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README.md
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---
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license: apache-2.0
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datasets:
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- snorkelai/Snorkel-Mistral-Self-Improvement
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---
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Original post: [Snorkel link]
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### Dataset:
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Training dataset: [snorkelai/Snorkel-Mistral-Self-Improvement](link)
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We utilize ONLY the prompts from [UltraFeedback](https://huggingface.co/datasets/HuggingFaceH4/ultrafeedback_binarized); **no external LLM responses used**.
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### Methodology:
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1. Generate five response variations for each prompt from a subset of 20,000 using the LLM - to start, we used [Mistral-7B-Instruct-v0.2](https://huggingface.co/mistralai/Mistral-7B-Instruct-v0.2).
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2. Apply [PairRM](https://huggingface.co/llm-blender/PairRM) for response reranking.
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3. Update the LLM by applying Direct Preference Optimization (DPO) on the top (chosen) and bottom (rejected) responses.
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4. Use this LLM as the base model for the next iteration, repeating three times in total.
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This overview provides a high-level summary of our approach.
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We plan to release more detailed results and findings in the coming weeks on the [Snorkel blog](https://snorkel.ai/blog/).
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### Key Premises:
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- **Specialization Requirement**: For most enterprise use cases, using LLMs "off-the-shelf" falls short of production quality, necessitating additional fine-tuning and alignment.
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- **Ease of Model Building**: Creating ranking/scoring/classification models is simpler than developing high-quality, manually annotated datasets for long-form responses.
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- **Programmatic Alignment**: Using smaller but specialized teacher models (reward models) can incrementally align LLMs towards specific axes. We call this **Programmatic Alignment** - capturing domain knowledge in programmatic forms that can be used to guide LLM improvement.
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### Applications:
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Unlike our customers, who have very specific use cases to align LLMs to,
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the AlpacaEval 2.0 leaderboard measures the ability of LLMS to follow general user instructions.
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Thus, for this demonstration, we use a general-purpose reward model - the performant [PairRM model](https://huggingface.co/llm-blender/PairRM).
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We use the [Mistral-7B-Instruct-v0.2](https://huggingface.co/mistralai/Mistral-7B-Instruct-v0.2) model as our base LLM.
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With this demonstration, we focus on the general approach of programmatic alignment.
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For interest in building your **specialized internal reward models
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that reflect your enterprises' needs**, please contact the Snorkel AI team or consider attending our
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[**Enterprise LLM Summit: Building GenAI with Your Data on January 25, 2024**](https://snorkel.ai/event/enterprise-llm-summit/)
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to learn more about "Programmatically scaling human preferences and alignment in GenAI".
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### Result:
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On [**Alpaca-Eval 2.0**](https://tatsu-lab.github.io/alpaca_eval/):
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- The base model: [Mistral-7B-Instruct-v0.2](https://huggingface.co/mistralai/Mistral-7B-Instruct-v0.2) scored **14.72**.
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After applying the above methodology:
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- This model scored **30.2** - ranked 3rd and the highest for an open-source base model at the time of publication.
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- When post-processing the model outputs with PairRM-best-of-16, which involved generating 16 responses and select the highest-scoring response by PairRM, we scored **34.86** - ranked 2nd.
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The best model on the leaderboard is "gpt-4-turbo", which is also the judge of optimal responses.
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We recognize that the Alpaca-Eval 2.0 benchmark does not entirely capture the full range of capabilities and performances of LLMs.
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However, in our current work, where the goal is to align with general "human preferences," Alpaca-Eval 2.0 serves as a suitable and representative benchmark.
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Moving forward, we anticipate further contributions from the community regarding new alignment axes, and conduct evaluations using other appropriate benchmarks.
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### Limitations:
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The model is a quick demonstration that the LLMs can be programmatically aligned using smaller specialized reward models.
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It does not have any moderation mechanisms.
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We look forward to continuing to engage with the research community and our customers exploring optimal methods for gettings models to respect guardrails,
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allowing for deployment in environments requiring moderated outputs.
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### Contemporary Work and Acknowledgements:
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- The Mistral AI Team for developing and releasing the advanced Mistral-7B-Instruct-v0.2 model.
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- The author of the [Direct Preference Optimization paper](https://arxiv.org/abs/2305.18290) for the innovative approach
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- The author of the [Pairwise Reward Model for LLMs paper](https://arxiv.org/abs/2306.02561) for the powerful general-purpose reward model
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- The HuggingFace team for the DPO implementation under [The Alignment Handbook](https://github.com/huggingface/alignment-handbook)
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- We would also like to acknowledge contemporary work published independently on arXiv on 2024-01-18 by Meta & NYU (Yuan, et al) in a paper called [Self-Rewarding Language Models](https://arxiv.org/abs/2401.10020),
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which proposes a similar general approach for creating alignment pairs from a larger set of candidate responses, but using the LLM as the reward model.
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While this may work for general-purpose models, our experience has shown that task-specific reward models guided by SMEs are necessary for most
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enterprise applications of LLMs for specific use cases, which is why we focus on the use of external reward models.
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### The Snorkel AI Team
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Hoang Tran, Chris Glaze, Braden Hancock
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