UltraMedical: Building Specialized Generalists in Biomedicine

UltraMedical: Building Specialized Generalists in Biomedicine

29 Oct 2024 | Kaiyan Zhang, Sihang Zeng, Ermo Hua, Ning Ding, Zhang-Ren Chen, Zhiyuan Ma, Haoxin Li, Ganqu Cui, Biging Qi, Xuekai Zhu, Xingtai Lv, Jin-Fang Hu, Zhiyuan Liu, Bowen Zhou
The paper "UltraMedical: Building Specialized Generalists in Biomedicine" by Kaiyan Zhang et al. introduces the UltraMedical dataset and a suite of specialized medical models based on the Llama-3 series. The dataset consists of 410K high-quality, diverse, and manually annotated medical instructions, complemented by synthetic data. These instructions are designed to cover various question types, including medical exams, literature-based questions, and open-ended prompts. The annotations include preference scores and rankings from advanced LLMs, which are used to fine-tune the Llama-3 models and develop a reward model for iterative preference learning. Key contributions of the paper include: 1. **UltraMedical Dataset**: A large-scale, diverse, and high-quality dataset of medical instructions, manually and synthetically curated, with preference annotations. 2. **Specialized Medical Models**: Fine-tuning of Llama-3 models on the UltraMedical dataset, achieving competitive performance on medical benchmarks. 3. **Reward Model**: Development of a reward model based on UltraMedical preferences, enhancing the models' reasoning abilities and performance in both medical and general domains. 4. **Iterative Preference Learning**: Implementation of online preference learning using the reward model to further improve the models' performance. The paper also discusses the challenges and limitations, such as the need for more robust reward models and the potential overfitting in general domains. The authors aim to address these challenges and provide valuable resources for the biomedical community, fostering collaboration and advancing the field of biomedical generative AI.The paper "UltraMedical: Building Specialized Generalists in Biomedicine" by Kaiyan Zhang et al. introduces the UltraMedical dataset and a suite of specialized medical models based on the Llama-3 series. The dataset consists of 410K high-quality, diverse, and manually annotated medical instructions, complemented by synthetic data. These instructions are designed to cover various question types, including medical exams, literature-based questions, and open-ended prompts. The annotations include preference scores and rankings from advanced LLMs, which are used to fine-tune the Llama-3 models and develop a reward model for iterative preference learning. Key contributions of the paper include: 1. **UltraMedical Dataset**: A large-scale, diverse, and high-quality dataset of medical instructions, manually and synthetically curated, with preference annotations. 2. **Specialized Medical Models**: Fine-tuning of Llama-3 models on the UltraMedical dataset, achieving competitive performance on medical benchmarks. 3. **Reward Model**: Development of a reward model based on UltraMedical preferences, enhancing the models' reasoning abilities and performance in both medical and general domains. 4. **Iterative Preference Learning**: Implementation of online preference learning using the reward model to further improve the models' performance. The paper also discusses the challenges and limitations, such as the need for more robust reward models and the potential overfitting in general domains. The authors aim to address these challenges and provide valuable resources for the biomedical community, fostering collaboration and advancing the field of biomedical generative AI.
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