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arXiv 2302.00129cs.CLq-bio.NC
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句法结构的普适拓扑规律性

Universal Topological Regularity of Syntactic Structures

Radboud University(拉德堡德大学)

Fermín Moscoso del Prado Martín

AI总结:

该研究分析124种语言的依存树,发现其拓扑偏离随机性,提出由增量式语法编码和次线性优先依附模型自然产生,无需直接优化交际。

摘要:

尽管句法依存树被广泛使用,但支配其组织的原则仍鲜为人知。我分析了来自124种类型学、遗传学和地理上多样语言的依存树。其拓扑结构系统地偏离了随机性。相对于均匀采样的随机树,依存树表现出更大的结构鲁棒性和更低的枝干异质性。我提出这些普适规律性自然产生于增量式语法编码。我使用次线性优先依附模型来模拟这一过程。该模型准确再现了观察到的拓扑结构。更广泛地,结果展示了句法的普适统计属性如何从简单且认知动机明确的生成过程中涌现。它们进一步阐明了“通过构造实现效率”的更广泛原则:交际高效的句法结构无需直接针对交际进行优化即可产生。

英文摘要:

Despite their widespread use, the principles governing the organisation of syntactic dependency trees remain poorly understood. I analyse dependency trees from 124 typologically, genetically, and geographically diverse languages. Their topology departs systematically from randomness. Relative to uniformly sampled random trees, dependency trees exhibit greater structural robustness and lower branching heterogeneity. I propose that these universal regularities emerge naturally from incremental grammatical encoding. I model this process using sublinear preferential attachment. The model accurately reproduces the observed topology. More generally, the results demonstrate how a universal statistical property of syntax can emerge from a simple, cognitively motivated generative process. They further illustrate a broader principle of efficiency by construction: communicatively efficient syntactic structures can emerge without direct optimisation for communication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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