Large Language Models (LLMs) have gained significant attention in the field of natural language processing (NLP) due to their wide range of applications. However, training LLMs for languages other than English poses significant challenges, due to the difficulty in acquiring large-scale corpus and the requisite computing resources. In this paper, we propose ChatFlow, a cross-language transfer-based LLM, to address these challenges and train large Chinese language models in a cost-effective manner. We employ a mix of Chinese, English, and parallel corpus to continuously train the LLaMA2 model, aiming to align cross-language representations and facilitate the knowledge transfer specifically to the Chinese language model. In addition, we use a dynamic data sampler to progressively transition the model from unsupervised pre-training to supervised fine-tuning. Experimental results demonstrate that our approach accelerates model convergence and achieves superior performance. We evaluate ChatFlow on popular Chinese and English benchmarks, the results indicate that it outperforms other Chinese models post-trained on LLaMA-2-7B.

提出ChatFlow模型，通过跨语言迁移实现了大规模中文语言模型的高性能训练，包括大型语料库的收集与资源的利用、对齐跨语言表示以促进知识转移、使用动态数据采样器渐进式地将模型从无监督预训练过渡到有监督微调，实验证明了该方法在加速模型收敛和取得优越性能方面的优势。

大型语言模型中的跨语言迁移学习动态数据采样器