The adaption of multilingual pre-trained Large Language Models (LLMs) into eloquent and helpful assistants is essential to facilitate their use across different language regions. In that spirit, we are the first to conduct an extensive study of the performance of multilingual models on parallel, multi-turn instruction-tuning benchmarks across a selection of the most-spoken Indo-European languages. We systematically examine the effects of language and instruction dataset size on a mid-sized, multilingual LLM by instruction-tuning it on parallel instruction-tuning datasets. Our results demonstrate that instruction-tuning on parallel instead of monolingual corpora benefits cross-lingual instruction following capabilities by up to 4.6%. Furthermore, we show that the Superficial Alignment Hypothesis does not hold in general, as the investigated multilingual 7B parameter model presents a counter-example requiring large-scale instruction-tuning datasets. Finally, we conduct a human annotation study to understand the alignment between human-based and GPT-4-based evaluation within multilingual chat scenarios.

通过对多种印欧语言中的大规模语言模型进行多语言指令调整数据集上的广泛研究，我们发现使用平行指令调整数据集相比单语数据集能提高跨语言指令遵循能力，还发现大规模指令调整数据集对于多语言7B参数模型至关重要，并进行人工注释研究以理解多语言聊天场景中基于人类和GPT-4的评价之间的对齐情况。

调查多语言指令调整：多语模型是否需要多语言指令？