为提格雷尼亚语数词转写建立规则与算法，提升语音合成与无障碍应用能力
Tigrinya Number Verbalization: Rules, Algorithm, and Implementation
- 制定提格雷尼亚语基数与序数词的正式表达规则，涵盖连接词、量级词及日期时间等特殊情况
- 提出数词转文字的算法并开源实现，验证前沿大模型在该任务上表现不佳
- 适合语言建模、语音合成及提格雷尼亚语无障碍技术开发者使用
本文系统化地形式化了提格雷尼亚语的基数与序数词表达，填补了该语言计算资源的空白。工作记录了口语中数值表达的规范规则，包括连接系统、量级词以及日期、时间、货币等特殊情形的处理方式。我们提供了一个数词转文字的正式算法，并发布了开源实现。对前沿大语言模型的评估显示其在准确转写提格雷尼亚语数字方面存在显著缺陷，凸显了明确规则文档的重要性。本研究服务于面向提格雷尼亚语社群的语言建模、语音合成和无障碍应用。
原文摘要 · Abstract (English)
We present a systematic formalization of Tigrinya cardinal and ordinal number verbalization, addressing a gap in computational resources for the language. This work documents the canonical rules governing the expression of numerical values in spoken Tigrinya, including the conjunction system, scale words, and special cases for dates, times, and currency. We provide a formal algorithm for number-to-word conversion and release an open-source implementation. Evaluation of frontier large language models (LLMs) reveals significant gaps in their ability to accurately verbalize Tigrinya numbers, underscoring the need for explicit rule documentation. This work serves language modeling, speech synthesis, and accessibility applications targeting Tigrinya-speaking communities.
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