Zipf’s Law of Abbreviation holds for individual characters across a broad range 
of writing systems

Koshevoy, Alexey; Miton, Helena; Morin, Olivier

doi:10.1016/j.cognition.2023.105527

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Zipf’s Law of Abbreviation holds for individual characters across a broad range of writing systems

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Morin, Olivier
The MINT independent research group, Max Planck Institute of Geoanthropology, Max Planck Society;

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Citation

Koshevoy, A., Miton, H., & Morin, O. (2023). Zipf’s Law of Abbreviation holds for individual characters across a broad range of writing systems. Cognition, 238: 105527. doi:10.1016/j.cognition.2023.105527.

Cite as: https://hdl.handle.net/21.11116/0000-000D-695D-6

Abstract

Zipf’s Law of Abbreviation – the idea that more frequent symbols in a code are simpler than less frequent ones – has been shown to hold at the level of words in many languages. We tested whether it holds at the level of individual written characters. Character complexity is similar to word length in that it requires more cognitive and motor effort for producing and processing more complex symbols. We built a dataset of character complexity and frequency measures covering 27 different writing systems. According to our data, Zipf’s Law of Abbreviation holds for every writing system in our dataset — the more frequent characters have lower degrees of complexity and vice-versa. This result provides further evidence of optimization mechanisms shaping communication systems.