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arXiv · 2511.07230

Discourse Graph Guided Document Translation with Large Language Models

Viet-Thanh Pham·Minghan Wang·Hao-Han Liao·Thuy-Trang Vu
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Abstract

Adapting large language models to full document translation remains challenging due to the difficulty of capturing long-range dependencies and preserving discourse coherence throughout extended texts. While recent agentic machine translation systems mitigate context window constraints through multi-agent orchestration and persistent memory, they require substantial computational resources and are sensitive to memory retrieval strategies. We introduce TransGraph, a discourse-guided framework that explicitly models inter-chunk relationships through structured discourse graphs and selectively conditions each translation segment on relevant graph neighbourhoods rather than relying on sequential or exhaustive context. Across three document-level MT benchmarks spanning six languages and diverse domains, TransGraph consistently surpasses strong baselines in translation quality and terminology consistency while incurring significantly lower token overhead.

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Viet-Thanh Pham, Minghan Wang, Hao-Han Liao, Thuy-Trang Vu. 2025-11-10. Discourse Graph Guided Document Translation with Large Language Models. https://arxiv.org/abs/2511.07230

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