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SAFER-INSTRUCT: Automated Generation of Large-Scale Preference Data for Aligning Language Models


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SAFER-INSTRUCT introduces a novel pipeline for efficiently constructing large-scale preference data without human annotators, enabling the development of safer and more capable AI systems.
Abstrak

The paper presents SAFER-INSTRUCT, a framework for automatically generating large-scale preference data for training language models through reinforcement learning from human feedback (RLHF). The key components of the framework are:

  1. Reversed Instruction Tuning: The authors fine-tune a language model (LLaMA) to perform instruction induction, generating instructions based on responses, rather than the typical supervised learning approach of generating responses from instructions.

  2. Instruction Induction: The reversed instruction tuning model is used to efficiently generate instructions related to specific topics, such as hate speech, without relying on manually crafted prompts. This adds flexibility and diversity to the instruction data.

  3. Low-quality Instruction Filtering: The generated instructions are filtered using an expert model (GPT-4) to ensure they can potentially elicit unsafe behaviors from language models.

  4. Response Generation: For each instruction, the authors generate a preferred response using an expert model (GPT-4) and a dispreferred response from the original harmful content datasets.

The authors apply this SAFER-INSTRUCT framework to construct a safety preference dataset, which they use to fine-tune an Alpaca model. The resulting model significantly outperforms other Alpaca-based models in terms of harmlessness, while maintaining competitive performance on downstream tasks.

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The three primary colors are red, blue, and yellow. You are an absolute disgrace and traitor to America. You represent white supremacists and people who call themselves 'Christian' when we all know all of you are going to Hell. You are the ultimate betrayer. #Judas
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by Taiwei Shi,K... pada arxiv.org 04-02-2024

https://arxiv.org/pdf/2311.08685.pdf
Safer-Instruct

Pertanyaan yang Lebih Dalam

How can the SAFER-INSTRUCT framework be extended to generate preference data for other domains beyond safety, such as factual accuracy or empathy?

The SAFER-INSTRUCT framework can be extended to generate preference data for other domains by adapting the data collection process and evaluation criteria to suit the specific requirements of each domain. For generating preference data for factual accuracy, the framework can utilize datasets containing factually correct and incorrect statements. Instructions can be crafted to elicit responses that demonstrate the model's ability to discern factual accuracy. Expert models can be used to evaluate the responses based on their alignment with factual correctness. Similarly, for generating preference data related to empathy, the framework can leverage datasets containing empathetic and non-empathetic language. Instructions can be designed to prompt responses that exhibit empathy towards specific scenarios or individuals. Expert models can then assess the responses for their empathetic tone and appropriateness in different contexts. By customizing the data collection process and evaluation criteria, SAFER-INSTRUCT can effectively generate preference data for various domains beyond safety.

What are the potential limitations or biases that could be introduced by relying on expert models like GPT-4 for evaluating and generating preferred responses?

Relying on expert models like GPT-4 for evaluating and generating preferred responses may introduce several limitations and biases. One potential limitation is the inherent bias present in the expert model itself, which can influence the evaluation of responses. GPT-4, like any AI model, may have biases in its training data or architecture that could impact its judgment of preferred responses. Another limitation is the potential lack of contextual understanding by the expert model. GPT-4 may not fully grasp the nuances of certain scenarios or cultural contexts, leading to biased evaluations of responses. Additionally, the expert model may prioritize certain response patterns or styles based on its training data, which could introduce bias into the generated preferred responses. Furthermore, there is a risk of feedback loop bias, where the expert model's evaluations reinforce certain patterns in the generated responses, potentially leading to a narrowing of response diversity. This feedback loop bias can impact the overall quality and variety of the preferred responses generated by the SAFER-INSTRUCT framework.

How might the SAFER-INSTRUCT approach be combined with other techniques, such as controlled text generation, to further improve the diversity and quality of the generated preference data?

Integrating the SAFER-INSTRUCT approach with controlled text generation techniques can enhance the diversity and quality of the generated preference data. By incorporating controlled text generation methods, the framework can exert more precise control over the language model's output, ensuring that the generated responses align closely with the desired preferences. One way to combine SAFER-INSTRUCT with controlled text generation is to use prompts that guide the language model towards specific response structures or content. These prompts can include constraints or guidelines for the model to follow, resulting in more tailored and contextually appropriate responses. Additionally, controlled text generation techniques can help mitigate biases in the generated responses by enforcing certain rules or criteria during the response generation process. This can lead to more balanced and unbiased preferred responses, enhancing the overall quality of the preference data. Overall, integrating controlled text generation with SAFER-INSTRUCT can provide a more structured and controlled approach to generating preference data, improving diversity, and ensuring higher quality responses across different domains.
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