LLM从零开始(32层)——干预措施:更新的指令微调结果
本文介绍了在32层语言模型上进行指令微调的最新实验结果,探讨了不同干预措施对模型性能的影响,包括训练策略调整和评估方法优化。
本文介绍了在32层语言模型上进行指令微调的最新实验结果,探讨了不同干预措施对模型性能的影响,包括训练策略调整和评估方法优化。
The author reviews the appendices of "Build a Large Language Model (from Scratch)" and found useful material on PyTorch basics, DistributedDataParallel training, and LoRA implementation. While these sections could have saved time during their explorations, they believe working through concepts independently provided deeper learning than simply reading explanations.
The author completed training a GPT-2-like model in 44 hours on a local machine, achieving performance close to GPT-2 small. Through systematic testing of various interventions, they identified learning rate adjustments and dropout removal as most effective for improving model loss. The author plans to next implement an LLM from scratch using JAX without reference to their book.
Updated instruction fine-tuning tests on GPT-2-style models show OpenAI's models performed best. Some custom models with similar test loss scores showed unexpected variations in instruction-following ability, with no clear pattern emerging across all tested models.