Discourse Graph Guided Document Translation with Large Language Models

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


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.
Anthology ID:
2026.eacl-long.75
Volume:
Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
March
Year:
2026
Address:
Rabat, Morocco
Editors:
Vera Demberg, Kentaro Inui, Lluís Marquez
Venue:
EACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1607–1627
Language:
URL:
https://preview.aclanthology.org/ingest-eacl/2026.eacl-long.75/
DOI:
Bibkey:
Cite (ACL):
Viet Thanh Pham, Minghan Wang, Hao-Han Liao, and Thuy-Trang Vu. 2026. Discourse Graph Guided Document Translation with Large Language Models. In Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers), pages 1607–1627, Rabat, Morocco. Association for Computational Linguistics.
Cite (Informal):
Discourse Graph Guided Document Translation with Large Language Models (Pham et al., EACL 2026)
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PDF:
https://preview.aclanthology.org/ingest-eacl/2026.eacl-long.75.pdf