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Meaning to Form: Measuring Systematicity as Information

2019/06/13 by Tiago Pimentel, Arya D. McCarthy, Pimentel, Tiago +8 · 3 citations
Computer Science · Psychology · Social Sciences · #Computation and Language (cs.CL) #FOS: Computer and information sciences #Language and cultural evolution #Language, Metaphor, and Cognition #Natural Language Processing Techniques #cs.CL

paper · pdf · doi:10.48550/arxiv.1906.05906

Accepted for publication at ACL 2019

openalex publication_date 2019/06/13 · arxiv created 2019/07/26 · arxiv updated 2019/07/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A longstanding debate in semiotics centers on the relationship between linguistic signs and their corresponding semantics: is there an arbitrary relationship between a word form and its meaning, or does some systematic phenomenon pervade? For instance, does the character bigram gl have any systematic relationship to the meaning of words like glisten, gleam and glow? In this work, we offer a holistic quantification of the systematicity of the sign using mutual information and recurrent neural networks. We employ these in a data-driven and massively multilingual approach to the question, examining 106 languages. We find a statistically significant reduction in entropy when modeling a word form conditioned on its semantic representation. Encouragingly, we also recover well-attested English examples of systematic affixes. We conclude with the meta-point: Our approximate effect size (measured in bits) is quite small---despite some amount of systematicity between form and meaning, an arbitrary relationship and its resulting benefits dominate human language.

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