发现维诺奇手稿有分层的字序与方向约束，暗示其可能为密码结构。
Evidence of Layered Positional and Directional Constraints in the Voynich Manuscript: Implications for Cipher-Like Structure
- 分析手稿字符序列，发现词内右到左优化与词间左到右依赖。
- 四种语言对比中未见此方向分离现象，且两种生成模型均无法复现全部特征。
- 首次提供可量化的评估基准，适合密码学与古籍研究者参考。
维诺奇手稿（VMS）的未知来源文字序列长期无法进行语言学解析。本文系统分析其字符序列，揭示出两个互补的结构层级：词内字符序列存在从右到左的优化，而词间则呈现从左到右的依赖关系，这种方向性分离在四种对比语言（英语、法语、希伯来语、阿拉伯语）中均未出现。我们进一步评估两类结构生成器是否能符合四项联合指标：参数化槽位生成器与实现鲁格（2004）杂乱假说的卡丹密码格。在完整参数空间测试中，两类模型均无法同时复现所有四项特征。尽管不排除其他未测试生成模型的可能性，但本研究首次提供了可供未来生成或密码分析模型评估的量化基准，提示维诺奇手稿表现出难以仅通过简单位置或频率机制复现的密码式结构约束。
原文摘要 · Abstract (English)
The Voynich Manuscript (VMS) exhibits a script of uncertain origin whose grapheme sequences have resisted linguistic analysis. We present a systematic analysis of its grapheme sequences, revealing two complementary structural layers: a character-level right-to-left optimization in word-internal sequences and a left-to-right dependency at word boundaries, a directional dissociation not observed in any of our four comparison languages (English, French, Hebrew, Arabic). We further evaluate two classes of structured generator against a four-signature joint criterion: a parametric slot-based generator and a Cardan grille implementing Rugg's (2004) gibberish hypothesis. Across their full tested parameter spaces, neither class reproduces all four signatures simultaneously. While these results do not rule out generator classes we have not tested, they provide the first quantitative benchmarks against which any future generative or cryptanalytic model of the VMS can be evaluated, and they suggest that the VMS exhibits cipher-like structural constraints that are difficult to reproduce from simple positional or frequency-based mechanisms alone.
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