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arXiv · 2402.04636

TransLLaMa: LLM-based Simultaneous Translation System

Roman Koshkin·Katsuhito Sudoh·Satoshi Nakamura
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Abstract

Decoder-only large language models (LLMs) have recently demonstrated impressive capabilities in text generation and reasoning. Nonetheless, they have limited applications in simultaneous machine translation (SiMT), currently dominated by encoder-decoder transformers. This study demonstrates that, after fine-tuning on a small dataset comprising causally aligned source and target sentence pairs, a pre-trained open-source LLM can control input segmentation directly by generating a special "wait" token. This obviates the need for a separate policy and enables the LLM to perform English-German and English-Russian SiMT tasks with BLEU scores that are comparable to those of specific state-of-the-art baselines. We also evaluated closed-source models such as GPT-4, which displayed encouraging results in performing the SiMT task without prior training (zero-shot), indicating a promising avenue for enhancing future SiMT systems.

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Roman Koshkin, Katsuhito Sudoh, Satoshi Nakamura. 2024-02-07. TransLLaMa: LLM-based Simultaneous Translation System. https://arxiv.org/abs/2402.04636

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