation},
      author={Ruotong Pan and Boxi Cao and Hongyu Lin and Xianpei Han and Jia Zheng and Sirui Wang and Xunliang Cai and Le Sun},
      year={2024},
      eprint={2404.06809},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}