Fine-tuning and Adapting Large Language Models
Chapter 1: Foundations of LLM Adaptation
Recap: Pre-trained Language Models and Transformers
The Need for Fine-tuning and Adaptation
Transfer Learning Paradigms in NLP
Architectural Considerations for Fine-tuning
Overview of Fine-tuning Approaches
Chapter 2: Data Preparation for Fine-tuning
Instruction Tuning Principles
Sourcing and Constructing Instruction Datasets
Formatting Data for Supervised Fine-tuning (SFT)
Domain Adaptation Data Requirements
Handling Data Scarcity and Imbalance
Data Augmentation Techniques for Text
Practice: Preparing an Instruction Tuning Dataset
Chapter 3: Full Parameter Fine-tuning
Mechanism of Full Fine-tuning
Setting up the Training Loop
Hyperparameter Tuning Strategies
Regularization Techniques to Prevent Overfitting
Managing Computational Resources
Checkpointing and Resuming Training
Hands-on Practical: Full Fine-tuning a Smaller LLM
Chapter 4: Parameter-Efficient Fine-tuning (PEFT) Methods
Rationale for Parameter Efficiency
Low-Rank Adaptation (LoRA)
Quantized Low-Rank Adaptation (QLoRA)
Adapter Modules
Prompt Tuning
Prefix Tuning
Comparison of PEFT Techniques
Implementation with Hugging Face PEFT Library
Hands-on Practical: Fine-tuning with LoRA
Hands-on Practical: Fine-tuning with QLoRA
Chapter 5: Advanced Fine-tuning Strategies
Multi-Task Fine-tuning
Sequential Adaptation and Continual Learning
Mitigating Catastrophic Forgetting
Introduction to Reinforcement Learning from Human Feedback (RLHF)
Reward Model Training
Policy Optimization with PPO
Challenges in Advanced Adaptation
Chapter 6: Evaluation and Analysis of Fine-tuned Models
Limitations of Standard NLP Metrics
Evaluating Instruction Following Capabilities
Assessing Factual Accuracy and Hallucinations
Bias and Fairness Assessment Techniques
Robustness Evaluation (Adversarial Attacks, OOD)
Model Calibration Assessment
Qualitative Analysis and Error Categorization
Human Evaluation Protocols
Practice: Analyzing Model Outputs for Errors
Chapter 7: Optimization and Deployment Considerations
Memory Optimization during Training
Accelerating Training with Distributed Strategies
Post-tuning Optimization: Quantization
Post-tuning Optimization: Pruning
Merging PEFT Adapters
Model Serialization and Packaging
Inference Serving Frameworks
Monitoring Fine-tuned Models in Production
Sequential Adaptation and Continual Learning
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- Overcoming catastrophic forgetting in neural networks, James Kirkpatrick, Razvan Pascanu, Neil C. Rabinowitz, John P. Lillicrap, Peter Moreton, Gregory Sidorov, Niru Mahendran, Richard Hadsell, Demis Hassabis, 2017 Proceedings of the National Academy of Sciences, Vol. 114 (National Academy of Sciences) DOI: 10.1073/pnas.1611835114 - Introduces Elastic Weight Consolidation (EWC), a regularization method to mitigate catastrophic forgetting by identifying and protecting parameters important for previous tasks.
- A Comprehensive Survey of Continual Learning: Theory, Methodology, and Application, Liyuan Wang, Xingxing Zhang, Maobin Li, Ling Luo, Jianchao Tan, Ruifeng Yuan, Jian Yang, Cong Chen, Xiaofeng Zhang, 2023 arXiv preprint arXiv:2303.14814 DOI: 10.48550/arXiv.2303.14814 - Offers a broad overview of continual learning, covering diverse strategies, challenges, and applications across various domains, including discussions relevant to sequential adaptation of LLMs.
- LoRA: Low-Rank Adaptation of Large Language Models, Edward J. Hu, Yelong Shen, Phillip Wallis, Zeyuan Allen-Zhu, Yuanzhi Li, Shean Wang, Lu Wang, Weizhu Chen, 2021 arXiv DOI: 10.48550/arXiv.2106.09685 - Introduces Low-Rank Adaptation (LoRA), a parameter-efficient fine-tuning technique highly relevant for adapting LLMs in sequential learning scenarios by adding small, task-specific modules.