Clarifying orthography: Orthographic transparency as compressibility

Fuente: arXiv
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Main Authors: Torres, Charles J., Futrell, Richard
Format: Preprint
Published: 2025
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author Torres, Charles J.
Futrell, Richard
author_facet Torres, Charles J.
Futrell, Richard
contents Orthographic transparency -- how directly spelling is related to sound -- lacks a unified, script-agnostic metric. Using ideas from algorithmic information theory, we quantify orthographic transparency in terms of the mutual compressibility between orthographic and phonological strings. Our measure provides a principled way to combine two factors that decrease orthographic transparency, capturing both irregular spellings and rule complexity in one quantity. We estimate our transparency measure using prequential code-lengths derived from neural sequence models. Evaluating 22 languages across a broad range of script types (alphabetic, abjad, abugida, syllabic, logographic) confirms common intuitions about relative transparency of scripts. Mutual compressibility offers a simple, principled, and general yardstick for orthographic transparency.
format Preprint
id arxiv_https___arxiv_org_abs_2505_13657
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Clarifying orthography: Orthographic transparency as compressibility
Torres, Charles J.
Futrell, Richard
Computation and Language
Information Theory
Orthographic transparency -- how directly spelling is related to sound -- lacks a unified, script-agnostic metric. Using ideas from algorithmic information theory, we quantify orthographic transparency in terms of the mutual compressibility between orthographic and phonological strings. Our measure provides a principled way to combine two factors that decrease orthographic transparency, capturing both irregular spellings and rule complexity in one quantity. We estimate our transparency measure using prequential code-lengths derived from neural sequence models. Evaluating 22 languages across a broad range of script types (alphabetic, abjad, abugida, syllabic, logographic) confirms common intuitions about relative transparency of scripts. Mutual compressibility offers a simple, principled, and general yardstick for orthographic transparency.
title Clarifying orthography: Orthographic transparency as compressibility
topic Computation and Language
Information Theory
url https://arxiv.org/abs/2505.13657