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Related Experiment Video

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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

Anomalous diffusion analysis of semantic evolution in major Indo-European languages.

Bogdán Asztalos¹, Gergely Palla^1,2, Dániel Czégel^3,4

¹Deptartment of Biological Physics, Eötvös University, Budapest, Hungary.

|March 26, 2024

Summary

Words evolve subdiffusively across languages, a universal law of semantic change. This finding reveals consistent patterns in how word meanings change over time, challenging previous assumptions.

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Area of Science:

Linguistics
Computational Linguistics
Complex Systems

Background:

Semantic evolution, the change in word meanings, is influenced by linguistic, societal, and technological factors.
Understanding the universal laws governing semantic change is a key challenge in linguistics.

Purpose of the Study:

To identify universal laws governing semantic evolution across languages.
To investigate the diffusion process of semantic change in meaning space.

Main Methods:

Developed an automated pipeline for diachronic distributional semantic embedding.
Controlled for underlying symmetries in semantic change.
Analyzed stochastic trajectories of word meanings across five major Indo-European languages.

Main Results:

Semantic evolution is universally subdiffusive across languages, with an anomalous diffusion exponent α = 0.45 ± 0.05.
Temporal correlations in semantic change directions are crucial for subdiffusive behavior.
Correlations in change sizes also significantly influence semantic change dynamics.

Conclusions:

Semantic change follows a universal subdiffusive law, distinct from normal diffusion.
The findings provide a quantitative framework for understanding semantic evolution.
This research offers insights into the fundamental mechanisms driving language change.