Trimming Phonetic Alignments Improves the Inference of Sound Correspondence Patterns from Multilingual Wordlists

• URL: http://arxiv.org/abs/2303.17932v1
• Date: Fri, 31 Mar 2023 09:55:48 GMT
• Title: Trimming Phonetic Alignments Improves the Inference of Sound Correspondence Patterns from Multilingual Wordlists
• Authors: Frederic Blum and Johann-Mattis List
• Abstract summary: Methods for the automatic inference of correspondence patterns from phonetically aligned cognate sets have been proposed. Since annotation is tedious and time consuming, it would be desirable to find ways to improve aligned cognate data automatically. We propose a workflow that trims phonetic alignments in comparative linguistics prior to the inference of correspondence patterns.
• Score: 3.096615629099617
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Sound correspondence patterns form the basis of cognate detection and phonological reconstruction in historical language comparison. Methods for the automatic inference of correspondence patterns from phonetically aligned cognate sets have been proposed, but their application to multilingual wordlists requires extremely well annotated datasets. Since annotation is tedious and time consuming, it would be desirable to find ways to improve aligned cognate data automatically. Taking inspiration from trimming techniques in evolutionary biology, which improve alignments by excluding problematic sites, we propose a workflow that trims phonetic alignments in comparative linguistics prior to the inference of correspondence patterns. Testing these techniques on a large standardized collection of ten datasets with expert annotations from different language families, we find that the best trimming technique substantially improves the overall consistency of the alignments. The results show a clear increase in the proportion of frequent correspondence patterns and words exhibiting regular cognate relations.

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