让马拉地语政府文件翻译保持格式结构,提升跨语言可读性
Structure-Preserving Document Translation via Multi-Stage LLM Pipeline: A Case Study in Marathi

- 分阶段大模型流程:先识图定位,再翻译重构,确保布局一致
- 实测显示结构保留率、术语准确率和语义连贯性显著优于传统方法
- 适合政务系统、跨区域行政和政策研究者使用,支持多语言治理
印度政府文件主要以马拉地语等地区语言发布,对非本地读者、跨省行政机构和政策分析人员造成显著可及性障碍。尽管神经机器翻译在句子级别已取得进展,但现有系统普遍忽视文档结构、排版完整性和领域术语,难以应用于正式公文。本文提出一种马拉地语到英语的结构保真政府文档翻译框架,实现端到端文档转换并保持布局一致性。该系统整合了布局感知的光学字符识别、基于坐标的文本提取、大语言模型翻译以及通过HTML表示的结构化文档重建。通过施加空间对齐约束并保留文档层级元素,确保源文档与译文之间的结构一致性。在真实马拉地语政府PDF上的实验表明,相比传统纯文本翻译流程,本框架在结构保留、翻译连贯性和术语一致性方面均有显著提升。该工作为电子政务和行政文档处理提供了可扩展的多语言可及性解决方案。
原文摘要 · Abstract (English)
Government documents in India are predominantly issued in regional languages such as Marathi, creating substantial accessibility barriers for non-native readers, interstate administrative bodies, and policy analysts. Although recent advances in neural machine translation have improved sentence-level translation quality, existing systems largely neglect document structure, formatting integrity, and domain-specific terminology, thereby limiting their applicability to official documentation. This paper presents a structure-preserving Marathi-to-English government document translation framework capable of performing end-to-end document transformation while maintaining layout fidelity. The proposed system integrates layout-aware optical character recognition, coordinate-based text extraction, large language model based translation, and structured document reconstruction through HTML representations. By enforcing spatial alignment constraints and preserving hierarchical document elements, the framework ensures structural consistency between the source and translated documents. Experimental evaluation on real-world Marathi government PDFs demonstrates improved structural preservation, translation coherence, and terminological consistency compared to conventional text-only translation pipelines. The proposed framework contributes toward scalable multilingual accessibility solutions for e-governance and administrative document processing.
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